Drivers Manual

CASCADIA

Part Number STI 478

Publication Number STI-478-6

IntroductionThis manual provides information needed to operateand understand the vehicle and its components.More detailed information is contained in the OwnersWarranty Information for North America booklet, andin the vehicles workshop and maintenance manuals.Custom-built Freightliner vehicles are equipped withvarious chassis and cab components. Not all of theinformation contained in this manual applies to everyvehicle. For details about components in your ve-hicle, refer to the chassis specification pages in-cluded in all new vehicles and to the vehicle specifi-cation decal, located inside the vehicle.For your reference, keep this manual in the vehicleat all times.IMPORTANT: Descriptions and specifications inthis manual were in effect at the time of printing.Freightliner Trucks reserves the right to discon-tinue models and to change specifications ordesign at any time without notice and withoutincurring obligation. Descriptions and specifica-tions contained in this publication provide nowarranty, expressed or implied, and are subjectto revisions and editions without notice.

Environmental Concerns andRecommendationsWhenever you see instructions in this manual to dis-card materials, you should first attempt to reclaimand recycle them. To preserve our environment, fol-low appropriate environmental rules and regulationswhen disposing of materials.

Event Data RecorderThis vehicle is equipped with one or more devicesthat record specific vehicle data. The type andamount of data recorded varies depending on howthe vehicle is equipped (such as the brand of engine,if an air bag is installed, or if the vehicle features acollision avoidance system, etc.).

Emissions and Fuel EfficiencyComplianceThis vehicle must be regularly inspected and main-tained as indicated in the Cascadia MaintenanceManual, and in the Pre- and Post-Trip Inspectionsand Maintenance chapter in this manual, in order tocontinue satisfactory performance and ensure cover-age of the vehicle under the manufacturers warranty.Many maintenance procedures ensure that the ve-hicle and engine continue to comply with applicableemissions standards. Maintenance procedures, usingcomponents engineered to comply with greenhousegas emissions and fuel efficiency regulations, may beperformed by an authorized Daimler Trucks NorthAmerica dealer, an independent outlet, or the vehicleowner or operator.The vehicle owner is responsible for determining thesuitability of replacement components to maintaincompliance with federal and local jurisdictional regu-lations. Components including, but not limited to,tires, cab/sleeper side extenders, chassis fairings,bumper, hood, vehicle speed limiters, and idle reduc-tion timers are specifically designed and manufac-tured to exacting standards for regulatory fuel effi-ciency and greenhouse gas emissions compliance. Itis important that these components are always re-placed with components that meet or exceed the per-formance of the originally installed components.

Customer Assistance CenterHaving trouble finding service? Call the CustomerAssistance Center at 1-800-385-4357 or 1-800-FTL-HELP. Call night or day, weekdays or weekends, fordealer referral, vehicle information, breakdown coor-dination, or Fleetpack assistance. Our people areknowledgeable, professional, and committed to fol-lowing through to help you keep your truck moving.

Reporting Safety DefectsIf you believe that your vehicle has a defect whichcould cause a crash or could cause injury ordeath, you should immediately inform the NationalHighway Traffic Safety Administration (NHTSA) inaddition to notifying Daimler Trucks North AmericaLLC.If the NHTSA receives similar complaints, it mayopen an investigation, and if it finds that a safety

Foreword

STI-478-6 (2/13)Part Number STI 478

Printed in U.S.A.

defect exists in a group of vehicles, it may order arecall and remedy campaign. However, NHTSAcannot become involved in individual problemsbetween you, your dealer, or Daimler Trucks NorthAmerica LLC.To contact NHTSA, you may call the VehicleSafety Hotline toll-free at 1-888-327-4236 (TTY:1-800-424-9153); go to www.safercar.gov; orwrite to: Administrator, NHTSA, 1200 New JerseyAvenue, SE, Washington, DC 20590. You can alsoobtain other information about motor vehicle safetyfrom www.safercar.gov.Canadian customers who wish to report a safety-related defect to Transport Canada, Defect Investi-gations and Recalls, may telephone the toll-freehotline 1-800-333-0510, or contact TransportCanada by mail at: Transport Canada, ASFAD,Place de Ville Tower C, 330 Sparks Street, Ot-tawa, Ontario, Canada K1A 0N5.For additional road safety information, please visitthe Road Safety website at: www.tc.gc.ca/roadsafety.

20072013 Daimler Trucks North America LLC. All rights reserved. Daimler Trucks North America LLC is a Daimlercompany.No part of this publication, in whole or part, may be translated, reproduced, stored in a retrieval system, or transmittedin any form by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written per-mission of Daimler Trucks North America LLC. For additional information, please contact Daimler Trucks NorthAmerica LLC, Service Systems and Documentation, P.O. Box 3849, Portland OR 972083849 U.S.A. or refer towww.Daimler-TrucksNorthAmerica.comand www.FreightlinerTrucks.com.

Foreword

ContentsChapter Page

Introduction, Environmental Concerns and Recommendations,Event Data Recorder, Emissions and Fuel Efficiency Compliance,Customer Assistance Center, Reporting Safety Defects . . . . . . . . . . . . . . . . . . . . Foreword

1 Vehicle Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.12 Vehicle Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.13 Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.14 Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.15 Driver Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.16 Driver Assistance Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.17 Seats and Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.18 Climate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.19 Cab Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1

10 Engine Starting, Operation, and Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.111 Optional Engine Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.112 Emissions and Fuel Efficient Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.113 Brake Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.114 Manual Transmissions and Hydraulic Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.115 Automated Transmissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.116 Drive Axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.117 Steering System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.118 Fifth Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.119 Trailer Couplings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19.120 Pre- and Post-Trip Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.121 Pre- and Post-Trip Inspections and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.122 Cab Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.123 Headlight Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.124 In an Emergency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.125 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.1

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I.1

1Vehicle Identification

Component Information Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1Component GWR Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1Federal Motor Vehicle Safety Standard Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1Canadian Motor Vehicle Safety Standard Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1Emissions Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1

Component Information LabelNOTE: Labels shown in this chapter are ex-amples only. Actual specifications may vary fromvehicle to vehicle.The component information label lists the vehiclemodel, identification number, and major componentmodels. It also lists the major assemblies and instal-lations shown on the chassis specification sheet.One copy of the component information label is at-tached to the inside of the glove box; another copy isinside the rear cover of the Owners Warranty Infor-mation for North America booklet. An illustration ofthe label is shown in Fig. 1.1.

Component GWR LabelThe component GWR label is located on thepassenger-side B-pillar. The label provides maximumGWR ratings for each component.See Fig. 1.2 for a typical component GWR label.

Federal Motor Vehicle SafetyStandard LabelsNOTE: Due to the variety of Federal Motor Ve-hicle Safety Standard (FMVSS) certification re-quirements, not all of the labels shown will applyto your vehicle.Tractors with or without fifth wheels purchased in theU.S. are marked as certified by means of an FMVSScertification label. See Fig. 1.3. This label is attachedto the driver-side B-pillar, as shown in Fig. 1.4.

The tire and rim portion of the FMVSS certificationlabel certifies suitable tire and rim combinations thatcan be installed on the vehicle, for the given grossaxle weight rating. Tires and rims installed on thevehicle at the time of manufacture may have a higherload capacity than that certified by the tire and rimlabel. If the tires and rims currently on the vehiclehave a lower load capacity than that shown on thetire and rim label, then the tires and rims determinethe load limitations on each of the axles.Trucks built without a cargo body that are intendedfor service in the U.S. have an incomplete vehiclecertification label attached by the final-stage manu-facturer. See Fig. 1.5. This label will be attached tothe incomplete vehicle document included with thevehicle, and certifies that the vehicle conforms to allapplicable FMVSS regulations in effect on the date ofcompletion.

Canadian Motor Vehicle SafetyStandard LabelsIn Canada, tractors with fifth wheels are marked ascertified by means of a statement of compliance labelwith the Canadian National Safety Mark attached tothe driver-side door frame B-pillar. See Fig. 1.6.Trucks built without a cargo body and tractors builtwithout a fifth wheel that are intended for service inCanada have an incomplete vehicle certification labelattached to the driver-side B-pillar. After completionof the vehicle, a complete certification label must beattached by the final-stage manufacturer to certifythat the vehicle conforms to all applicable CanadaMotor Vehicle Safety Standard (CMVSS) regulationsin effect on the date of completion.

Emissions LabelsAftertreatment System IndicatorsLabelEngines and vehicles manufactured after December31, 2006 and domiciled in the U.S. or Canada arerequired to meet all EPA regulations effective as ofthe vehicle build date, and are equipped with anemission aftertreatment system (ATS). Vehicles do-miciled outside of the U.S. and Canada may nothave aftertreatment equipment, depending upon localstatutory emissions guidelines. See Table 1.1.

02/20/2012 f080176

Fig. 1.1, Component Information Label

Vehicle Identification

1.1

A warning label on the driver-side visor contains im-portant warning indicators in the instrument clusterthat pertain to the ATS. See Fig. 1.7 or Fig. 1.8.It is a violation of U.S. federal law to alter exhaustplumbing, ATS, or other components in any way thatwould bring the engine/vehicle out of compliance withcertification requirements [Ref: 42 U.S.C. S7522(a)(3)]. It is the owners responsibility to maintain thevehicle so that it conforms to EPA regulations.

02/20/2012 f080178

Fig. 1.2, Component GWR Label

02/20/2012 f080177

Fig. 1.3, Vehicle Certification Label

02/28/2012 f080182

1

2

1. EPA Noise Emission Control Label2. FMVSS Certification Label

Fig. 1.4, Label Locations

f08018002/28/2012

Fig. 1.5, Incomplete Vehicle Certification Label

f08002410/10/2006

Fig. 1.6, Canadian National Safety Mark

Vehicle Identification

1.2

Applicable Emissions System Based on Build Date and EPA RegulationsBuild Date Regulation: Emissions Components

January 1, 2007December 31,2009

EPA07 (reduce nitrogen oxides (NOx) emissions to 1.1 g/bhp-hr, and reduceparticulate matter emissions to 0.01 g/bhp-hr): Aftertreatment device (ATD) containinga diesel particulate filter that traps soot and ash.*

January 1, 2010December 31,2012

EPA10 (reduce NOx emissions to 0.2 g/bhp-hr): EPA07-type ATD, with additionalselective catalyst reduction (SCR) technology that utilizes diesel exhaust fluid (DEF)to convert NOx to nitrogen and water vapor.

From March 5, 2012GHG14: Aerodynamic and fuel efficiency components including, but not limited to,tires, cab/sleeper side extenders, chassis fairings, bumper, hood, vehicle speedlimiters, and idle reduction timers specifically designed to meet regulatory fuelefficiency and greenhouse gas emissions standards.

* Cummins, Detroit, and Mercedes-Benz ATDs are also equipped with a diesel oxidation catalyst to break down pollutants.Table 1.1, Applicable Emissions System Based on Build Date and EPA Regulations

EPA Noise Emission Control LabelA vehicle noise emission control label (Fig. 1.9) islocated on the driver-side B-pillar as shown inFig. 1.4. It is the owners responsibility to maintainthe vehicle so that it conforms to EPA regulations.

IMPORTANT: Certain Freightliner incompletevehicles may be produced with incomplete noisecontrol hardware. Such vehicles will not have avehicle noise emission control information label.For such vehicles, it is the final-stage manufac-turers responsibility to complete the vehicle inconformity to U.S. EPA regulations (40 CFR Part205) and label it for compliance.

f080156

EXHAUST AFTERTREATMENT SYSTEM INFORMATION

Switch.

Level 1 Level 3Level 2 Level 4Filter RegenerationRecommended.

Filter is reaching

Bring vehicle tohighway speeds to

Filter Regeneration

Filter is nowreaching maximumcapacity.To avoid enginederate, bring vehicle

Parked RegenerationRequired EngineDerateFilter has reachedmaximum capacity.

Vehicle must beparked, and a Parked

Service Regeneration Required.Engine Derate To Idle Only.

Filter has exceeded maximumcapacity.

Vehicle must be parked, and aService Regeneration must be

(Solid) (Flashing) (Flashing)CHECK

INDICATORLAMP(S)

Indicator LampMessage(s)

Diesel ParticulateFilter Condition

Required Action

capacity.

STOP

allow for an AutomaticRegeneration orperform a Parked

to highway speedsto allow for anAutomaticRegeneration, orperform a ParkedRegeneration assoon as possible.

Regeneration mustbe performed.Engine will beginderate.

performed. Check engineoperators manual for details.Engine will shut down.

For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.

02/20/2009

WARNING

HEST (High ExhaustSystem Temperature)

Exhaust componentsand exhaust gas are athigh temperature. Whenstationary, keep awayfrom people andflammable materials orvapors.

A regeneration is inprogress.

Flashing

Solid

Regeneration.

Necessary

Fig. 1.7, ATS Indicators, EPA07

Vehicle Identification

1.3

Vehicle Emission Control InformationLabelModel year 2013 and later vehicles meet additionalrequirements as specified by federal greenhouse gasand fuel efficiency regulations (GHG14). These ve-hicles are equipped with components that increasefuel efficiency and reduce GHG emissions. Compo-nents may include, but are not limited to, low-rollingresistance tires; aerodynamic devices such as hood,cab side extenders, and fuel tank fairings; vehiclespeed limiters; and idle shutdown timers.

A Vehicle Emission Control Information Label is lo-cated on the driver-side door. See Fig. 1.10. It is theowners responsibility to maintain the vehicle so thatit conforms to EPA and NHTSA regulations.

Certified Clean Idle LabelThe California Air Resources Board (CARB) requiresmodel year 2008 and newer heavy-duty diesel en-gines to be equipped with a non-programmable en-gine shutdown system that automatically shuts downthe engine after five minutes of idling in order to limitemissions of particulate matter and NOx.

DPF Regen Needed

Hot Exhaust

DEF Refill Needed

Diesel Particulate Filter (DPF)regeneration is needed.If flashing, regenerate as soon aspossible. Engine derate possible.Hot exhaust can cause fire.Keep flammables and people awayfrom exhaust.

Diesel Exhaust Fluid (DEF) level islow. Engine derate likely.Refill tank with certified DEF.

2401656000

IMPORTANT

DEF

11/30/2010 f080162

See operators manual for complete instructions.

Fig. 1.8, ATS Indicators, EPA10 and Newer

10/06/98 f0800262400273020

VEHICLE NOISE EMISSION CONTROL INFORMATIONFREIGHTLINER CORPORATIONTHIS VEHICLE CONFORMS TO U.S. EPA REGULATIONS FOR NOISE EMISSIONAPPLICABLE TO MEDIUM AND HEAVY TRUCKS.THE FOLLOWING ACTS OR THE CAUSING THEREOF BY ANY PERSON ARE PROHIBITED BYTHE NOISE CONTROL ACT OF 1972:A. THE REMOVAL OR RENDERING INOPERATIVE, OTHER THAN FOR PURPOSES OF MAINTENANCE, REPAIR, OR REPLACEMENT, OF ANY NOISE CONTROL DEVICE OR ELEMENT OF DESIGN (LISTED IN THE OWNERS MANUAL) INCORPORATED INTO THIS VEHICLE IN COMPLIANCE WITH THE NOISE CONTROL ACT.B. THE USE THIS VEHICLE AFTER SUCH DEVICE OR ELEMENT OF DESIGN HAS BEEN REMOVED OR RENDERED INOPERATIVE.

DATE OF MANUFACTURE 01/96

Fig. 1.9, Vehicle Noise Emission Control Label

f08018102/29/2012

MANUFACTURED BY:VIN:VEH FAMILY CD:GVWRKGGVWRLBS

REGULATORY CLASS:

EMISSION CONTROL IDENTIFIERS:

DATE OF MANUFACTURE:VEHICLE EMISSION CONTROL INFORMATION

THIS VEHICLE COMPLIES WITH U. S. EPA REGULATIONS FOR XXXX HEAVY DUTY VEHICLES.SEE OWNERS MANUAL FOR PROPER MAINTENANCE OF THIS VEHICLE. U PART NO. 2401177060 REV A

Fig. 1.10, Vehicle Emission Control Information Label

Vehicle Identification

1.4

Certified vehicles are equipped with a label placednear the bottom edge of the driver-side door. SeeFig. 1.11.

CERTIFIEDCLEAN IDLE

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Fig. 1.11, CARB Clean Idle Label

Vehicle Identification

1.5

2Vehicle Access

Cab Door Locks and Handles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1Grab Handles and Access Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1Cab-to-Sleeper Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3Sleeper Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3Sleeper Luggage Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4Back-of-Cab Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4Hood Opening and Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5

Cab Door Locks and HandlesOne common key operates the ignition switch and allof the door locks.IMPORTANT: Each key is numbered. Recordthe number so a duplicate key can be made, ifneeded.To unlock the drivers door from outside the cab, in-sert the key in the lockset and turn it one-quarter turnclockwise. See Fig. 2.1. To remove the key, turn itcounterclockwise to the original position. Pull out onthe door pull handle to open the door.

To unlock the passengers door from outside the cab,insert the key in the lockset and turn it one-quarterturn counterclockwise. Turn the key clockwise to theoriginal position to remove it.NOTE: The cab door locks can be operatedwhen the doors are open.To lock a door from outside the cab, insert the key inthe lockset and turn it in the direction opposite to theunlocking direction (counterclockwise for the driversdoor, clockwise for the passengers door). Close thedoor if it is open.To lock either door from inside the cab, push the lockbutton downwards. See Fig. 2.2.To open the door from the inside, lift up on the doorlever. This will unlatch the door whether or not it islocked.

To unlock the door without unlatching it, pull the lockbutton upwards.

Grab Handles and AccessSteps

WARNINGWet or dirty shoe soles greatly increase thechance of slipping or falling. If your soles are wetor dirty, be especially careful when climbingonto, or down from, the back-of-cab area.Always maintain three-point contact with theback-of-cab access supports while entering andexiting the back-of-cab area. Three-point contactmeans both feet and one hand, or both handsand one foot, on the grab handles, steps, anddeck plates. Other areas are not meant to sup-port back-of-cab access, and grabbing or step-ping in the wrong place could lead to a fall, andpersonal injury.Be careful not to get hands or feet tangled inhoses or other back-of-cab equipment. Careless-ness could cause a person to trip and fall, withpossible injury.

10/22/2001 f720397

1

2

3

1. Key2. Lockset

3. Door Pull Handle

Fig. 2.1, Exterior Door Handle

06/22/2006

1

2

3 f7206391. Lock Button2. Integral Door Upper Grab Handle3. Door Lever

Fig. 2.2, Door Interior

Vehicle Access

2.1

Entering the Driver SideWhen entering the cab from the driver side, use thegrab handle and access steps as follows:1. Open the driver side door, and place anything

that you are carrying in the cab.2. Using both hands, grasp the grab handle that is

on the B-pillar, or use your left hand on the inte-gral door lower grab handle. See Fig. 2.3. Reachup as far as is comfortable.

3. Place your right foot on the bottom step, and pullyourself up. Move your left hand to the integraldoor upper grab handle.

4. Place your left foot on the top step.

5. Grasp the steering wheel with your left hand, andstep up.

6. Step into the cab with your right foot first, andgrasp the steering wheel with your right hand.

Exiting the Driver SideExit the cab from the driver side as follows:IMPORTANT: Do not attempt to exit the cabwhile carrying any items in your hands.1. Grasp the steering wheel with both hands, place

your left foot on the top step, then stand on thethreshold facing into the cab.

2. Using your right hand, grasp the grab handle,located on the B-pillar.

3. Move your right foot to the bottom step.4. Move your left hand to the integral door lower

grab handle.5. Step to the ground with your left foot first.

Entering the Passenger SideWhen entering the cab from the passenger side, usethe grab handles and access steps as follows:1. Open the passenger-side door, and place any-

thing that you are carrying in the cab.2. Using your left hand, grasp the grab handle

thats on the rear of the door opening. SeeFig. 2.4.

3. Using your right hand, grasp the integral doorlower grab handle.

4. Place your right foot on the bottom step, andstep up to the upper step with your left foot.

5. Place your right foot on the top step, and stepup.

6. Move your right hand to the upper grab handleon the windshield post.

7. Step into the cab with your left foot first.

Exiting the Passenger SideExit the cab from the passenger side as follows:IMPORTANT: Do not attempt to exit the cabwhile carrying any items in your hands.

11/30/2006 f602271

1

2

3

4

5

1. Steering Wheel2. B-Pillar Grab Handle3. Bottom Step

4. Top Step5. Integral Door Lower

Grab Handle

Fig. 2.3, Driver-Side Steps and Grab Handle

Vehicle Access

2.2

1. Using both hands, grasp the grab handle thatson the windshield post, and place your right footon the top step while standing up from the seatfacing inward.

2. Place your left foot on the bottom step.3. Move your left hand to the lower grab handle

located at the rear edge of the door opening.See Fig. 2.4.

4. Move your right hand to the integral door lowergrab handle.

5. Step to the ground with your right foot first.

Cab-to-Sleeper AccessTo open the sleeper access on vehicles with vinylsleeper curtains, unzip the sleeper curtains. If de-sired, unsnap the curtains all the way around thesides and top, and remove the curtains.To open the sleeper access on vehicles with veloursleeper curtains, unfasten the snaps at one side,then push the curtain to the opposite side.

Sleeper DoorThe sleeper door (Fig. 2.5, Ref. 1) is not intended forentry or exit. The door is intended only as a conve-nient means to stow or remove personal belongingsin and from the sleeper area. To open the sleeperdoor from the inside, push down on the lever handlelocated inside the sleeper compartment aft of thedoor, or pull out on the upper lever located inside thecab door opening; see Fig. 2.6. To open the sleeperdoor from outside, open the cab door, then pull outon the upper lever located inside the cab door open-ing. To close the door, pull on the strap attached tothe inside of the door, or push it closed from the out-side, until it latches.IMPORTANT: The sleeper doors are two-stagelatching. When closing the doors, ensure thatthey are completely latched to prevent windnoise and water intrusion.

01/03/2007 f720643

1

2

3

4

1. Lower Grab Handle2. Upper Grab Handle3. Integral Door Lower Grab Handle4. Top Step

Fig. 2.4, Passenger-Side Steps and Grab Handles

04/20/2007

1

2

f602302

1. Sleeper Door2. Luggage Compartment Door

Fig. 2.5, Sleeper Doors

Vehicle Access

2.3

Sleeper Luggage DoorTo open the sleeper luggage door, pull out on thelower lever located inside the cab door opening. SeeFig. 2.6. To close the door, push it closed until itlatches.

Back-of-Cab AccessWARNING

External surfaces of the exhaust system remainhot after the engine has been shut down. Whenaccessing the back of the cab or sleeper, do nottouch any part of the exhaust system, or severeburns could occur.When trailer air and electrical connections cannot bereached conveniently from the ground, Federal MotorCarrier Safety Regulations require commercial carri-ers to provide back-of-cab access.Optional grab handles are mounted either on bothcab sidewalls, or on the left sidewall only. SeeFig. 2.7. Steps are mounted either on the fuel tank(s)or on metal brackets. When a deck plate is neces-sary, it is mounted across the top of the frame rails.IMPORTANT: Climb onto, and down from, back-of-cab access facing in toward the vehicle, asyou would on a ladder. Do not climb up or downfacing out away from the vehicle.

WARNINGWet or dirty shoe soles greatly increase thechance of slipping or falling. If your soles are wetor dirty, be especially careful when climbingonto, or leaving, the back-of-cab area.Always maintain three-point contact with theback-of-cab access supports while entering andexiting the back-of-cab area. Three-point contactmeans both feet and one hand, or both handsand one foot, on the grab handles, steps, anddeck plates. Other areas are not meant to sup-port back-of-cab access, and grabbing or step-ping in the wrong place could lead to a fall, andpersonal injury.

03/22/2007 f720661

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2

1. Sleeper Door Lever2. Luggage Door Lever

Fig. 2.6, Sleeper Door Levers

09/24/2007 f602335

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1

1

3

1. Steps2. Grab Handle

3. Deck Plate

Fig. 2.7, Back-of-Cab Access

Vehicle Access

2.4

Be careful not to get hands or feet tangled inhoses or other back-of-cab equipment. Careless-ness could cause a person to trip and fall, withpossible injury.Entering Back-of-CabWhen climbing onto the deck plate, do the following:1. Grasp the sidewall grab handle with both hands.

Reach up as far as is comfortable.2. Place one foot on the bottom step and pull your-

self up.3. Place your other foot on the top step.4. Move your lower hand to a higher position on the

grab handle.5. Step onto the deck plate.

Climbing Down from Back-of-CabTo climb down from the back-of-cab area:1. Grasp the sidewall grab handle with both hands.2. Step one foot at a time onto the top step.3. Move your upper hand to a lower position on the

grab handle.4. Move one foot to the bottom step.5. Move your upper hand to a lower position on the

grab handle.6. Step to the ground with your upper foot first.

Hood Opening and ClosingA grab handle at the front of the hood provides ahand-hold for hood tilting. Two tilt-assist struts help totilt the hood open, and to return it to the operatingposition. A damper controls the closing rate of thehood and hood straps prevent the hood from over-travel. In the operating position, the hood is securedby a hold-down latch on each side of the hood.

To Tilt the Hood1. Apply the parking brakes.2. Release both hood hold-down latches by pulling

the ends outward.

CAUTIONDo not let the hood free-fall to the full-open posi-tion. To do so could cause damage to the hoodor hood straps.3. Using the bumper step and grab handle, slowly

tilt the hood until the straps support it. SeeFig. 2.8.

To Return the Hood1. Grasp the grab handle, and lift the hood a just-

over-center position.2. As the hood goes over center, the hood damper

controls the rate of descent to the operating posi-tion.

3. Make sure the hood is flush with the cowl, thensecure the hood by engaging both hood hold-down latches.

IMPORTANT: Make sure that both hold-downlatches are fully engaged before operating thevehicle.

03/22/2007 f880788

Fig. 2.8, Hood Tilting

Vehicle Access

2.5

3Electrical System

Electrical Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1Emergency Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3Progressive Low Voltage Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4

Electrical Power DistributionElectrical power distribution provides battery power tothe electrical and electronic systems. See Fig. 3.1 forpower distribution component locations.The following components make up the power distri-bution system:

MEGA Fuse Junction Block (MFJB), EPA07only

Powertrain Power Distribution Module(PT-PDM)

Powernet Distribution Box (PNDB), EPA10 andnewer

Cab Load Disconnect Switch Auxiliary PDM

MEGA Fuse Junction Block, EPA07On EPA07 vehicles, the MFJB distributes batterypower to the alternator, SAM cab, SAM chassis, andpowertrain PDM. Battery power may also be routedto an inverter and a trailer PDM. The MFJB housesup to five MEGA fuses, and is located on the leftframe rail in front of the batteries. See Fig. 3.2.

Powernet Distribution Box, EPA10and NewerThe PNDB distributes battery power to the SAM cab,SAM chassis, powertrain PDM, and other keep-alivecircuits.The PNDB is mounted in the engine compartment onthe frontwall near the steering column. The label onthe PNDB fuse cover identifies typical circuits. SeeFig. 3.3.

Power Distribution ModulesPowertrain PDMThe powertrain PDM contains fuses and relays thatprovide battery and ignition power to the engine, af-tertreatment device, transmission, and otherpowertrain-related circuits. It is mounted in the en-gine compartment, above the driver-side innerfender.

Auxiliary PDMThe optional auxiliary PDM is used when additionalcircuit protection is needed for optional features. Forexample, if a beacon light is added to the Cascadia,it may require an auxiliary PDM. The auxiliary PDMmay contain fuses and relays for these devices. It ismounted in the cab, behind the doghouse cover.

Trailer PDMThe optional trailer PDM, mounted on the frame rail,is used to supply trailer power to the chassis-mounted trailer receptacles. The SAM chassis sup-plies control signals to the relays in the trailer PDM.

SAM CabThe SAM cab is located behind the glove box insidethe vehicle cab. See Fig. 3.4. The SAM cab containsfuses and relays in addition to solid state circuit pro-tection devices that will trip when a circuit is over-loaded.Refer to Chapter 25 for fuse and relay locations.

SAM ChassisThe SAM Chassis is located in the engine compart-ment on the driver-side frontwall. See Fig. 3.3. TheSAM chassis contains fuses and relays in addition tosolid state circuit protection devices that will tripwhen a circuit is overloaded.Refer to Chapter 25 for fuse and relay locations.

Circuit Protection FeaturesThe SAM chassis and SAM cab may be equippedwith self-resetting circuit breakers instead of fuses.Self-resetting circuit breakers are tripped when theyreach 170F (77C), then self-reset once the tem-perature drops sufficiently. When the circuit overloadis removed, this circuit protection will self-reset.Some of these circuits require the ignition switch tobe cycled off then back on again for the self-reset tooccur.

Some ECUs are equipped with a self-resetting circuitbreaker removal tool.

WARNINGAlways wear heat-protective gloves when han-dling a self-resetting circuit breakers, which can

Electrical System

3.1

reach extremely high temperatures. Failure to useappropriate heat protection can lead to seriousinjury.

NOTICESelf-resetting circuit breakers can be perma-nently damaged if improperly handled. Use theguidelines below to handle them safely.

Disconnect the batteries before removing aself-resetting circuit breaker.

Use a circuit breaker removal tool to remove aself-resetting circuit breaker. See Fig. 3.5. Useof any other tool, including pliers, may damagethe circuit breaker.

Never attempt to probe a self-resetting circuitbreaker while installed on the SAM Cab orSAM Chassis. Remove the circuit breaker first,or use a non-contact infrared thermometer tomeasure temperature.

f001175a02/27/2012

2

1

4

9

86

5

3

7

1. SAM Cab2. Powertrain PDM (PT-PDM)3. Powernet Distribution Box (PNDB)4. SAM Chassis5. Main Ground Junction Block

6. MEGA Fuse Junction Block7. Cab Load Disconnect Switch (optional location)8. Cab Load Disconnect Switch (optional location)9. Trailer PDM

Fig. 3.1, Component Locations

Electrical System

3.2

Cab Load Disconnect Switch

WARNINGTurning the cab load disconnect switch (CLDS) tothe off position does not disconnect the connec-tion between the battery and the starter. To workon the vehicle safely, the negative leads must bedisconnected from the battery.IMPORTANT: The ignition should be turned offbefore turning the CLDS to on or off.The CLDS is used to avoid excessive draw on thebattery when the vehicle is parked for an extendedperiod of time by disconnecting (or opening) the con-nection between the battery and the most of the ve-hicle electrical system.The CLDS may be mounted:

inside the cab on the outboard side of the driv-ers seat;

at the battery box; outboard on the left frame rail.

See Fig. 3.6 for an EPA07 CLDS; see Fig. 3.7 for anEPA10 and newer switch.If the CLDS is turned to the off position while the ve-hicle is running, the emergency power system willactivate. The powertrain PDM will receive power fromthe emergency power feed, but the batteries will notbe charging. See the Emergency Power Supplyheading below for details.

Emergency Power SupplyThe Cascadia electrical system has an emergencypower circuit that supplies battery power for exteriorlighting. This assists vehicle visibility in the event aMEGA fuse is open circuit. The emergency powercircuit is live even when the CLDS is turned off.The emergency power supply feature allows for thevehicle to be driven off the highway and for the exte-rior lighting to remain on in the event of a SAM Cabor SAM Chassis failure. The emergency power sup-ply will cause certain exterior lamps to flash (depend-ing on if it is the SAM Cab or SAM Chassis thatfailed), indicating that the vehicle is disabled.

06/15/2007 f545073

1

2

1. MEGA Fuse Junction Block2. Main Ground Junction Block

Fig. 3.2, EPA07 MEGA Fuse Junction Block

02/27/2012 f545682a1

3

2

4

1. Powertrain PDM (PT-PDM)2. Inline Fuse, Auxiliary PDM3. SAM Chassis4. Powernet Distribution Box (PNDB)

Fig. 3.3, Engine Compartment Power DistributionComponents

Electrical System

3.3

SAM Cab FaultIf the emergency power supply system activates, donot shut down the engine until the vehicle is in a safeposition to do so. It will not be able to be restarteduntil the problem is corrected. If emergency powermode is due to a SAM Cab fault, the gauges will be-come unresponsive but the engine will remain run-ning until it is turned off.When the ignition is in the ON position, the emer-gency power supply will cause the following lamps toflash:

dash panel lights clearance lights front marker lights side marker lights trailer taillights rear stop lights

SAM Chassis FaultThe engine may be able to be restarted when theSAM Chassis fails. When the ignition is in the ONposition, the emergency power supply will cause thefollowing lamps to flash:

dash panel lights

identification lights front marker lights turn-signal indicators in the ICU (alternately) side marker lights rear turn-signal lights trailer taillights

If the ignition switch is turned ON while the load dis-connect switch is in the OFF position, the emergencypower supply feature will activate the followinglamps:

clearance lights (flashing) side marker lamps (flashing) low beam headlights

Progressive Low VoltageDisconnectThe progressive low voltage disconnect (PLVD) fea-ture protects the batteries from excessive dischargeby disconnecting certain circuits from battery powersupply. This allows the batteries to maintain accept-able charge to restart the vehicle.When battery voltage drops below a predeterminedvalue, loads designated as comfort loads (priority

f54494502/07/2007

Fig. 3.4, SAM Cab Location

Electrical System

3.4

level I) are shut down first. Then loads designated ashouse loads (priority level II) are shut down. If neces-sary, basic loads (priority level III) are shut down last.PLVD allows the driver to continue using criticalloads, while noncritical loads are temporarily unavail-able. Calculations for disconnecting loads are basedon battery voltage, ignition switch status, and enginerpm. Also, a time delay is implemented for the shut-down and reactivation of loads to avoid unnecessarycycling of loads when battery voltage is close toshutdown thresholds.One minute before the comfort loads or house loadsare shut down, the alarm in the instrument cluster

beeps. No alarm sounds before basic loads are shutdown.If the interior lights have been shut down by PLVD,pressing one of the interior light switches (ifequipped) brings the interior lights back on.See Table 3.1 for the type of loads shut down underspecific conditions.See Table 3.2 for the loads that are designated com-fort, house, and basic load status.

Type of Loads Shut Down Under Specific Conditions

Key Switch Position Engine On, Voltage less than12.5 VoltsEngine Off, Voltage less than

12.3 VoltsEngine Off, Voltage less than

12.1 VoltsOff N/A Priority level I, II loads Priority level I, II, and III loads

Accessory N/A Priority Level I loads Priority level I, II loads

02/20/2012 f545876

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2

1. Circuit BreakerRemoval Tool

2. Self-Resetting CircuitBreaker

Fig. 3.5, Self-Resetting Circuit Breaker Removal

06/19/2007 f545071

Fig. 3.6, Cab Load Disconnect Switch, EPA07

05/13/2009 f545527

Fig. 3.7, Cab Load Disconnect Switch, EPA10 andNewer

Electrical System

3.5

Type of Loads Shut Down Under Specific Conditions

Key Switch Position Engine On, Voltage less than12.5 VoltsEngine Off, Voltage less than

12.3 VoltsEngine Off, Voltage less than

12.1 VoltsOn Priority level I loads Priority Level I loads Priority level I, II loads

Start N/A N/A N/ATable 3.1, Type of Loads Shut Down Under Specific Conditions

Designated LoadsType of Load Function

Priority Level I

12V power receptacle 6 (sleeper, refrigerator)Amplifier power, accessoryGeneral sleeper lightFoot well lightReading light 1 (dimmer/theater)Reading light 2 (dimmer/theater)Rear baggage compartment light12V power receptacle 5 (sleeper, cigar), batteryAuxiliary circulation fan-sleeper, battery12V power receptacle 4 (sleeper, cigar), batteryReading light 4 (switched locally), battery

Priority Level II

Heated seats, ignition*Sleeper HVAC controller, accessory*Cabin HVAC controller, accessory*Radio, accessory (clamp 15R)Power feed spare output I, batteryPower feed spare output III, batteryMirror heating, passenger*Mirror heating, driver*Power feed spare output IV, batteryPower feed spare output II, batteryFuel/water separator heater element, ignition*Air dryer (pneumatic, electrically heated), accessory*Auxiliary circulation fan-windshield, accessory*Accessory heater powerUtility lightUtility lightDome light rearArea lighting (lower bunk and sleeper work surface),batteryDome light cab, batteryOverhead compartment lights, battery12V power receptacle 3 (sleeper, cigar), batteryStand-alone HVAC, batteryAdvertising light, accessory*Dome light passengerDome light driver/forward overhead

Electrical System

3.6

Designated LoadsType of Load Function

Priority Level III

CB radio, batteryFleet management system, batteryTrailer power, battery or ignition12V power receptacle 2 (dash, phone), battery12V power receptacle 1 (dash, cigar), battery

* When the vehicle has Optimized Idle, these functions will not operate with the ignition switch in the accessoryposition. Optimized Idle may also turn these functions off to reduce stress on the batteries. Refer to the Opti-mized Idle section in Chapter 11 for more information. May or may not shut down depending on how an additional parameter is set at the factory or dealership.

Table 3.2, Load Designation

Electrical System

3.7

4Instruments

Instrumentation Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1Warning and Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8Driver Message Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11Overhead Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.24

Instrumentation Control UnitsThe instrumentation control unit (ICU) provides thedriver with engine and vehicle information. It is com-prised of standard and optional gauges, an audiblewarning, a driver message center, and a lightbar con-taining warning and indicator lamps (also known astelltales). Warning and indicator lamps illuminate inred (danger), amber (caution), green (status advi-sory), or blue (high-beam headlights active).Cascadia vehicles are equipped with an ICU3, ICU4,ICU4M, or ICU4Me. See Fig. 4.1, Fig. 4.2, andFig. 4.3 for typical ICU layouts.The following headings in this chapter provide addi-tional information and operating instructions for ICUcomponents:

"Warning and Indicator Lights" "Instruments"

"Driver Message Center"

Ignition SequenceWhen the ignition is turned on, the ICU runs a self-check. See Fig. 4.4. Observing the ignition sequenceis a good way to ensure the ICU is functioning prop-erly.IMPORTANT: Do not crank the engine until theICU self-check is complete.NOTE: Air gauges do not complete a sweep oftheir dials during the ignition sequence.When the ignition is turned on, the following actionsshould occur:

electronic gauges complete a full sweep oftheir dials

09/10/2009 f610864a

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2

3

4

5

6

7

89

13

10

11

12

1. Transmission Temperature Gauge2. Coolant Temperature Gauge3. Engine Oil Pressure Gauge4. Driver Message Center5. Fuel/DEF Level Gauge

6. Primary Air Pressure Gauge7. Secondary Air Pressure Gauge8. Speedometer9. Tachometer

10. High Beam Indicator11. Driver Display Screen12. Mode/Reset Switch13. Satellite Gauges

Fig. 4.1, ICU3 Instrument Cluster (EPA10 shown)

Instruments

4.1

warning and indicator lamps illuminate, thenare extinguished

audible alert sounds for approximately fourseconds or until sufficient air pressure buildsup in the primary and secondary air systems

DEF level indicator illuminates all segmentsgreen, then turns them off one at a time beforeturning the leftmost segment amber and thenred

Freightliner logo displays on the ICU4Me drivermessage center for two seconds.

software revision level of the ICU is displayedon the driver message center, followed by anyactive faults

IMPORTANT: If any red or amber warning andindicator lamps do not illuminate during the ICUself-check or do not go out after the self-checkcompletes, take the action outlined in Table 4.1,or take the vehicle to an authorized Freightlinerservice facility as soon as possible.

NOTE: If active faults are present, take the ve-hicle to an authorized Freightliner service facilityas soon as possible.If the ICU receives active fault codes, it displaysthem one after the other until the parking brake isreleased or the ignition is turned off. Once the park-ing brake is completely released, the ICU displaysthe odometer. If there are no active faults, the ICUdisplays the odometer after the self-check completes.When the self-check is complete on an ICU4M, thefasten seat belt screen displays if the engine is off. Ifthe engine is running, the idle hours screen displays.

Audible AlertsAn audible alert sounds during the ignition sequenceand whenever one of the following conditions exists:

Engine oil pressure falls below the minimumpreset value.

Coolant temperature rises above the maximumpreset value.

f610865b

1

3 4

5 6

7

8 9

10

11 12

13 14

2

09/10/2009NOTE: The ICU4 and ICU4M are nearly identical, with the exception of the driver message center (Item 7).1. Battery Voltage Gauge2. Lightbar3. Engine Oil Pressure Gauge4. Coolant Temperature Gauge5. Engine Oil Temperature Gauge

6. Turbo Boost Air Pressure Gauge7. Driver Message Center8. Tachometer9. Speedometer10. Primary Air Pressure Gauge

11. Fuel/DEF Level Gauge12. Secondary Air Pressure Gauge13. Pyrometer14. Rear Axle Temperature Gauge

Fig. 4.2, ICU4M Instrument Cluster (EPA10 shown)

Instruments

4.2

Air pressure falls below approximately 70 psi(483 kPa).

Parking brake is set with the vehicle movingfaster than two miles per hour.

System voltage falls below 11.9 volts. Door is open or the headlights are on, with the

parking brake off. Driver seat belt is not fastened with the parking

brake off (optional). Outside temperature falls below 35F (1.7C)

(optional).

Warning and Indicator LightsThe ICU lightbar has three or four rows of warningand indicator lights with icon symbols, depending onthe ICU. The positions of the lights may vary for thedifferent ICUs, but the telltales are standard for allapplications. See Table 4.1 for a listing of standardand commonly used warning and indicator lamps.

06/27/2012 f611164

1

2

3

4 5 6

7

8

9

10

1. Engine Oil Temperature Gauge2. Front Axle Temperature Gauge3. Rear Axle Temperature Gauge4. Speedometer and Coolant

Temperature Gauge

5. Fuel/DEF Level Gauge6. Tachometer and Engine Oil

Pressure Gauge7. Primary Air Pressure Gauge

8. Secondary Air Pressure Gauge9. Transmission Oil Temperature

Gauge10. Driver Message Center

Fig. 4.3, ICU4Me Instrument Cluster

IGNITION SWITCH

PARKING BRAKERELEASED

IF NO FAULTSWERE DETECTED

IF FAULT DETECTED

APU 190123456.712.3 VOLTS

123456.712.3 VOLTS

MI

MI

01/18/2012 f040420c

PARKING BRAKERELEASED

TURNED TO ON

ICU PERFORMSSELFTEST

Fig. 4.4, ICU Ignition Sequence

Instruments

4.3

Warning and indicator lamps illuminate in red (dan-ger), amber (caution), green (status advisory), orblue (high-beam headlights active).IMPORTANT: Depending upon local jurisdic-tional emissions guidelines, vehicles and/or en-

gines that are domiciled outside of the U.S. andCanada may not be compliant with EPA07,EPA10, or GHG14 regulations. Noncompliantvehicles may not be equipped with all of thelamps shown in Table 4.1.

Common Warning and Indicator LampsLamp Description Color

STOP STOP Engine*

Indicates a serious fault that requires engine shutdownimmediately. The engine protection system will reduce themaximum engine torque and speed, and, if the conditiondoes not improve, will shut down the engine within 30 to 60seconds.

Safely bring the vehicle to a stop on the side of the roadand shut down the engine as soon as the red light is seen.If the engine shuts down while the vehicle is in ahazardous location, turn the key to the OFF position fora few seconds, then restart the engine and move thevehicle to a safer location.

Red

High Coolant Temperature Indicates the coolant temperature is above the maximumallowable temperature.

Low Air Pressure (EPA07) Indicates air pressure in the primary or secondary reservoirhas dropped below approximately 70 psi (483 kPa).

Low Air Pressure (EPA10and Newer)

Indicates air pressure in the primary or secondary reservoirhas dropped below approximately 70 psi (483 kPa).

Low Engine Oil Pressure Indicates the engine oil pressure is below the minimumallowable pressure.

Transmission Overheat Indicates high transmission temperature.

BRAKEParking Brake (EPA07)

Indicates the parking brake is engaged, or hydraulic brakefluid pressure is low. An audible alert activates when thevehicle is moving over 2 mph (3 km/h) with the parkingbrake set.

Parking Brake (EPA10and Newer) Indicates the parking brake is engaged.

Low Battery Voltage Indicates that battery voltage is 11.9 volts or less.

Unfastened Seat Belt

Activates with an audible alert when the system detects thatthe parking brake is off and the driver seat belt is notfastened on some vehicles. On other vehicles, this lampilluminates for 15 seconds when the ignition is first turnedon.

Instruments

4.4

Common Warning and Indicator LampsLamp Description Color

CHECK CHECK Engine*

Indicates an engine condition (low oil pressure, low coolantlevel, high coolant temperature, high DPF soot level, oruncontrolled DPF regeneration) that requires correction.Correct the condition as soon as possible. If the conditionworsens, the STOP engine lamp will illuminate.

Amber

High Exhaust SystemTemperature (HEST)*

Slow (10-second) flashing indicates a regeneration (regen)is in progress.IMPORTANT: When the HEST lamp is illuminated, donot park the vehicle near flammable material.

Solid illumination indicates high exhaust temperatures at theoutlet of the tail pipe when speed is below 5 mph (8 km/h).

Diesel Particulate Filter(DPF) Status

Solid illumination indicates a regen is required. Change to amore challenging duty cycle (such as highway driving ) toraise exhaust temperatures for at least twenty minutes, orperform a parked regen.Blinking indicates that a parked regen is requiredimmediately. An engine derate and shutdown will occur.

Malfunction IndicatorLamp (MIL)

Indicates an emissions-related fault. See the engineoperation manual for details.

Vehicle ABS

Momentary illumination indicates the vehicle ABS isengaged.Solid illumination indicates a problem with the vehicle ABS.Repair the ABS immediately to ensure full brakingcapability.

Trailer ABS

Momentary illumination indicates the trailer ABS is engaged.Solid illumination indicates a problem with the trailer ABS.Repair the ABS immediately to ensure full brakingcapability.

NOCHARGE No Charge

Indicates the alternator is not properly powering theelectrical system.

Water in Fuel Indicates the fuel may contain water. Drain any watercollected in the fuel/water separators.

Fuel Filter Restriction Indicates the fuel filter is clogged and requires service.

IDLEMGMT Optimized Idle Indicates optimized idle is enabled.

Check Transmission Indicates an undesirable transmission condition.

Instruments

4.5

Common Warning and Indicator LampsLamp Description Color

WAITTO START

Wait To Start (EPA07/EPA10)

Indicates that the system is preventing the starter fromcranking. This can occur when the ignition switch is turnedto START before the gauge sweep has completed, or if thestarter has overheated.

Turn the ignition switch back to ON, wait for the lamp to goout, then turn the ignition switch to START again.

Amber

STARTBLOCKED Start Blocked (GHG14)

Indicates that the system is preventing the starter fromcranking. This can occur when the ignition switch is turnedto START before the gauge sweep has completed, or if thestarter has overheated.

NOTE: Illumination of the Start Blocked lamp does notindicate a problem with the starter.

Turn the ignition switch back to ON, wait for the lamp to goout, then turn the ignition switch to START again.

WHEELSPIN Wheel Spin

Flashing indicates the ATC system is active, or the ATCbutton has been pressed to allow wheel slip.

Solid illumination indicates a problem with the ATC system.Repair the ATC system immediately to ensure full brakingcapability.

Roll Stability

Momentary illumination indicates that a stability event hasoccurred.

On vehicles that are also equipped with ATC, flashingindicates the ATC button has been pressed to allow wheelslip.

Hill Start Aid (HSA)Override

Indicates the HSA switch has been pressed to override thehill start assist feature.

Engine Brake Indicates the engine brake is enabled.

Green

Left-Turn Signal Flashing indicates the outside left-turn signal lights areactivated.

Right-Turn Signal Flashing indicates the outside right-turn signal lights areactivated.

Cruise ControlIndicates the cruise control is enabled.

NOTE: The ICU4Me does not have a green cruise controltelltale.

High-Beam Headlights Indicates the high-beam headlights are on. Blue

* See Fig. 4.5 for an explanation of the aftertreatment system (ATS) warning indicators, and actions required to avoid further engine protection steps.Table 4.1, Common Warning and Indicator Lamps

Instruments

4.6

Engine Protection System

WARNINGWhen the red STOP engine lamp illuminates,most engines are programmed to shut down au-tomatically within 30 seconds. The driver mustimmediately move the vehicle to a safe locationat the side of the road to prevent causing a haz-ardous situation that could cause bodily injury,property damage, or severe damage to the en-gine.See Fig. 4.5 for an explanation of the aftertreatmentsystem (ATS) warning indicators, and actions re-quired to avoid further engine protection steps.The STOP engine lamp illuminates when the engineprotection system is activated in one of two ways. Onsome engines, the engine protection system will der-ate the engine, allowing it to run at lower rpm andslower vehicle speed. Drive the vehicle to a safe lo-cation or to a service facility.

IMPORTANT: Safely bring the vehicle to a stopon the side of the road and shut down the en-gine as soon as the red light is seen. If the en-gine shuts down while the vehicle is in a haz-ardous location, turn the key to the OFF positionfor a few seconds, then restart the engine andmove the vehicle to a safer location.On other engines, the engine protection system willshut down the engine. It will first derate the engine,then shut it down completely 30 to 60 seconds afterthe indicator illuminates (depending on the criticalfault type) if the condition does not improve. Bringthe vehicle to a stop on the side of the road beforethe engine shuts down.Some vehicles may have a shutdown-overrideswitch, which may be used to momentarily overridethe shutdown sequence. See Chapter 11 for detailedinformation regarding the shutdown process.IMPORTANT: Do not attempt to restart the en-gine while the vehicle is moving. Bring the ve-hicle to a safe stop, then restart the engine.To restart the engine, turn the ignition to OFF, leaveit there a few seconds, then turn the ignition to

f080156

EXHAUST AFTERTREATMENT SYSTEM INFORMATION

Switch.

Level 1 Level 3Level 2 Level 4Filter RegenerationRecommended.

Filter is reaching

Bring vehicle tohighway speeds to

Filter Regeneration

Filter is nowreaching maximumcapacity.To avoid enginederate, bring vehicle

Parked RegenerationRequired EngineDerateFilter has reachedmaximum capacity.

Vehicle must beparked, and a Parked

Service Regeneration Required.Engine Derate To Idle Only.

Filter has exceeded maximumcapacity.

Vehicle must be parked, and aService Regeneration must be

(Solid) (Flashing) (Flashing)CHECK

INDICATORLAMP(S)

Indicator LampMessage(s)

Diesel ParticulateFilter Condition

Required Action

capacity.

STOP

allow for an AutomaticRegeneration orperform a Parked

to highway speedsto allow for anAutomaticRegeneration, orperform a ParkedRegeneration assoon as possible.

Regeneration mustbe performed.Engine will beginderate.

performed. Check engineoperators manual for details.Engine will shut down.

For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.

02/20/2009

WARNING

HEST (High ExhaustSystem Temperature)

Exhaust componentsand exhaust gas are athigh temperature. Whenstationary, keep awayfrom people andflammable materials orvapors.

A regeneration is inprogress.

Flashing

Solid

Regeneration.

Necessary

Fig. 4.5, ATS Warning Lamps

Instruments

4.7

START. The engine will run for a short period andshut down again if the condition does not improve.

InstrumentsStandard instruments are present on every vehicle.They are listed here in alphabetical order to makethe information easier to find.Optional instruments, typically located on the auxil-iary dash panel or right-hand control panel, are notfound on every vehicle. They are listed here in alpha-betical order, to make the information easier to find.

Air Intake Restriction GaugeThe air intake restriction gauge indicates the vacuumon the engine side of the air cleaner. On standardinstallations, it is mounted on the air intake duct inthe engine compartment. As an option for easierviewing, the air intake restriction indicator (seeFig. 4.6) can be mounted on the dash, usually on theright-hand control panel.

NOTE: Rain or snow can wet the filter andcause a temporary high reading.Air intake restriction vacuum is measured in inchesof water (inH2O). For vehicles equipped with agraduated indicator or a restriction gauge on thedash, check the gauge with the engine off. If the yel-low signal stays locked in the red zone once the en-

gine is shut down, or is at or above the valuesshown in Table 4.2, the air cleaner element needs tobe replaced.Vehicles may be equipped with a go/no-go restrictionindicator without graduations (see Fig. 4.7) instead ofa graduated indicator.

Air Intake Maximum Restriction Values (inH2O)Engine Make Pre-EPA07Engines

EPA07 andNewer Engines

Cummins 25 25Detroit 20 22Mercedes-Benz 22 22

Table 4.2, Air Intake Maximum Restriction Values

Application Air Pressure GaugeAn application air pressure gauge registers the airpressure being used to apply the brakes, and shouldbe used for reference only. The gauge will not regis-ter air pressure until the foot brake pedal is de-pressed or the trailer hand brake is applied.

Coolant Temperature Gauge

NOTICEA sudden increase in coolant temperature mayindicate engine or cooling system failure. Bringthe vehicle to a safe stop and investigate thecause to prevent further damage. Do not operatethe engine until the cause has been determinedand corrected.

10/10/2001 f610568

Fig. 4.6, Air Intake Restriction Indicator

04/08/2005 f090431

Fig. 4.7, Manual-Reset Air Restriction Indicator, Go/No-Go

Instruments

4.8

During normal engine operation, the coolant tem-perature gauge should read 175 to 195F (79 to91C). If the temperature remains below 160F(71C), inspect the cooling system to determine thecause.

If coolant temperature rises above the maximumtemperature listed in Table 4.3, the CHECK enginelamp will illuminate. If the condition does not im-prove, the STOP engine lamp will also illuminate andan audible warning will sound. The engine will thenderate or shut down, depending on the type of en-gine protection system installed.

Maximum Coolant TemperatureEngine Make Temperature: F (C)

Cummins 225 (107)Detroit 215 (101)Mercedes-Benz 221 (105)

Table 4.3, Maximum Coolant Temperature

Drive Axle Oil Temperature Gauges

NOTICEA sudden increase in oil temperature that is notcaused by a load increase may indicate mechani-cal failure. Bring the vehicle to a safe stop andinvestigate the cause to prevent further damage.Do not operate the vehicle until the cause hasbeen determined and corrected.During normal operation, forward-rear and rear-rearaxle oil temperature gauges should read between:

160 to 220F (71 to 104C) for Meritor driveaxles;

180 to 200F (82 to 93C) for Dana Spicerdrive axles.

Under heavy loads, such as when climbing steepgrades, temperatures that exceed the normal oil tem-perature range for a short period are not unusual. Ifthe temperature returns to normal when the load de-creases, there is no problem.

Engine Oil Pressure Gauge

NOTICEA sudden decrease or absence of oil pressuremay indicate mechanical failure. Bring the vehicleto a safe stop and investigate the cause to pre-vent further damage. Do not operate the engineuntil the cause has been determined and cor-rected.The engine oil pressure gauge displays the currentengine oil pressure. If engine oil pressure falls belowthe minimum levels shown in Table 4.4, the CHECKengine lamp will illuminate. If the condition does notimprove, the STOP engine lamp will also illuminateand an audible warning will sound. The engine willthen derate or shut down, depending on the type ofengine protection system installed.

Minimum Oil Pressure*

Engine Model At Idle Speed:psi (kPa)At Rated RPM:

psi (kPa)Cummins 15 (103) 35 (241)Detroit 14 (97) 55 (350)Mercedes-Benz 7 (50) 36 (250)* Oil pressures are given with the engine at operating temperature. With

the engine cold, oil pressure may be higher. Individual engines may varyfrom the listed pressures; observe and record pressures when the engineis new to create a guide for checking engine condition.

Table 4.4, Minimum Engine Oil Pressure

Engine Oil Temperature Gauge

NOTICEA sudden increase in oil temperature that is notcaused by a load increase may indicate mechani-cal failure. Bring the vehicle to a safe stop andinvestigate the cause to prevent further damage.Do not operate the engine until the cause hasbeen determined and corrected.During normal operation, the optional engine oil tem-perature gauge should read:

200 to 260F (93 to 126C) for Detroit andCummins engines

177 to 203F (81 to 95C) for Mercedes-Benzengines

Instruments

4.9

Under heavy loads, such as when climbing steepgrades, temperatures that exceed the normal oil tem-perature range for a short period are not unusual. Ifthe temperature returns to normal when the load de-creases, there is no problem.

Fuel Gauge, Pre-EPA10The fuel gauge indicates the level of fuel in the fueltank(s). A single fuel gauge is standard. If equippedwith an optional second fuel tank, each fuel tanklevel is indicated on a separate gauge.

Fuel/Diesel Exhaust Fluid (DEF)Gauge, EPA10 and NewerFor engines that are EPA10-compliant or newer, thefuel and DEF levels are measured in a dual purposefuel/DEF level gauge. See Fig. 4.8.

The diesel fuel level is indicated at the top of thegauge, with a low-fuel warning lamp that illuminatesamber when the diesel fuel level registers 1/8th ofcapacity.The DEF level is indicated in the lightbar on thelower portion of the gauge. There is a low DEF levelwarning lamp that illuminates amber when the DEFlevel reaches 10% of capacity. See Chapter 12 fordetails of the DEF gauge functions.

Primary and Secondary Air PressureGauges

WARNINGIf air pressure falls below minimum pressure, thebraking ability of the vehicle will be limited. Slowthe vehicle down and bring it to a gradual stop.Do not attempt to move the vehicle until air pres-sure has risen above the minimum level. Movinga vehicle without adequate braking power couldcause an accident resulting in personal injury ordeath.Air pressure gauges register the pressure in the pri-mary and secondary air systems. Normal pressure,with the engine running, is 100 to 120 psi (689 to827 kPa) in both systems.A low-air-pressure warning light and audible alert,connected to both the primary and secondary sys-tems, activate when air pressure in either systemdrops below approximately 70 psi (483 kPa).When the engine is started, the warning light andaudible warning remain on until air pressure in bothsystems exceeds minimum pressure.

SpeedometerTwo speedometer options are available. The U.S.version of the speedometer registers speed in bothmiles per hour (mph) and kilometers per hour (km/h),with mph in larger numbers. The metric version ofthe speedometer face reverses this arrangement,with km/h in larger numbers.

TachometerThe tachometer indicates engine speed in revolutionsper minute (rpm) and serves as a guide for shiftingthe transmission and keeping the engine in the ap-propriate rpm range. For low idle and rated rpm, seethe engine identification plate.

Transmission Fluid TemperatureGaugeThe transmission fluid temperature gauge indicatesthe transmission lubricant operating temperature.Temperatures vary by application, but the transmis-sion fluid temperature gauge reading should not ex-ceed 250F (121C).

08/21/2009

1/2ULTRA LOW SULFURDIESEL FUEL ONLY

E FDEF

FE

f611045

1

23

4

1. Diesel Fuel Level Indicator2. DEF Level Indicator3. Low DEF Warning Lamp (amber below 10% DEF)4. Low Fuel Warning Lamp (amber at 1/8 tank of fuel)

Fig. 4.8, Fuel/DEF Gauge, EPA10 and Newer

Instruments

4.10

NOTICEA sudden increase in transmission fluid tempera-ture that is not caused by a load increase mayindicate mechanical failure. Bring the vehicle to asafe stop and investigate the cause to preventfurther damage. Do not operate the vehicle untilthe cause has been determined and corrected.Under heavy loads, such as when climbing steepgrades, temperatures that exceed the normal oil tem-perature range for a short period are not unusual. Ifthe temperature returns to normal when the load de-creases, there is no problem.

Turbocharger Boost Pressure GaugeA turbocharger boost pressure gauge indicates thepressure in the intake manifold, in excess of atmos-pheric pressure, being created by the turbocharger.

VoltmeterThe voltmeter indicates the vehicle charging systemvoltage when the engine is running and the batteryvoltage when the engine is off. By monitoring thevoltmeter, the driver can stay aware of potential bat-tery charging problems and have them fixed beforethe batteries discharge enough to create starting diffi-culties. Cascadia vehicles are equipped with either avoltmeter gauge, or a digital voltmeter readout lo-cated on the bottom line of the dash message center.The voltmeter will normally show approximately 13.7to 14.1 volts when the engine is running. The voltageof a fully charged battery is 12.7 to 12.8 volts whenthe engine is off. Battery voltage under 12.0 volts isconsidered a low battery, and a completely dis-charged battery will produce only about 11.0 volts.If the voltmeter shows an undercharged or over-charged condition for an extended period, have thecharging system and batteries checked at an autho-rized Freightliner service facility.On a vehicle equipped with a battery isolator system,the voltmeter measures the average voltage of all thebatteries when the engine is running. When the en-gine is off, the voltmeter shows only the isolated bat-tery voltage and does not indicate the voltage of theengine-starting batteries.

Driver Message CenterICU3/ICU4The driver message center is controlled using themode/reset switch, located on the right side of theICU, and the + and buttons mounted in the right-hand pod of the steering wheel (Fig. 4.9). SeeFig. 4.1 and Fig. 4.9. Tap the mode/reset switch orthe + switch to advance one screen; press and holdeither switch to select a menu choice or reset thedisplay. When the display resets, an audible chirpsounds.

Four driving screens are accessible when the parkingbrake is off. All screens and menus are accessiblewhen the parking brake is on (parked screens).Driving ScreensThe following screens are available when the parkingbrake is off (when the vehicle is mobile) and no ac-tive fault codes are found. Use the + and switcheson the steering wheel, or the mode/reset switch, toscroll through the screens. To reset any values,press and hold the + switch or the mode/resetswitch. The driving screens appear in the followingorder:i. Odometerii. Trip distance

MRKRINT

ENGBRK

+

02/06/2007 f462061

NOTE: To reset values in the ICU4M and ICU4Me drivermessage centers, press and hold the + switch.

Fig. 4.9, Steering Wheel-Mounted Switches

Instruments

4.11

iii. Trip hoursiv. Outside temperature

Parked Screens/MenusThe following screens and menus are available whenthe parking brake is on (when the vehicle is parked)and no active fault codes are found. Use the + and switches on the steering wheel, or the mode/resetswitch, to scroll through the driving screens. To resetany values, press and hold the + switch or the mode/reset switch. See Fig. 4.10. The parked screens ap-pear in the following order:i. Odometerii. Trip distanceiii. Trip hoursiv. Outside temperaturev. Temperature alert

vi. Diagnosticsvii. Clear screen (on vehicles with less than 255

miles on the odometer)viii. Engine miles/hoursix. Setup

Temperature AlertWhen the outside temperature drops to 35F (1.7C)or less, the ICU displays a caution text at one-second intervals for five seconds, and an audiblealert sounds. Tap the + or switch on the steeringwheel, or the mode/reset switch, to acknowledge themessage. The audible alert will not sound again un-less the temperature cycles above 37F (4C) andback to 35F (1.7C) or less. This warning only oc-curs while the ignition is on and the parking brake isreleased.

01/30/2012 f040754

123456.7TRIP MI 12.3 VOLTS

Tap

123456.7MI 12.3 VOLTS

Tap

123456.7TRIP HOURS

12.3 VOLTS

ALrt

n

123456.7HOURS

ENGINE

oiL *Lo

SEtUP **MI **HOURS**no

To reset trip miles

Press & Hold

To reset trip hours

Press & Hold

Display serviceinterval screensPress & Hold

Press & Hold

Tap

To toggle ON

*Lo = Oil Level LowHI = Oil Level HighBlank = Oil Level OK = No Message

**MI = Miles Interval Mode**HOURS = Hours Interval Mode**no = Service Interval Inactive

dIAGMI HOURS

n

Display diagnostics

Press & Hold

n = Number of Active Fault CodesMI = Miles Interval ModeHOURS = Hours Interval Mode

t

ENGINE

Tap

Tap

Tap

Tap

Tap

Tap

12.3 VOLTS

56F

OFF

Odometer

To display totalengine miles/hours

Note: The engine oil level screen displays for Mercedes-Benz engines only (if equipped and enabled).Fig. 4.10, ICU3 Parked Screens

Instruments

4.12

The temperature alert message allows the driver toenable or disable the ambient temperature warning.Press and hold the mode/reset switch to toggle be-tween on and off. Release the mode/reset switch,then tap it to select the displayed choice.

DiagnosticsWhen the DIAG screen is displayed, press and holdthe mode/reset switch to access the various diagnos-tic screens. See Fig. 4.11 for a diagram of the diag-nostic screens.

The diagnostic screens are used by trained techni-cians to retrieve fault codes and other diagnostic in-formation pertaining to the vehicle. If active faultcodes display during start-up or at any other time,make a note of the fault code and take the vehicle toan authorized Freightliner service facilityIf fault codes are displayed, press and hold themode/reset switch to view the next fault code untilreaching the DIAG screen.

f040802

From Temp Alert Screen

Press & Hold

Tap

Press & Hold

Tap

Press & Hold

Tap

n = Number ofActive Fault Codes

dlAG

n

*FAULT

01

*If fault goes inactive,display "noFault 1"

*FAULT

nn

*If fault goes inactive,display "noFault n"

To Setup Screen (or OilLevel Screen, if equipped)

Press & HoldAbS 11 ECU 0

Tap Tap

Press & Hold123456

Tap Tap

Press & HoldFAIL 03 FAIL 00

Tap Tap

SPN SPN

123456

01/31/2012

Fig. 4.11, ICU4 Diagnostic Screens

Instruments

4.13

Engine Miles/HoursWhen the engine miles/hours screen is displayed,press and hold the mode/reset switch to access theengines screen submenu. See Fig. 4.11 for a dia-gram of the engine screens.

SetupThe setup menu allows the driver to manage ICUparameters. The setup screen submenu allows thedriver to enable and change service intervals. SeeFig. 4.12.

Selection?

To toggle MIHOURSno

NOTE:* Flash screen text**Display active mode

Select NOto disableService Intervals

Press & Hold to reset allService Interval counters

To toggleMI

To toggle

Tap

To toggleON

HRSMI

no

Tap

TapTap

Tap Tap Tap

Tap

Tap

TapTap

Press & Hold

Press & Hold

Press & Hold

Press & Hold

Press & Hold Press & Hold Press & Hold

Press & HoldPress & Hold

Press & Hold

SET UP SELECT*MI

SET UP

WARNT

*on

LCD LMP

*on

**MI **HOURS**no

RESET**MI **HOURS

*no

SELECT*MI *HOURS

*noSERVICE SERVICE SERVICE

*12345MI

SERVICE

*12345HOURS

SERVICE

RESET

EE

DONE

f04075501/30/2012

OFF

KM

ON OFF

To Odometer

From EngineMiles/Hours Screen

Fig. 4.12, ICU4 Setup Screens

Instruments

4.14

If service intervals are enabled and service distanceor time has been exceeded, the text SERVICEHOUR/MI (KM) will display at start-up to indicate ve-hicle service is required.For each parameter, press and hold the mode/resetswitch to navigate to the parameter change screen.In each change screen, tap the mode/reset switch totoggle between options.Use the last screen in the setup menu, RESET EE,to reset the parameters the ICU learns back to thedefault settings. Press and hold the mode/resetswitch to reset the following learned parameters:

automated transmission display seat belt switch learning engine oil level other electronic devices that have been re-

moved from the vehicle (e.g. Qualcomm)ICU4MFunctionsICU4M settings and the driver message center arecontrolled with the + and switches and the MYINFO switch, mounted on the dash. See Fig. 4.13.Tap the MY INFO switch to drill down from eachmain screen to the submenus contained within it.Use the + and switches to scroll through screensand select options. Tap the MY INFO switch again toexit each change screen.

With the parking brake off, only the odometer andalert messages can be displayed. Park the vehicle

and set the parking brake to access the parkedscreens and menus.

Alert MessagesThe driver message center displays alert messageswhen certain conditions occur. They are warnings,cautions, or other messages that require the driversattention, but not all of them are critical to the opera-tion of the vehicle.NOTE: If there is more than one alert messageto display, tap the + switch or the MY INFOswitch to access the next message, and so on,until all messages have been viewed.More important messages take priority over less im-portant messages. The order of priority is:1. parking brake set (with the vehicle moving)2. parking brake off (with the door open)3. low oil pressure or high coolant temperature4. hard brake warnings (if equipped with roll stabil-

ity advisor)5. low battery voltage6. ambient temperature below 35F (1.7C)7. turn signal on8. incoming instant or Qualcomm messages9. service warnings10. no datalink activity

Incoming MessageOn vehicles with a Qualcomm onboard communica-tions system, a notification appears on the drivermessage center whenever a message is received.NOTE: The incoming message screen also dis-plays during the ignition sequence if a messageis available.This message displays for a preset time period, thenreturns after a preset interval until it is dismissed bythe + and switches or the MY INFO switch.

Parking Brake OnThis warning message and an audible warning comeon whenever the parking brake is applied and thevehicle is moving faster than 2 mph (3 km/h). SeeFig. 4.14. The screen and audible warning go away

02/22/2007

MYINFO

f610887a

Fig. 4.13, MY INFO Switch

Instruments

4.15

only when the parking brake is released, or speed isreduced below 2 mph.

Low Oil PressureThis warning message and an audible warning comeon whenever the oil pressure falls below the mini-mum oil pressure, whether the vehicle is idling or inmotion. Tap the + and switches or the MY INFOswitch to dismiss the message.If low oil pressure is detected during the ignition se-quence, it displays as an active fault instead of analert message. After 30 seconds, the message dis-plays again.

High Coolant TempThis message and an audible warning come onwhenever the engine coolant temperature exceedsthe maximum allowable temperature.If high coolant temperature is detected during theignition sequence, it displays as an active fault in-stead of an alert message. After 30 seconds, themessage displays again.

Low VoltageOn some vehicles, this optional message and an au-dible warning come on whenever a low voltage con-dition is detected.

Turn Signal OnThis warning message and audible warning come onwhenever the turn signal remains on for four minutesor five miles of travel. To dismiss this message, ei-ther turn off the turn signal or tap the + and switches or the MY INFO switch.

Air TemperatureWhen the outside air temperature drops below 35F(1.7C), a warning text is displayed at one-secondintervals for five seconds, and an audible warning will

sound. Tap the + and switches or the MY INFOswitch to acknowledge the warning. The alert mes-sage will not occur again unless the temperaturecycles above 37F (4C) and back below 35F(1.7C). This warning only occurs while the ignition ison and the parking brake is off.

Service WarningsService warning alerts display during the ignition se-quence and indicate if a service interval has beenreached or exceeded and maintenance is required.The messages may indicate the number of miles(KM) or hours until the next required service or, oncepassed, the number of miles (KM) or hours sincemaintenance should have been performed.

Automated Transmission DisplayThe ICU4M can display current gear information forvehicles with an automated transmission. The lastthree digits at the far right on the lower line of thedriver message center are reserved for this informa-tion.When a shift request is made by the driver, an up ordown arrow is also displayed, depending on the shiftdirection.For more information about specific models of auto-mated transmissions, see Chapter 15.

Driving ScreensThe following screens are available when the parkingbrake is off (when the vehicle is mobile).Tap the MY INFO switch to drill down from eachmain screen to the submenus contained within it.Use the + and switches to scroll through screensand select options. Tap the MY INFO switch again toexit each change screen. See Fig. 4.15.i. Fasten seat belt (rpm100)iii. Odometeriv. Trip distance/hoursv. Trip advisoryvi. Leg distance/hoursvii. Leg advisoryviii. Fuel used/average MPG (KM/L)

f601414

WARNINGPARK BRAKE ON

06/21/2007

Fig. 4.14, Parking Brake On Alert Message

Instruments

4.16

ix. Outside air temperature

Favorite ScreenThe driver can set a favorite driving screen using theMY INFO switch. Press and hold the lower half of theMY INFO switch for just over one second to set thecurrent screen as the favorite screen. A chirp willsound to verify the screen has been set.Tap the lower half of the MY INFO switch to accessthe favorite screen. Tap the MY INFO switch again toleave the favorite screen.NOTE: Only driving screens can be set as thefavorite screen.

Parked Screens/MenusTap the MY INFO switch to drill down from eachmain screen to the submenus contained within it.Use the + and switches to scroll through screensand select options. Tap the MY INFO switch again toexit each change screen. Press and hold the +switch or the upper half of the MY INFO switch toreset the counters for trip and fuel information.The following screens are available when the parkingbrake is on (when the vehicle is parked). SeeFig. 4.16.i. Odometerii. Trip information including trip miles/hours, idle

hours, average speed, leg miles/hoursiii. Fuel information including fuel used, fuel

economy, idle/PTO fuel usageiv. Engine information including engine miles/hours,

engine/PTO gallons, oil levelv. Diagnostic informationvi. Service information including mileage or time to

next servicevii. Setup informationviii. Vehicle information including Datalink status, ICU

serial number, software versionix. Outside air temperaturex. Fasten seat belt warning

Trip InformationTrip Information displays the trip miles, trip adviso-ries, idle hours, leg miles, and leg advisories, in thatorder.

Fuel InformationFuel information displays total fuel usage since thelast reset, fuel mileage, and fuel consumed whileidling or running the PTO, in that order.

Engine InformationEngine information displays engine mileage andhours, and total fuel consumption, in that order.

Diagnostic InformationIf active fault codes are displayed on the diagnosticinformation screens, make a note of the fault code

R

R

R

R

R

+

+

+

+

+

+

0%III +10.5 MPG 23456.7 MI

TRIP MILES 123456.7TRIP HR 1234:56

TRIP ADVISORIES123 ROLL 456 BRK

LEG MILES 123456.7LEG HR 1234:56

LEG ADVISORIES123 ROLL 456 BRK

FUEL USED 12345.6AVG MPG 12:34

OUTSIDE AIRTEMPERATURE 56F

01/30/2012 f545600a

R = Hold to reset.

PUSH + KEYTO CONFIRM CLEAR

Confirmation screen will displayright after the first hold.

+

My Info

Odometer

Fig. 4.15, ICU4M Driving Screens

Instruments

4.17

and text message, then take the vehicle to an autho-rized Freightliner service facility See Fig. 4.17 for adiagram of the diagnostic information screens.

Service InformationThe Service Information menu displays the next ser-vice interval, expressed in either miles or hours. SeeFig. 4.17. Service intervals can also be deactivated.For programming service intervals, see Setup Infor-mation, below.NOTE: If the vehicle has exceeded the serviceinterval, the miles(km)/hours remaining screenis replaced by the service was due screen, fol-lowed by the number of miles(km)/hours sincethe service was due.

Setup InformationThe Setup Information menu allows the driver to pro-gram various features of the ICU4M. See Fig. 4.18.The setup features include:

1. Service intervals (OFF/MILES/HOURS)2. Outside temperature warning (ON/OFF)3. Target MPG4. LCD lamp (ON/OFF)5. Driver message center brightness6. Language (English/French/Spanish)7. Units of measurement (English/Metric)8. Driver select (ON/OFF)9. Reset parameters to original settings

Vehicle Information ScreensThe vehicle information screens display hardwareand software information, including the Freightlinerpart number and switch ID of the ICU. See Fig. 4.19.

IDLE HOURS 1234:5612.3 GAL 123456.7 MI

R

R R

R

R R R

+

+

+

TRIPINFORMATION

FUELINFORMATION

ENGINEINFORMATION

TRIP MILES 123456.7TRIP HR 1234:56

TRIP ADVISORIES123 ROLL 456 BRK

IDLE HOURS 1234:56AVG MPH 12.3

LEG MILES 123456.7LEG HR 1234:56

LEG ADVISORIES123 ROLL 456 BRK

FUEL USED 12345.6AVG MPG 12:34

IDLE GALLONS 12345.6PTO GAL 12345.6

ENG MILES 1234567.8ENG HOUR 1234:56

ENG GALLONS 123456.7PTO GAL 123456.7

OIL LVL*Lo

f545600b