
•An open or pinched sensor hose.
•Incorrect engine oil level.
•Incorrect fuel for climatic conditions.
•Incorrect engine oil viscosity for climacticconditions.
Note:Some vehicles have a lifetime fuel filterthat is integrated with the fuel tank. Regularmaintenance or replacement is not needed.
Note:If these checks do not help you correctthe concern, have your vehicle checked assoon as possible.
Noise Emissions Warranty, ProhibitedTampering Acts and Maintenance
On January 1, 1978, Federal regulationbecame effective governing the noiseemission on trucks over 10,000 lb (4,536 kg)Gross Vehicle Weight Rating (GVWR). Thepreceding statements concerning prohibitedtampering acts and maintenance, and thenoise warranty found in the Warranty Guide,are applicable to complete chassis cabs over10,000 lb (4,536 kg) GVWR.
CATALYTIC CONVERTER
WARNINGS
Do not park, idle or drive your vehicleon dry grass or other dry ground cover.The emission system heats up the enginecompartment and exhaust system, creatingthe risk of fire.
The normal operating temperature ofthe exhaust system is very high. Neverwork around or attempt to repair any part ofthe exhaust system until it has cooled. Usespecial care when working around thecatalytic converter. The catalytic converterheats up to a very high temperature afteronly a short period of engine operation andstays hot after the engine is switched off.
Exhaust leaks may result in entry ofharmful and potentially lethal fumesinto the passenger compartment. If you smellexhaust fumes inside your vehicle, have yourvehicle inspected immediately. Do not driveif you smell exhaust fumes.
Your vehicle has various emission controlcomponents and a catalytic converter thatenables it to comply with applicable exhaustemission standards.
To make sure that the catalytic converter andother emission control components continueto work properly:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 276).
•Use only the specified fuel listed.
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Resulting component damage maynot be covered by the vehicle Warranty.
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3. The gearshift button you select willilluminate and the selected gear willappear in the instrument cluster.
4. Release the brake pedal and yourtransmission will remain in the selectedgear.
Note:If you attempt to leave your vehiclewhile it is in gear, your vehicle willautomatically shift into park (P). Safety beltand door monitors determine your intent andmake the shift for you. During this time, amessage will appear in the informationdisplay screen prompting you to make theshift to park (P).
Note:To put your vehicle in gear with thedoor open, perform steps 1-4. See theAutomatic Return to Park section in thischapter for more information on this feature.
Park (P)
With the transmission in park (P), your vehiclelocks the transmission and prevents thewheels from turning. Always come to acomplete stop before putting your vehicleinto and out of park (P). An audible tonesounds once you select park (P).
When the ignition is turned off, the vehiclewill automatically shift into park (P). If theignition is turned off while the vehicle ismoving, it will first shift into neutral (N) untila slow enough speed is reached. The vehiclewill then shift into park (P) automatically.
Automatic Return to Park
Note:This feature will not operate when yourvehicle is in Stay in Neutral mode or neutraltow.
Your vehicle has a safety feature that willautomatically shift your vehicle into park (P)when any of the following conditions occur:
•You turn the ignition off
•You open the driver's door with yoursafety belt unlatched
•Your safety belt is unlatched while thedriver's door is open
If you turn the ignition off while your vehicleis moving, your vehicle will first shift intoneutral (N) until it slows down enough to shiftinto park (P) automatically.
Note:If you have waited an extended periodof time (2-15 minutes) before starting yourvehicle, unlatching your safety belt will causethis feature to activate, even with the driver'sdoor closed.
Note:This feature may not work properly ifthe door ajar switch is malfunctioning. If yourdoor ajar indicator does not illuminate whenyou open the driver’s door or the indicatorilluminates with the driver’s door closed, seeyour authorized dealer.
Reverse (R)
With the transmission in reverse (R), yourvehicle will move backward. Always cometo a complete stop before shifting into andout of reverse (R).
Neutral (N)
With the transmission in neutral (N), you canstart your vehicle and it is free to roll. Holdthe brake pedal down while in this position.
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Transmission

2. Locate your brake-shift interlock accessslot. The slot is located below the mediahub, in your center console storage bin.The access slot does not have a label.
Note:Make sure that you correctly identifythe access hole as not to damage the mediahub.
3. Using a tool, press and hold the brakeshift interlock switch. The shift buttonson the instrument panel will flash whenyour vehicle is in override mode.
4. With the override switch still held, pressthe neutral (N) button to shift from park.
5. Release the override button.
6.Your vehicle will remain in neutral (N) forwrecker towing purposes or can beshifted to the desired gear and driven (ifpossible).
7. Release the parking brake.
Automatic Transmission AdaptiveLearning
This feature increases durability and providesconsistent shift feel over the life of yourvehicle. A new vehicle or transmission mayhave firm or soft shifts. This operation willnot affect function or durability of yourtransmission and is normal. Over time, theadaptive learning process will fully updatetransmission operation. Additionally, thestrategy must be relearned whenever thebattery is disconnected or a new battery isinstalled.
If Your Vehicle Gets Stuck In Mud orSnow
Note:Do not rock your vehicle if your engineis not at normal operating temperature ordamage to your transmission may occur.
Note:Do not rock your vehicle for more thana minute or damage to your transmissionand tires may occur, or your engine mayoverheat.
Note:If your vehicle is equipped withAdvanceTrac with Roll Stability Control, itmay be beneficial to disengage theAdvanceTrac with Roll Stability Controlsystem while attempting to rock the vehicle.
If your vehicle gets stuck in mud or snow,you can help rock your vehicle out by shiftingbetween forward and reverse gears,stopping between shifts in a steady pattern.Press lightly on the accelerator in each gear.
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GENERAL INFORMATION
Note:Occasional brake noise is normal. If ametal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn-out. Have thesystem checked by an authorized dealer. Ifyour vehicle has continuous vibration orshudder in the steering wheel while braking,have it checked by an authorized dealer.
Note:Brake dust may accumulate on thewheels, even under normal drivingconditions. Some dust is inevitable as thebrakes wear and does not contribute tobrake noise. See Cleaning the Wheels(page 339).
Note:Depending on applicable laws andregulations in the country for which yourvehicle was originally built, your brake lampsmay flash during heavy braking. Followingthis, your hazard lights may also flash whenyour vehicle comes to a stop.
See Warning Lamps andIndicators (page 113).
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when driving from a car wash orstanding water to dry the brakes.
Brake Over Accelerator
In the event the accelerator pedal becomesstuck or entrapped, apply steady and firmpressure to the brake pedal to slow thevehicle and reduce engine power. If youexperience this condition, apply the brakesand bring your vehicle to a safe stop. Movethe transmission to park (P), switch theengine off and apply the parking brake.Inspect the accelerator pedal for anyinterference. If none are found and thecondition persists, have your vehicle towedto the nearest authorized dealer.
Brake Assist
Brake assist detects when you brake rapidlyby measuring the rate at which you press thebrake pedal. It provides maximum brakingefficiency as long as you press the pedal,and can reduce stopping distances in criticalsituations.
Anti-lock Brake System
This system helps you maintain steeringcontrol during emergency stops by keepingthe brakes from locking.
This lamp momentarily illuminateswhen you turn the ignition on. Ifthe light does not illuminate duringstart up, remains on or flashes, the systemmay be disabled. Have the system checkedby an authorized dealer. If the anti-lock brakesystem is disabled, normal braking is stilleffective.
If the brake warning lampilluminates when you release theparking brake, have the systemchecked by an authorized dealer.
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Vehicles with Automatic Transmission
You cannot turn the system on or off. Whenyou switch the ignition on, the systemautomatically turns on.
AUTO HOLD
WARNINGS
The system does not replace theparking brake. When you leave yourvehicle, always apply the parking brake.
You must remain in your vehicle whenthe system turns on. At all times, youare responsible for controlling your vehicle,supervising the system and intervening, ifrequired. Failure to take care may result inthe loss of control of your vehicle, seriouspersonal injury or death.
The system will turn off if a malfunctionis apparent. Failure to take care mayresult in the loss of control of your vehicle,serious personal injury or death.
Auto Hold uses your vehicle's brakes to holdyour vehicle at a stop once your vehicle hasreached a standstill condition. For example,Auto Hold can assist you while stopping attraffic lights or while in traffic jams by holdingthe brake pressure for you once you bringyour vehicle to a stop.
Switch Auto Hold off during vehicle or trailertowing.
Note:In case of a malfunction in the systemwhile Auto Hold actively holds the vehicle(for example, low power supply), a messageappears in the information display askingyou to press the brake pedal. If you see thismessage, press the brake pedalimmediately.
Note:Auto Hold only activates if the systemrecognizes it is applying enough brakepressure. On a steep hill or incline, you mayneed to make sure the brake pedal ispressed sufficiently to activate the Auto Holdsystem.
Note:In some cases, Auto Hold might handover to the parking brake. When the parkingbrake automatically applies, the red brakelamp appears. This is normal. When youpress the accelerator pedal, the drive awayrelease feature automatically releases theparking brake.
Note:Auto Hold works on all road gradesand in reverse (R).
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Coverage area of up to 6 ft (1.8 m) from therear bumper. There may be decreasedcoverage area at the outer corners of thebumper.
The system detects certain objects while thetransmission is in reverse (R) :
•Your vehicle is moving toward astationary object at a speed of 3 mph(5 km/h) or less.
•Your vehicle is not moving, but a movingobject is approaching the rear of yourvehicle at a speed of 3 mph (5 km/h) orless.
•Your vehicle is moving at a speed of lessthan 3 mph (5 km/h) and a moving objectis approaching the rear of your vehicleat a speed of less than 3 mph (5 km/h).
The system provides audio warnings onlywhen your vehicle is moving or when yourvehicle is stationary and the detectedobstacle is less than 12 in (30 cm) away fromthe bumper.
Obstacle Distance Indicator (If Equipped)
The system provides obstacle distanceindication through the information display.The distance indicator displays when thetransmission is in reverse (R).
The indicator displays:
•As the distance to the obstacledecreases the indicator blocks illuminateand move towards the vehicle icon.
•If there is no obstacle detected, thedistance indicator blocks are grayed out.
FRONT PARKING AID (If Equipped)
The front sensors are active when thetransmission is in any position other thanpark (P) and your vehicle is traveling at lowspeed.
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Coverage area of up to 28 in (70 cm) fromthe front bumper. The coverage areadecreases at the outer corners.
When your vehicle approaches an object, awarning tone sounds. When your vehiclemoves closer to an object, the warning tonerepeat rate increases. The warning tonesounds continuously when an object is 12 in(30 cm) or less from the front bumper.
You can switch the system off through theinformation display menu or from the pop-upmessage that appears once you shift thetransmission into reverse (R). See GeneralInformation (page 118). If your vehicle has aparking aid button, you can switch thesystem off by pressing the button.
Obstacle Distance Indicator (If Equipped)
The system provides obstacle distanceindication through the information display.
The indicator displays:
•As the distance to the obstacledecreases the indicator blocks illuminateand move towards the vehicle icon.
•If there is no obstacle detected, thedistance indicator blocks are grayed out.
If the transmission is in reverse (R), the frontsensing system provides audio warningswhen your vehicle is moving and thedetected obstacle is moving towards yourvehicle. Once the vehicle is stationary, theaudio warning will be stopped after 2seconds. Visual indication is always presentin reverse (R).
If the transmission is in drive (D) or any otherforward gear (for example, low (L), sport (S)or any forward gear in a manualtransmission), the front sensing systemprovides audio and visual warnings whenyour vehicle is moving below a speed of5 mph (8 km/h) and an obstacle is located
inside the detection area. Once the vehicleis stationary, the audio warning will bestopped after 2 seconds and the visualindication stops after 4 seconds. If theobstacles detected are within 12 in (30 cm),the visual indication remains on.
If the transmission is in neutral (N), thesystem provides visual indication only whenyour vehicle is moving at 5 mph (8 km/h) orbelow and an obstacle is located inside thedetection area. Once your vehicle isstationary, the visual indication will stop after4 seconds.
SIDE SENSING SYSTEM (If Equipped)
The side sensing system uses the front andrear side sensors to detect and mapobstacles within the vehicle's driving path,located near the sides of your vehicle. Theside sensors are active when thetransmission is in any position other thanpark (P).
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Parking Aids

Note:Obstacles that enter the side detectionarea without being detected and mappedby the front or rear side sensors will not bedetected.
Coverage area is up to 24 in (60 cm) fromthe sides of your vehicle.
When the system detects an object close tothe side of your vehicle, an audible warningsounds. As your vehicle moves closer toobstacles within the driving path of yourvehicle, the rate of the audible warningincreases.
Obstacle Distance Indicator (If Equipped)
The system provides obstacle distanceindication through the information display.
As the distance to the obstacle decreases,the indicator blocks illuminate and movetoward the vehicle icon. If there is noobstacle detected, the distance indicatorblocks show greyed out.
When you shift to reverse (R), the sidesensing system provides audible warningswhen your vehicle is moving and obstaclesare detected within 24 in (60 cm) and areinside the driving path of your vehicle. Whenyou stop your vehicle the audible warningstops after two seconds.
Note:Visual distance indication remains onwhen the transmission is in reverse (R).
When you shift to drive (D) or any otherforward gear, for example, low (L), sport (S)or any forward gear in manual transmission,the side sensing system provides audibleand visual distance warnings when yourvehicle is moving below a speed of 5 mph(8 km/h) and obstacles are detected within24 in (60 cm) and are inside the driving pathof your vehicle. Once your vehicle reachesa standstill condition, the audible warningstops after two seconds and visual indicationstops after four seconds.
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