
2. Release the accelerator pedal tomaximize engine braking.
3. Apply the brakes. The transmissiondownshifts to lower gears.
Note:You can shift the transmission tolower gears with progressive range selection(PRS) or manual shifting independent ofpressing the brakes.
Note:You can also use manual enginebraking with cruise control to improve gradedescent control.
Automatic Engine Braking
1. Press the button twice to switch onautomatic engine braking.
2.Release the accelerator or brake pedal.The system remembers your vehiclespeed.
Note:The system automatically activatesthe engine brake and, if necessary,downshifts the transmission to lower gearsto not exceed your vehicle's set speed whenthe brake or accelerator were last released.
Note:Use this when driving downhill andcarrying heavy loads or trailering.
Warning Lamp Conditions
•Illuminates when this feature isswitched on and the system isoperating properly. See WarningLamps and Indicators (page 105).
•Flashes when the engine brake isdisabled due to a fault or the enginedoes not meet the required brakingconditions.
•Does not illuminate when the switchor indicator is faulty.
You can switch the system on at anytime.The system becomes active once thebraking conditions are met.
Braking Conditions
•Your vehicle is in a forward gear.
•The engine speed is above about 1500RPM.
•Your foot is off the accelerator.
You can use this feature with tow/haul orprogressive range selection to providefurther increased engine braking. Thetransmission automatically upshifts toprevent the engine from entering the redzone on the tachometer. See AutomaticTransmission (page 205).
HINTS ON DRIVING WITH
ANTI-LOCK BRAKES
Note:When the system is operating, thebrake pedal may pulse and may travelfurther. Maintain pressure on the brakepedal. You may also hear a noise from thesystem. This is normal.
The anti-lock braking system will noteliminate the risks when:
•You drive too closely to the vehicle infront of you.
•Your vehicle is hydroplaning.
•You take corners too fast.
•The road surface is poor.
PARKING BRAKE
WARNING
Always set the parking brake fullyand make sure the transmission isplaced in park (P). Failure to set theparking brake and engage park could resultin vehicle roll-away, property damage orbodily injury. Turn the ignition to the lockposition and remove the key whenever youleave your vehicle.
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PRINCIPLE OF OPERATION
Cruise control lets you maintain a setspeed without keeping your foot on theaccelerator pedal. You can use cruisecontrol when your vehicle speed is greaterthan 20 mph (30 km/h).
USING CRUISE CONTROL
WARNINGS
Do not use cruise control on windingroads, in heavy traffic or when theroad surface is slippery. This couldresult in loss of vehicle control, seriousinjury or death.
When you are going downhill, yourvehicle speed could increase abovethe set speed. The system does notapply the brakes.
Note:Cruise control disengages if thevehicle speed decreases more than 10 mph(16 km/h) below the set speed when drivinguphill.
The cruise controls are on the steeringwheel.
Switching Cruise Control On
Press ON.
The indicator appears in theinformation display.
Setting the Cruise Speed
1. Drive to desired speed.
2. Press SET+ or SET-.
3. Take your foot off the acceleratorpedal.
Note:The indicator changes color.
Changing the Set Speed
Note: If you accelerate by pressing theaccelerator pedal, the set speed will notchange. When you release the acceleratorpedal, your vehicle returns to the speed thatyou previously set.
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•Press SET+ or SET- to change the setspeed in small increments.
•Press the accelerator or brake pedaluntil you reach the desired speed. PressSET+ or SET-.
•Press and hold SET+ or SET-. Releasethe control when you reach the desiredspeed.
Canceling the Set Speed
Press CNCL or tap the brake pedal. Theset speed does not erase.
Resuming the Set Speed
Press RES.
Switching Cruise Control Off
Note:You erase the set speed when youswitch the system off.
Press OFF when the system is in standbymode or switch the ignition off.
USING ADAPTIVE CRUISE
CONTROL (If Equipped)
WARNINGS
Always pay close attention tochanging road conditions when usingadaptive cruise control. The systemdoes not replace attentive driving. Failingto pay attention to the road may result ina crash, serious injury or death.
Adaptive cruise control is not a crashwarning or avoidance system.
Adaptive cruise control does notdetect stationary or slow movingvehicles below 6 mph (10 km/h).
Adaptive cruise control does notdetect pedestrians or objects in theroad.
WARNINGS
Adaptive cruise control does notdetect oncoming vehicles in thesame lane.
Do not use adaptive cruise controlon winding roads, in heavy traffic orwhen the road surface is slippery.This could result in loss of vehicle control,serious injury or death.
Do not use adaptive cruise controlwith a snow plow blade installed.
Do not use adaptive cruise controlwhen towing a trailer that has trailerbrakes. The auto-brake componentof the adaptive cruise control system doesnot operate the trailer brakes. Usingadaptive cruise control when towing atrailer that has trailer brakes may result inthe loss of vehicle control, which couldresult in serious injury.
Do not use tire sizes other than thoserecommended because this canaffect the normal operation of thesystem. Failure to do so may result in a lossof vehicle control, which could result inserious injury.
Note:It is your responsibility to stay alert,drive safely and control the vehicle at alltimes.
The system adjusts your speed to maintaina proper distance between you and thevehicle in front of you in the same lane. Youcan select from one of four gap settings.
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Cruise Control (If Equipped)

The controls for using your cruise controlare located on the steering wheel.
Switching the System On
Press and release ON.
The information display showsthe grey indicator light.
The current gap setting and SET alsoshows.
Setting a Speed
1. Accelerate to the desired speed.
2. Press and release SET+. The memorystores the vehicle speed.
3.The information display shows a greenindicator light, current gap setting andthe desired set speed.
4. Take your foot off the acceleratorpedal.
5.A lead vehicle graphic illuminates if thesystem detects a vehicle in front of you.
Note:When adaptive cruise control isactive, the speedometer may vary slightlyfrom the set speed displayed in theinformation display.
Following a Vehicle
WARNINGS
When following a vehicle, yourvehicle does not decelerateautomatically to a stop, nor doesyour vehicle always decelerate quicklyenough to avoid a crash without driverintervention. Always apply the brakes whennecessary. Failing to do so may result in acrash, serious injury or death.
Adaptive cruise control only warnsof vehicles detected by the radarsensor. In some cases there may beno warning or a delayed warning. Alwaysapply the brakes when necessary. Failureto do so may result in a crash, serious injuryor death.
Note:The brakes may emit a sound whenthe adaptive cruise control system is active.
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When a vehicle ahead of you enters thesame lane or a slower vehicle is ahead inthe same lane, the vehicle speed adjuststo maintain a preset gap distance. Thedistance setting is adjustable.
The lead vehicle graphic illuminates.
The vehicle maintains a constant distancefrom the vehicle ahead until:
•The vehicle in front of you acceleratesto a speed above the set speed.
•The vehicle in front of you moves outof your lane or out of view.
•The vehicle speed falls below 12 mph(20 km/h).
•You set a new gap distance.
The system applies the brakes to slow thevehicle to maintain a safe distance fromthe vehicle in front. The system appliesonly limited maximum braking. Press thebrake pedal to override the system.
If the system predicts that its maximumbraking level is insufficient, an audiblewarning sounds while the systemcontinues to brake. A red warning barappears on the windshield heads-updisplay. Take immediate action to slow orstop the vehicle.
The system may provide slight temporaryacceleration when you use your driver sidedirectional indicator while following a leadvehicle, to aid in passing the vehicle.
Setting the Gap Distance
Note:It is your responsibility to select a gapappropriate to the driving conditions.
Gap decrease.A
Gap increase.B
Press the gap control to decrease orincrease the distance between your vehicleand the vehicle in front of you.
Bars in the graphic show the selected gapdistance. You can select between four gapsettings.
Note:When you select Tow/Haul Mode,the gap distance is increased slightly.
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Adaptive cruise control distance-between-vehicle settings
Dynamic beha-viorDistance gapTime gap,secondsGraphic display,bars indicatedbetweenvehicles
Set speed
yd (m)mph ( km/h)
Sport.37 (34)1.2162 (100)
Normal.49 (45)1.6262 (100)
Normal.55 (50)1.8362 (100)
Comfort.67 (61)2.2462 (100)
Each time you start the vehicle, the systemselects the last chosen gap for the currentdriver.
Disengaging the System
Press the brake pedal or press CNCL. Thelast set speed displays in grey but does noterase.
Overriding the System
WARNING
If you override the system by pressingthe accelerator pedal, it does notautomatically apply the brakes tomaintain a gap from any vehicle ahead.
When you press the accelerator pedal, youoverride the set speed and gap distance.
The green indicator illuminateswhen the system engages.
The system resumes operationwhen you release the accelerator pedal.The vehicle speed decreases to the setspeed, or to a lower speed if following aslower vehicle.
Changing the Set Speed
•Accelerate or brake to the desiredspeed, then press and release SET+.
•Press and hold SET+ or SET- until thedesired set speed shows on theinformation display. The vehicle speedgradually changes to the selectedspeed.
•Press and release SET+ or SET-. Theset speed changes in approximately1 mph (1 km/h).
•Hold the SET+ or SET- button tochange the set speed in increments ofapproximately 5 mph or 10 km/h.
The system may apply the brakes to slowthe vehicle to the new set speed. The setspeed displays continuously in theinformation display while the system isactive.
Resuming the Set Speed
Note:Only use resume if you are aware ofthe set speed and intend to return to it.
Press and release RES. The vehicle returnsto the previously set speed. The set speedshows continuously in the informationdisplay while the system is active.
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Low Speed AutomaticCancellation
The system does not function at vehiclespeeds below 12.4 mph (20 km/h). Anaudible alarm sounds and the automaticbraking releases if the vehicle drops belowthis speed.
Hilly Condition and Trailer TowUsage
Note:An audible alarm sounds and thesystem shuts down if it applies brakes foran extended period of time. This allows thebrakes to cool. The system functionsnormally again when the brakes havecooled.
Note:When towing with adaptive cruisecontrol, turn on Tow/Haul Mode and DieselEngine Brake.
Select a lower gear when the system isactive in situations such as prolongeddownhill driving on steep grades, forexample in mountainous areas. Thesystem needs additional engine braking inthese situations to reduce the load on thevehicle’s regular brake system to preventit from overheating.
Switching the System Off
Note:The set speed memory erases whenyou switch off the system.
Press and release OFF or switch off theignition.
Detection Issues
WARNING
On rare occasions, detection issuescan occur due to the roadinfrastructures, for example bridges,tunnels and safety barriers. In these cases,the system may brake late orunexpectedly. At all times, you areresponsible for controlling your vehicle,supervising the system and intervening, ifrequired.
The radar sensor has a limited field ofvision. It may not detect vehicles at all ordetect a vehicle later than expected insome situations. The lead vehicle graphicdoes not illuminate if the system does notdetect a vehicle in front of you.
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Detection issues can occur:
When driving on a different linethan the vehicle in front.A
With vehicles that edge into yourlane. The system can only detectthese vehicles once they movefully into your lane.
B
There may be issues with thedetection of vehicles in frontwhen driving into and coming outof a bend or curve in the road.
C
In these cases the system may brake lateor unexpectedly. Stay alert and take actionwhen necessary.
If something hits the front end of yourvehicle or damage occurs, theradar-sensing zone may change. This couldcause missed or false vehicle detections.Contact an authorized dealer to have themcheck for proper coverage and operation.
System Not Available
Conditions that can cause the system todeactivate or prevent the system fromactivating when requested include:
•A blocked sensor.
•High brake temperature.
•A failure in the system or a relatedsystem.
Note:If you disable electronic stabilitycontrol, adaptive cruise control is notavailable. See Using Stability Control(page 227).
Blocked Sensor
A message displays if something obstructsthe radar signals from the sensor. Thesensor is behind a cover near the driver sideof the lower grille. The system cannotdetect a vehicle ahead and does notfunction when something obstructs theradar signals. The following table listspossible causes and actions for thismessage displaying.
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