
Possible Causes and Actions for This Message Displaying:
ActionCause
Clean the grille surface in front of the radar or remove the objectcausing the obstruction.The surface of the radar is dirty or obstructed.
Wait a short time. It may take several minutes for the radar to detectthat it is free from obstruction.The surface of the radar is clean but the message remains in thedisplay.
Do not use the system in these conditions because it may not detectany vehicles ahead.Heavy rain or snow is interfering with the radar signals.
Do not use the system in these conditions because it may not detectany vehicles ahead.Water, snow or ice on the surface of the road may interfere with theradar signals.
Wait a short time or switch to normal cruise control.You are in a desert or remote area with no other vehicles and noroadside objects.
Due to the nature of radar technology, it is possible to get a blockage warning with no actual block. This happens, for example, when drivingin sparse rural or desert environments. A false blocked condition either self clears, or clears after you restart your vehicle.
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Cruise Control

DRIVER ALERT (If Equipped)
PRINCIPLE OF OPERATION
WARNINGS
The system is designed to aid thedriver. It is not intended to replace yourattention and judgment. You are stillresponsible to drive with due care andattention.
At all times, you are responsible forcontrolling your vehicle, supervisingthe system and intervening, if required.Failure to take care may result in the loss ofcontrol of your vehicle, serious personalinjury or death.
The system may not function if thesensor is blocked.
Take regular rest breaks if you feeltired. Do not wait for the system towarn you.
Certain driving styles may result in thesystem warning you even if you are notfeeling tired.
WARNINGS
In cold and severe weather conditionsthe system may not function. Rain,snow and spray can all limit sensorperformance.
The system will not operate if thesensor cannot track the road lanemarkings.
If damage occurs in the immediate areasurrounding the sensor, have yourvehicle checked as soon as possible.
Note:The system may not operate correctlyif you modify the ride height.
Note:Keep the windshield free fromobstructions. For example, bird droppings,insects, snow or ice.
Note:If the camera is blocked or if thewindshield is damaged, the system may notfunction.
Note:If enabled in the menu, the systemactivates at speeds above 40 mph (64 km/h).When below the activation speed, theinformation display informs the driver thatthe system is unavailable.
The system automatically monitors yourdriving behavior using various inputsincluding the front camera sensor.
If the system detects that your drivingalertness is reduced below a certainthreshold, the system alerts you using achime and a message in the informationdisplay.
USING DRIVER ALERT
Switching the System On and Off
Switch the system on or off using theinformation display. See General Information(page 111).
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LANE KEEPING SYSTEM (If Equipped)
WARNINGS
The system is designed to aid thedriver. It is not intended to replace yourattention and judgment. You are stillresponsible to drive with due care andattention.
Always drive with due care andattention when using and operating thecontrols and features on your vehicle.
At all times, you are responsible forcontrolling your vehicle, supervisingthe system and intervening, if required.Failure to take care may result in the loss ofcontrol of your vehicle, serious personalinjury or death.
In cold and severe weather conditionsthe system may not function. Rain,snow and spray can all limit sensorperformance.
The system will not operate if thesensor cannot track the road lanemarkings.
WARNINGS
The sensor may incorrectly track lanemarkings as other structures or objects.This can result in a false or missed warning.
Large contrasts in outside lighting canlimit sensor performance.
The system may not operate properlyif the sensor is blocked. Keep thewindshield free from obstruction.
If damage occurs in the immediate areasurrounding the sensor, have yourvehicle checked as soon as possible.
Note:The system works above 40 mph(64 km/h).
Note:The system works as long as thecamera can detect one lane marking.
Note:The system may not function if thecamera is blocked or there is damage to thewindshield.
Note:When Aid mode is on and the systemdetects no steering activity for a short period,the system will alert you to put your handson the steering wheel. The system maydetect a light grip or touch on the steeringwheel as hands off driving.
The system notifies you to stay in your lanethrough the steering system and theinstrument cluster display when the frontcamera detects an unintentional drift out ofyour lane is likely to occur. The systemautomatically detects and tracks the roadlane markings using a camera mountedbehind the interior rear view mirror.
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Driving AidsE249505

Intensity: This setting affects the intensity ofthe steering wheel vibration used for the alertand alert + aid modes. This setting does notaffect the aid mode.
•Low
•Normal
•High
System Display
When you switch on the system, an overheadgraphic of a vehicle with lane markings willdisplay in the information display. If youselect aid mode when you switch on thesystem, a separate white icon will alsoappear or in some vehicles arrows willdisplay with the lane markings.
When you switch off the system, the lanemarking graphics will not display.
While the system is on, the color of the lanemarkings will change to indicate the systemstatus.
Gray: Indicates that the system is temporarilyunable to provide a warning or interventionon the indicated side(s). This may bebecause:
•Your vehicle is under the activationspeed.
•The direction indicator is active.
•Your vehicle is in a dynamic maneuver.
•The road has no or poor lane markingsin the camera field-of-view.
•The camera is obscured or unable todetect the lane markings due toenvironmental, traffic or vehicleconditions. For example, significant sunangles, shadows, snow, heavy rain or fog,following a large vehicle that is blockingor shadowing the lane, poor headlampillumination.
See Troubleshooting for additionalinformation.
Green: Indicates that the system is availableor ready to provide a warning or intervention,on the indicated side(s).
Yellow: Indicates that the system is providingor has just provided a lane keeping aidintervention.
Red: Indicates that the system is providingor has just provided a lane keeping alertwarning.
The system can be temporarily suppressedat any time by the following:
•Quick braking.
•Fast acceleration.
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•Using the turn signal indicator.•Evasive steering maneuver.
Troubleshooting
Why is the feature not available (line markings are gray) when I can see the lane markings on the road?
Vehicle speed is outside the operational range of the feature
Sun is shining directly into the camera lens
Quick intentional lane change
Staying too close to the lane marking
Driving at high speeds in curves
The last alert warning or aid intervention occurred a short time ago
Ambiguous lane markings (mainly in construction zones)
Rapid transition from light to dark, or from dark to light
Sudden offset in lane markings
ABS or AdvanceTrac™ activation
Camera blockage due to dirt, grime, fog, frost or water on the windshield
Driving too close to the vehicle in front of you
Transitioning between no lane markings to lane markings or vice versa
Standing water on the road
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Driving Aids

System Lights and Messages
When the system detects a vehicle, an alertindicator illuminates in the exterior mirror onthe side the approaching vehicle is comingfrom. If you turn the direction indicator on forthat side of your vehicle, the alert indicatorflashes.
Note:The system may not alert you if avehicle quickly passes through the detectionzone.
Blocked Sensors
The sensors are behind the rear bumper onboth sides of your vehicle.
Note:Keep the sensors free from snow, iceand large accumulations of dirt.
Note:Do not cover the sensors with bumperstickers, repair compound or other objects.
Note:Blocked sensors could affect systemperformance.
If the sensors are blocked, a message mayappear in the information display. SeeInformation Messages (page 117). The alertindicators remain illuminated but the systemdoes not alert you.
System Errors
If the system detects a fault, a warning lampilluminates and a message displays. SeeInformation Messages (page 117).
Switching the System Off and On
You can switch the system off using theinformation display. See GeneralInformation (page 111). When you switch thesystem off, a warning lamp illuminates anda message displays. When you switch thesystem on or off, the alert indicators flashtwice.
Note:The system remembers the last settingwhen you start your vehicle.
Note:The system may not correctly operatewhen towing a trailer. For vehicles with atrailer tow module and tow bar approved byus, the system turns off when you attach atrailer. For vehicles with an aftermarkettrailer tow module or tow bar, werecommend that you switch the system offwhen you attach a trailer.
To permanently switch the system off,contact an authorized dealer.
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Driving AidsE142442 E205199

System Lights, Messages and AudibleAlerts
When the system detects a vehicle, anindicator illuminates in the exterior mirror onthe side the approaching vehicle is comingfrom. A tone sounds and a message appearsin the information display.
Note:In exceptional conditions, the systemcould alert you even when there is nothingin the detection zone, for example a vehiclepassing in the distance.
Blocked Sensors
The sensors are behind the rear bumper onboth sides of your vehicle.
Note:Keep the sensors free from snow, iceand large accumulations of dirt.
Note:Do not cover the sensors with bumperstickers, repair compound or other objects.
Note:Blocked sensors could affect systemperformance.
If the sensors are blocked, a message mayappear in the information display when youshift into reverse (R). See InformationMessages (page 117).
System Limitations
The system may not correctly operate whenany of the following occur:
•The sensors are blocked.
•Adjacently parked vehicles or objects areobstructing the sensors.
•Vehicles approach at speeds greaterthan 37 mph (60 km/h).
•The vehicle speed is greater than 7 mph(12 km/h).
•You reverse out of an angled parkingspace.
System Errors
If the system detects a fault a messagedisplays. See Information Messages (page117).
Switching the System Off and On
You can temporarily switch the system offusing the information display. SeeInformation Messages (page 117). When youswitch system off, a message displays. SeeInformation Messages (page 117).
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Blocked SensorsIf a message regarding a blocked sensor orcamera appears in the information display,the radar signals or camera images areobstructed. The radar sensor is locatedbehind a fascia cover near the driver side ofthe lower grille. With an obstructed radar,the Pre-Collision Assist system does notfunction and cannot detect a vehicle ahead.With the front camera obstructed, thePre-Collision Assist system does not respondto pedestrians or stationary vehicles and thesystem performance on moving vehiclesreduces. The following table lists possiblecauses and actions for when this messagedisplays.
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