WARNING   WARNING:  Always pay close attention to changing road conditions when using adaptive cruise control. The system does not replace attentive driving. Failing to pay attention to the road may result in a crash, serious injury or death.
WARNING   WARNING:  Adaptive cruise control is not a crash warning or avoidance system.
WARNING   WARNING:  Adaptive cruise control may not detect stationary or slow moving vehicles below 6 mph (10 km/h).
WARNING   WARNING:  Do not use adaptive cruise control when towing a trailer that has trailer brakes. The auto-brake component of the adaptive cruise control system does not operate the trailer brakes. Using adaptive cruise control when towing a trailer that has trailer brakes may result in the loss of vehicle control, which could result in serious injury.
WARNING   WARNING:  Do not use tire sizes other than those recommended because this can affect the normal operation of the system. Failure to do so may result in a loss of vehicle control, which could result in serious injury.
WARNING   WARNING:  Adaptive cruise control does not detect pedestrians or objects in the road.
WARNING   WARNING:  Adaptive cruise control does not detect oncoming vehicles in the same lane.
WARNING   WARNING:  Do not use the system in poor visibility, for example fog, heavy rain, spray or snow.
WARNING   WARNING:  Do not use adaptive cruise control on winding roads, in heavy traffic or when the road surface is slippery. This could result in loss of vehicle control, serious injury or death.

 The system adjusts your vehicle speed to maintain the set gap between you and the vehicle in front of you in the same lane. You can select four gap settings.
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The adaptive cruise controls are on the steering wheel.
Switching Adaptive Cruise Control On
Press and release ON.
Missing Image  The indicator appears in the information display.
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The current gap setting and SET also appear in the information display.
Setting the Adaptive Cruise Speed
  1. Drive to desired speed.
  1. Press and release SET+ or SET-.
  1. A green indicator light, the current gap setting and your set speed appear in the information display.
  1. Take your foot off the accelerator pedal.
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  1. A vehicle graphic illuminates if there is a vehicle detected in front of you.
Note:   When adaptive cruise control is active, the speedometer may vary slightly from the set speed displayed in the information display.
Following a Vehicle
WARNING   WARNING:  When following a vehicle, your vehicle does not decelerate automatically to a stop, nor does your vehicle always decelerate quickly enough to avoid a crash without driver intervention. Always apply the brakes when necessary. Failing to do so may result in a crash, serious injury or death.
WARNING   WARNING:  Adaptive cruise control only warns of vehicles detected by the radar sensor. In some cases there may be no warning or a delayed warning. You should always apply the brakes when necessary. Failure to do so may result in a crash, serious injury or death.

Note:   The brakes may emit noise when applied by the system.
When a vehicle ahead of you enters the same lane or a slower vehicle is ahead in the same lane, the vehicle speed adjusts to maintain a preset gap distance.
A vehicle graphic illuminates if there is a vehicle detected in front of you.
Your vehicle maintains a consistent gap from the vehicle ahead until:
  • The vehicle in front of you accelerates to a speed above the set speed.
  • The vehicle in front of you moves out of the lane you are in.
  • Your vehicle speed falls below 12 mph (20 km/h).
  • You set a new gap distance.
The system applies the brakes to slow your vehicle to maintain a safe gap distance from the vehicle in front. The maximum braking which the system applies is limited. You can override the system by applying the brakes.
If the system determines that its maximum braking level will not be sufficient, an audible warning sounds while the system continues to brake. A red warning bar displays on the windshield and you must take immediate action.
Note:   When you are following a vehicle and you switch on a direction indicator, adaptive cruise control may provide a small temporary acceleration to help you pass.
Setting the Gap Distance
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AGap decrease.
BGap increase.
You can decrease or increase the gap between your vehicle and the vehicle in front of you by pressing the gap control.
Note:   It is your responsibility to select a gap appropriate to the driving conditions.
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The selected gap appears in the information display as shown by the bars in the graphic. Four gap settings are available.
The gap setting is time dependent and the distance automatically adjusts with your vehicle speed.
Adaptive cruise control gap settings

Set speed   Graphic display, bars indicated between vehicles   Time gap, seconds   Gap   Dynamic behavior  
mph ( km/h)   yd (m)  
62 mph (100 km/h)1   1   31 yd (28 m)Sport  
62 mph (100 km/h)2   1.4   43 yd (39 m)Normal  
62 mph (100 km/h)3   1.8   55 yd (50 m)Normal  
62 mph (100 km/h)4   2.2   67 yd (61 m)Comfort  

Each time you switch the system on, the system selects the last chosen gap.
Canceling the Set Speed
 Press and release CNCL or tap the brake pedal. The set speed does not erase.
Overriding the System
WARNING   WARNING:  If you override the system by pressing the accelerator pedal, it does not automatically apply the brakes to maintain a gap from any vehicle ahead.

You can override the set speed and gap by pressing the accelerator pedal.
Missing Image  When you override the system, the green indicator light illuminates and the lead vehicle graphic does not show in the information display.
The system resumes operation when you release the accelerator pedal. The vehicle speed decreases to the set speed, or a lower speed if following a slower vehicle.
Changing the Set Speed
  • When you select km/h as the display measurement in the information display the set speed changes in approximately 1 km/h increments. When you select mph as the display measurement in the information display the set speed changes in approximately 1 mph increments.
  • Press the accelerator or brake pedal until you reach the desired speed. Press and release SET+ or SET-.
  • Press and hold SET+ or SET-. The set speed changes in approximately 5 mph (10 km/h) increments.
The system may apply the brakes to slow the vehicle to the new set speed. The set speed displays continuously in the information display while the system is active.
Resuming the Set Speed
Press and release RES. The vehicle returns to the previously set speed and gap setting. The set speed displays continuously in the information display while the system is active.
Note:   Only use resume if you are aware of the set speed and intend to return to it.
Automatic Cancellation
The system does not operate below 12 mph (20 km/h). An audible warning sounds and the automatic braking releases if the vehicle drops below this speed.
Hilly Condition Usage
You should select a lower gear position when the system is active in situations such as prolonged downhill driving on steep grades, for example in mountainous areas. The system needs additional engine braking in these situations to reduce the load on the vehicle’s regular brake system to prevent them from overheating.
Note:   An audible warning sounds and the system shuts down if it applies brakes for an extended period of time. This allows the brakes to cool down. The system functions normally again when the brakes have cooled down.
Switching Adaptive Cruise Control Off
Press and release the OFF button when the system is in stand by mode or switch the ignition off.
Note:   The set speed memory erases when you switch off the system.
Detection Issues
WARNING   WARNING:  On rare occasions, detection issues can occur due to the road infrastructures, for example bridges, tunnels and safety barriers. In these cases, the system may brake late or unexpectedly. At all times, you are responsible for controlling your vehicle, supervising the system and intervening, if required.

The radar sensor has a limited field of vision. It may not detect vehicles at all or detect a vehicle later than expected in some situations. The lead vehicle graphic does not illuminate if the system does not detect a vehicle in front of you.
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Detection issues can occur:
AWhen driving on a different line than the vehicle in front.
BWith vehicles that edge into your lane. The system can only detect these vehicles once they move fully into your lane.
CThere may be issues with the detection of vehicles in front when driving into and coming out of a bend or curve in the road.
In these cases the system may brake late or unexpectedly. The driver should stay alert and intervene when necessary.
If something hits the front of your vehicle or damage occurs, the radar-sensing zone may change. This could cause missed or false vehicle detections. See an authorized dealer to have the radar checked for correct operation.
System Not Available
Conditions that can cause the system to deactivate or prevent the system from activating when requested include:
  • A blocked sensor.
  • High brake temperature.
  • A failure in the system or a related system.
Blocked Sensor
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A message displays if something obstructs the radar signals from the sensor. The sensor is located on the lower grille. The system cannot detect a vehicle ahead and does not function when something obstructs the radar signals.
The following table lists possible causes and actions for this message displaying.

Cause   Action  
The surface of the radar in the grille is dirty or obstructed in some way.   Clean the grille surface in front of the radar or remove the object causing the obstruction.  
The surface of the radar in the grille is clean but the message remains in the display.   Wait a short time. It may take several minutes for the radar to detect that it is free from obstruction.  
Heavy rain or snow is interfering with the radar signals.   Do not use the system in these conditions because it may not detect any vehicles ahead.  
Swirling water, or snow or ice on the surface of the road may interfere with the radar signals.   Do not use the system in these conditions because it may not detect any vehicles ahead.  
You are in a desert or remote area with no other vehicles and no roadside objects.   Wait a short time or switch to normal cruise control.  

Due to the nature of radar technology, it is possible to get a blockage warning and not be blocked. This can happen, for example, when driving in sparse rural environments. A false blocked condition self clears or clears after a key cycle.
Switching to Normal Cruise Control
WARNING   WARNING:  Normal cruise control will not brake when your vehicle is approaching slower vehicles. Always be aware of which mode you have selected and apply the brakes when necessary.

You can manually change from adaptive cruise control to normal cruise control through the information display.   See   Information Messages. 
Missing Image  The cruise control indicator light replaces the adaptive cruise control indicator light if you select normal cruise control. The gap setting does not display, the system does not automatically respond to lead vehicles. Automatic braking remains active to maintain set speed.