Improper use of the Adaptive Cruise Control can cause collisions, other accidents and serious personal injury.
Always remember that the Adaptive Cruise Control has limits – it will not slow the vehicle down or maintain the set distance when you drive towards an
obstacle or something on or near the road that is not moving, such as vehicles stopped in a traffic jam, a stalled or disabled vehicle.
Always remember that the Adaptive Cruise Control cannot detect a vehicle that is driving towards you in your traffic lane and that it cannot detect narrow
vehicles such as motorcycles and bicycles.
Never drive at speeds that are too fast for traffic, road and weather conditions.
Never follow a vehicle so closely that you cannot stop your vehicle safely. The Adaptive Cruise Control cannot slow or brake the vehicle safely when you
follow another vehicle too closely. Always remember that the Adaptive Cruise Control has a braking power that is only about 30% of the vehicle's maximum
braking ability, and the automatic braking function cannot bring the vehicle to a stop.
Never use Adaptive Cruise Control when you cannot drive safely at a steady speed, including on city streets, on winding roads or when road conditions are
poor (for example, on ice, gravel, in fog, heavy rain or on wet roads that increase the risk of hydroplaning).
The radar sensor's vision can be reduced by rain, snow and heavy road spray. These and similar conditions can prevent vehicles up ahead from being
accurately detected and in some cases they may not be detected at all. Do not use ACC when the radar sensors cannot accurately detect vehicles moving
ahead of you in traffic.
Always turn off Adaptive Cruise Control when entering turn lanes, exit lanes and construction zones or in similar situations because the vehicle will
automatically accelerate to the stored speed when the road ahead is clear.
Never rest your foot on the accelerator pedal, especially when the Adaptive Cruise Control is being used because doing so will override the braking
function.
Always pay attention to traffic, especially when Adaptive Cruise Control is switched on.
Always maintain a safe speed and distance between your vehicle and other vehicles while considering the traffic situation. This is the duty of the driver.
Adaptive Cruise Control is merely an aid to the driver.
To prevent unintended operation, always switch ACC off when it is not being used.
It is dangerous to use the Resume feature when the previously set speed is too high for existing road, traffic or weather conditions.
Always select a speed and distance to traffic ahead that is safe and appropriate under the prevailing traffic, road, weather and lighting conditions.
Never allow the closing speed between you and other vehicles to be so high that the Adaptive Cruise Control may not be able to slow your vehicle safely. If
closing speed is too high, you must apply the brakes yourself to reduce the risk of a rear-end crash.
The stored speed is canceled when the ignition or the ACC is switched off.
ACC is automatically deactivated when ASR is switched off.
When to temporarily switch off ACC
Read and follow the introductory information and safety information first ⇒ Introduction to the subjectꢀ
Please deactivate ACC under following conditions due to system limitations ⇒ ꢀ:
When driving around curves, turn lanes, highway ramps, or construction sites; to prevent unwanted acceleration of the vehicle.
When driving through tunnels.
On roads with more than one lane, if other vehicles are driving more slowly in the fast lane. Vehicles in other lanes will normally not be detected and will, in
this case, be passed from the slow lane.
Under bad weather conditions or bad visibility, for example, in heavy rain, snowfall, or fog.
WARNING
Not deactivating Adaptive Cruise Control (ACC) in the situations mentioned above can cause collisions, other accidents, and serious personal injury.
Special driving situations
Fig. 129 Driving in a curve. Motorcycle traveling ahead outside of the sensor range.
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