Emergency Assist system limitations
Emergency Assist detects driving situations using the same sensor technology as the Adaptive Cruise Control (ACC) and Lan
Keeping System (Lane Assist).
WARNING
Emergency Assist is not a replacement for the driver's attention and works only within the system limitations. Emergency
Assist cannot detect all driving situations and may not react, may react with a delay, or may react in a way that is not
desired. Emergency Assist also cannot always avoid accidents and serious injury by itself. If you are careless, there is a
risk of accidents, serious injuries and death.
Always stay attentive and do not rely solely on the system. The driver is always responsible for control of the
vehicle.
Observe the system limitations of ACC ⇒ ACC system limitations and Lane Assist ⇒ Lane Assist system
limitations.
Always adapt your speed and distance to vehicles driving ahead based on the visual, weather, road, and traffic
conditions.
If the vehicle behaves unexpectedly, stop the intervention by Emergency Assist.
Driving with Emergency Assist
Please read the introductory information and heed the Warnings and Notice ⇒
Introduction.
Switching on and off
When the ignition is switched on, Emergency Assist is active under the following conditions:
The Lane Assist system and Adaptive Cruise Control (ACC) are switched on.
A gear is engaged for driving forward.
The system must detect lane markers on the left and right side of the vehicle.
If Lane Assist is not available, Emergency Assist is not available either.
Driver intervention request
Using warning chimes and brief braking maneuver, Emergency Assist prompts an inactive driver to take over control of driving
In addition, a message is shown in the instrument cluster display.
System intervention
If you do not respond, the system can brake the vehicle and keep it in its lane. In the instrument cluster display, one of the
following indicator lights comes on:
System is regulating.
You can stop the regulation function at any time by accelerating, braking or steering as appropriate for the traffic situation.
Whenever Emergency Assist is actively controlling the vehicle, the emergency flashers will switch on after a short delay to
warn other road users.
If the remaining stopping distance is sufficient, the vehicle slows down, if necessary, to a stop.
As soon as the vehicle comes to a standstill, the following happens:
The electronic parking brake is switched on.
Depending on the vehicle equipment, an emergency call is made.
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