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Adaptive Cruise Control (ACC)
Applicable only in the United States
Introduction to the subject
In this chapter you will find information on the following subjects:
⇒Special driving situations
⇒Limits of ACC
⇒Switching ACC on and off
⇒Adjusting settings for ACC
⇒Tips and troubleshooting
Your vehicle may be equipped with the Adaptive Cruise Control system (ACC), which helps maintain
an individually stored constant speed and a previously set speed-dependent distance interval be‐
tween your vehicle and those in front of you.
In certain situations, your vehicle may be braked to a standstill by an automatic braking
maneuver⇒ .
ACC speed range
ACC works when the vehicle speed is between about 20mph (30km/h) and 95mph (150km/h).
Driving with ACC
You can override control by ACC at any time. Control will be interrupted if you brake. If you acceler‐
ate, control will be interrupted while you are accelerating and then resumed.
When towing a trailer, ACC may work only with limited functionality ⇒Trailer towing .
Driver intervention warning
Adaptive Cruise Control has system-related limits. As a driver, you must control the speed and the
distance to other vehicles under some circumstances. If the deceleration of the ACC automatic brak‐
ing system is not sufficient to bring the vehicle to a full stop in time, a message in the instrument clus‐
ter display and a red warning light come on. Depress the brake pedal!
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