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Driver assist systems
8.2.2 Engaging and disengaging Adaptive Cruise Control
(ACC)
WARNING!
– Do not adapt your driving style to the knowledge of having
Adaptive Cruise Control (ACC).
ACC is merely a driving aid with certain limitations. ACC cannot
prevent accidents and it does NOT replace the driver's professional
judgement of the actual traffic situation. It is the driver who is and
remains at all times responsible for the proper operation of the
truck.
WARNING!
– The driver remains responsible for braking the vehicle under all
circumstances.
ACC controls the distance to moving vehicles ahead and not to
stationary objects on the road. The vehicle will not brake for
stationary objects or for oncoming traffic. ACC cannot bring the
vehicle to a complete stop. Ignoring these matters can lead to very
dangerous situations (such as a collision) for the driver but also for
other road users.
WARNING!
– Do not use ACC when towing a trailer with no or no functional ABS.
WARNING!
– The driver remains responsible for keeping a safe distance from the
vehicle ahead in all situations.
It can be difficult for ACC to identify vehicles before bends as well
as after bends. For this reason the vehicle may brake unexpectedly
or too late. Not keeping a safe distance to the vehicle ahead can
lead to very dangerous situations (for example a collision). This is
true not only for the driver but also for other road users.
Engaging ACC
ACC is set or switched off using the advanced vehicle speed settings menu. See
section 'Steering wheel switches' in chapter 'Instruments and controls'.
Engaging and disengaging conditions for ACC
Engaging conditions
When all of the following conditions are met, ACC can be engaged:
– The engine is running.
– The vehicle speed exceeds 25 km/h (16 mph) (ex-factory).
– No braking functions are active.
– Variable speed limiter is not active.
– Forward Collision Warning is not active.
DW63246305.book Page 252 Friday, March 22, 2019 4:54 PM
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