Vehicles with oversize loads
Under certain circumstances vehicles carrying oversize loads or loads that exceed the vehicle dimen-
sions, like flat-bed trailer trucks, can't be recognized correctly by the ACC. Switch off ACC when
driving behind such vehicles.
Other vehicles changing lanes
Vehicles that change into your lane within a short distance can only be detected by the radar sensor
once they are within sensor range
⇒
fig. 278
(C)
. The result is a delayed reaction by the Adaptive
Cruise Control.
Stationary vehicles
If a vehicle detected by Adaptive Cruise Control turns or changes lanes and there is a stationary
vehicle in front of that vehicle, the system will not react to the stationary vehicle
(D)
.
Narrow vehicles
Narrow vehicles, such as motorcycles traveling ahead, are often detected late or not at all under some
circumstances.
Oncoming vehicles
ACC does not detect oncoming vehicles on your lane.
Metal objects on the road
Metal objects on the road, such as tracks, can cause irritations for the ACC due to falsely reflected
radar signals and therefore lead to unwanted reactions of the system, such as abrupt braking maneu-
vers.
Radar sensor impaired by rain and dirt
If the radar sensor function is impaired by heavy rain, spray, snow or mud, Adaptive Cruise Control
switches off temporarily.
ACC not available. No sensor view!
appears in the instrument
cluster display.
When Adaptive Cruise Control is reactivated after this message is displayed, it functions like a “stand-
ard” cruise control system. It maintains the set speed but it does
not
regulate the distance to the
vehicle ahead.
Overheated brakes
Adaptive Cruise Control may switch off temporarily if the brakes overheat significantly, for example
from braking maneuvers or driving down steep slopes.
ACC not available
appears in the instru-
ment cluster display. Adaptive Cruise Control cannot be activated.
Adaptive Cruise Control can be activated again once the temperature of the brakes decreases suffi-
ciently. The message
ACC not available
in the instrument cluster switches off.
If the message
ACC not available
does not switch off, there is a malfunction. Contact your au-
thorized Volkswagen dealer.
Trailer towing
When towing a trailer, ACC and the Forward Collision Warning system (Front Assist) may work only
with limited functionality.
Text messages in the instrument cluster display
Text message
Meaning
