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Forward Radar Systems
All system information, such as the preferred speed and
warning messages, is displayed in the instrument cluster.
The ACC driving mode and the distance to the vehicle
ahead may be configured in the infotainment system on
certain systems. The Distance Regulation Control Module
J428 transmits the preferred speed and distance values
to the ECM. The ECM takes charge of coordinating
acceleration and braking.
As with any driving situation, the driver is responsible for all
vehicle operations. ACC can be immediately overridden
using the brake or accelerator. During operation, the ACC
system has limits. If these limits are reached or exceeded,
the driver is informed and visually prompted to take control.
Operating Limits
If radar sensor operation is impaired by heavy rain, snow or
dirt, ACC automatically deactivates. The message "ACC –
no sensor image" appears in the dash panel insert. When
the cause of the impairment has been eliminated, the driver
can reactivate the ACC regulation.
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