DRIVER SUPPORT
* Option/accessory. 213
Adaptive cruise control* - fault
tracing and action
If the combined instrument panel shows the mes-
sage Radar blocked See manual then it
means that the adaptive cruise control's radar
sensor (p. 216) cannot detect other vehicles in
front of the car.
This message indicates that neither of the func-
tions for Distance Alert (p. 199) or Collision
Warning with Auto Brake (p. 228) are working.
The following table presents examples of possi-
ble causes for a message being shown along
with the appropriate action:
Cause Action
The radar surface in the grille is dirty or covered with ice or snow. Clean the radar surface in the grille from dirt, ice and snow.
Heavy rain or snow blocking the radar signals. No action. Sometimes the radar does not work during heavy rain or snowfall.
Water or snow from the road surface swirls up and blocks the radar
signals.
No action. Sometimes the radar does not work on a very wet or snowy road sur-
face.
The radar surface has been cleaned but the message remains. Wait. It could take several minutes for the radar to sense that it is no longer
blocked.
Related information
•Adaptive cruise control (ACC)* (p. 203)
•Adaptive cruise control* - overview (p. 205)
•Cruise control* (p. 194)
