Why is reverse brake assist unavailable?
  • Make sure you switch the system on.   See   Switching Reverse Brake Assist On and Off
  • Make sure that the liftgate or tailgate, hood and all doors are closed.
  • Make sure the cross traffic alert system is on.   See   Cross Traffic Alert
  • Make sure the rear parking aid system is on.   See   Rear Parking Aid
  • Your vehicle may have sustained a rear end impact. Have the sensors checked for proper coverage and operation.
  • Make sure the exterior cameras are not dirty or obstructed. If dirty, clean the cameras. If the reverse brake assist unavailable message still appears after cleaning the cameras, wait a short time for the message to clear. If the message does not clear, drive the vehicle on a straight road for a short period. If the message remains, have the system checked.
  • Make sure the sensors are not blocked or faulted. See  Locating the Rear Parking Aid Sensors . 
    See  Locating the Cross Traffic Alert Sensors . 
  • You recently had your vehicle serviced, or the battery disconnected. Drive your vehicle a short distance to resume system operation.
  • The system does not function when you connect a trailer. Operation resumes when you disconnect the trailer.
Note:   If you are still having problems with reverse brake assist, have the system checked as soon as possible.

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