Elevation System Check

Check 

1. Turn the ignition ON, engine OFF.
2. Set the parking brake.

   Courtesy of FORD MOTOR COMPANY

3. Verify no audible alerts are heard. If audible alerts are heard, check to make sure the bumper is correctly installed and is not tilted downward so the sensor is pointing at the ground.
4. If the audible warning tone is heard, Refer to: Parking Aid .