See also:

Selecting and scanning a folder
 - Selecting folders one at a time Press the 6 () or 5 () button to select the desired folder.  - Returning to the first folder Press and hold the 5 () button until you hear a beep. ...

Parking brake
To set the parking brake, fully depress the parking brake pedal with your left foot while depressing the brake pedal with your right foot. (Depressing the pedal again releases the parking brake.) ...

Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ...