See also:

RELEASE PARK BRAKE SWITCH
For vehicles with the electric parking brake, this message displays if the switch is pulled while the vehicle is moving. See the electric parking brake information under Parking Brake (Elect ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Exiting the Feature Settings Menu
The feature settings menu will be exited when any of the following occurs: The vehicle is no longer in ON/RUN. The trip/fuel or vehicle information DIC buttons are pressed. The end of the feat ...