See also:

Turn Signal Lamps
To replace one of these bulbs: 1. Open the liftgate. See Liftgate . A. Push Pin B. Taillamp Cover 2. Pull on push pin (A) to release the taillamp cover (B). 3. Remove the taillamp cover ...

Door Ajar Messages
DRIVER DOOR OPEN This message displays when the driver door is not closed completely. Close the door completely. HOOD OPEN This message displays when the hood is not closed completely. Make s ...

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 ...