OnStar Services

See also:

Door Ajar Messages
DRIVER DOOR OPEN This message displays and a chime sounds if the driver door is not fully closed and the vehicle is shifted out of P (Park). Stop and turn off the vehicle, check the door for obst ...

License Plate Lamp
To replace one of these bulbs: 1. Open the liftgate. See Liftgate for more information. Passenger Side Shown, Driver Side Similar 2. Push the left end of the lamp assembly towards the ri ...

Automatic Transmission Shift Lock Control Function Check
WARNING! When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough r ...