See also:

Door Ajar Messages
DRIVER DOOR OPEN This message will display when the driver door is open. Close the door completely. HOOD OPEN This message will display when the hood is open. Close the hood completely. LE ...

Lumbar Adjustment
Lumbar Adjustment If available, press and hold the front or rear of the control to increase or decrease lumbar support. To raise or lower lumbar support, press and hold the top or bottom of ...

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 ...