See also:

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 ...

Special Application Services
. Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi. - Have underbody flushing service performed once a year. ...

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 ...