See also:

Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in ...

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 ...