See also:

Automatic Fold and Tumble Feature
The transmission must be in P (Park) for this feature to work. WARNING Automatically folding and tumbling the seat when someone is sitting in the seat, could cause injury to the person sittin ...

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 ...

BATTERY VOLTS LOW
This message displays when the electrical system is charging less than 10 volts or the battery has been drained. If this message appears immediately after starting the engine, it is possibl ...