See also:

Rear Vision Camera (RVC)
The vehicle may have a rear vision camera system. Read this entire section before using it. WARNING The RVC system does not display pedestrians, bicyclists, animals, or any other object located outs ...

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 vehic ...

Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your tires and transmit tire pressure readings ...