See also:

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. When the Light Is O ...

Memory Features
On vehicles with the memory package, memory buttons 1 and 2 on the driver door are used to save and recall memory settings for the driver seat cushion and seatback, outside mirrors, and th ...