OnStar

See also:

Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel as ...

Check Gages Warning Light
The check gages light will come on briefly when you are starting the engine. If the light comes on and stays on while you are driving, check your coolant temperature and engine oil pressure ...

System Identification
If the vehicle has the tire sealant and compressor kit shown above, see the operating instructions that follow. If the vehicle has the tire sealant and compressor kit shown above, follo ...