OnStar Services

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 whe ...

Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. - Avoid fast starts and accelerate smoothly. - Brake gradually and avoid abrupt st ...

Cooling System
The cooling system allows the engine to maintain the correct working temperature. When it is safe to lift the hood: A. Electric Engine Cooling Fan(s) (Out of View) B. Coolant Surge Tank and ...