OnStar Services

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How to Check
Use a good quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning t ...

Oil Pressure Light
WARNING: Do not keep driving if the oil pressure is low. The engine can become so hot that it catches fire. Someone could be burned. Check the oil as soon as possible and have the vehicle serv ...

Other Rainy Weather Tips
Besides slowing down, other wet weather driving tips include: • Allow extra following distance. • Pass with caution. • Keep windshield wiping equipment in good shape. • Keep the windsh ...