OnStar Services

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Vehicle Storage
WARNING Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 10‑76 for tips on working around a battery wi ...

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 windshield ...

How to Add Coolant to the Coolant Surge Tank for Gasoline Engines
If the vehicle has a diesel engine, see “Cooling System” in the Duramax Diesel Supplement for the proper coolant fill procedure. WARNING You can be burned if you spill coolant on hot engine part ...