OnStar Services

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If No Steam Is Coming From YourEngine
If you get an engine overheat warning but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you: • Climb a long hill on a hot day. â ...

Rear Seats
Folding the Seatback Either side of the seatback can be folded down for more cargo space. Fold a seatback only when the vehicle is not moving. Notice: Folding a rear seat with the safety belts stil ...

When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on engine revolutions and engine temperature, and not on mileage. Based on driving condi ...