See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Tips and Troubleshooting Chart
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Automatic Fold and Tumble Feature
The transmission must be in P (Park) for this feature to work. WARNING Automatically folding and tumbling the seat when someone is sitting in the seat, could cause injury to the person sittin ...