OnStar

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Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include: • Keep the vehicle serviced and in good shape ...

When the System Does Not Seem To Work Properly
Occasional missed alerts can occur under normal circumstances and will increase in wet conditions. The system does not need to be serviced due to an occasional missed alert. The number of missed ...

Rear Seat Pass-Through
Your vehicle has a small door in the rear seat. This door allows you to access the trunk from inside the vehicle. The rear seat armrest must be down for the pass-through door to open. To release ...