Full-Size Spare Tire

If this vehicle came with a full-size spare tire, it was fully inflated when new, however, it can lose air over time. Check the inflation pressure regularly. See Tire Pressure   and Vehicl ...

Jump Starting

For more information about the vehicle battery, see Battery  . If the vehicle is a hybrid, see the hybrid supplement for more information. If the vehicle's battery has run down, you may wan ...

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 ...

Side Blind Zone Alert (SBZA)
If available, the Side Blind Zone Alert system is a lane changing aid that assists drivers with avoiding crashes that occur with vehicles in the side blind zones. WARNING SBZA does not detect v ...

Overriding the speed and follow mode
Whenever the driver is overriding the ACC by depressing the accelerator pedal, the ACC will not automatically apply the brakes to maintain separation from any vehicle ahead. The set speed and gap ...