OnStar Services

See also:

Tires
Use a stiff brush with tire cleaner to clean the tires. Notice: Using petroleum-based tire dressing products on the vehicle may damage the paint finish and/or tires. When applying a tire dressing, al ...

Jump Starting (with or without eAssist)
For more information about the vehicle battery, see Battery. If the battery has run down, try to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following ...

Power Lumbar
On vehicles with power lumbar, the control is located on the outboard side of the front seats. For vehicles with a two-way lumbar control, press the control top or bottom to increase or decreas ...