OnStar Services

See also:

Gasoline Octane
If the vehicle has the 3.9L V6 engine (VIN Code 1) or the 3.9L V6 engine (VIN Code M), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less tha ...

Power Driver Seat
To adjust a power driver seat, if equipped: . Move the seat forward or rearward by sliding the control forward or rearward. . Raise or lower the front part of the seat cushion by moving the fron ...

Vehicle Information Menu Items
Press MENU on the turn signal lever until Vehicle Information Menu is displayed. Use to scroll through the following menu items: • Unit • Tire Pressure • Jump Start (eAssist Only) • ...