Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher.
If the octane rating is less than 87, an audible knocking noise, commonly
referred to as spark knock, might be heard when d ...
License Plate Lamp
(Wagon)
To replace one of these bulbs:
1. Open the liftgate. See Liftgate for more
information.
Passenger Side Shown, Driver Side Similar
2. Push the left end of the lamp
assembly toward the right.
...
Change Compass Zone
The vehicle may have this feature.
To change the compass zone
through the DIC, see Compass. ...






