See also:

Headlamp Aiming
The vehicle has a visual optical headlamp aiming system. The aim of the headlamps have been preset at the factory and should need no further adjustment. However, if the vehicle is damaged in a cr ...

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 ...

Transmission
Automatic Transmission P: Park R: Reverse N: Neutral D: Drive Manual Mode Move the selector lever from D (Drive) to the left. Press the shift lever forward (+) to upshift or rearward (&# ...