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 ...

Adjusting the Speakers (Balance/Fade)
BAL/FADE (Balance/Fade): To adjust balance or fade, press the if the radio has this symbol, or the knob until the speaker control tabs display. Continue pressing to highlight the desire ...

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 ...