See also:

Rear Window Defogger
(Rear Window Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off automatically after about 10 minutes. If turned on again it runs for about five minute ...

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 ...