See also:

Compass Variance (Zone) Procedure
1. Do not set the compass zone when the vehicle is moving. On an automatic transmission vehicle, only set it when the vehicle is in P (Park). On a manual transmission vehicle, only set it w ...

Digital Signal Processing (DSP)
If the radio has this feature, it has either a Bose® sound system or a Bose® 5.1 Cabin Surround® sound system. DSP is used to provide a choice of different listening experiences. To choose ...

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 ...