Electronic Compass Programming - Driver Information Center (DIC)
WARNING: This page is about a different car, the 2008 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
The electronic compass module requires a calibration as required for proper compass operation. Refer to Compass Calibration and Magnetic Variance (Driver Information Center (DIC)) or Compass Calibration and Magnetic Variance (Mirror) on how to calibrate the compass from the driver information center (DIC).