GM Service Manual Online
For 1990-2009 cars only

Electronic Compass Programming - Driver Information Center (DIC)

The electronic compass module requires a calibration as required for proper compass operation. Refer to Compass Calibration and Magnetic Variance on how to calibrate the compass from the driver information center (DIC).

Electronic Compass Programming - Inside Rear View Mirror

The compass requires a calibration after the inside rear view mirror is replaced, repaired or as required for proper compass operation. Refer to Compass Calibration and Magnetic Variance on how to calibrate the compass from the inside rear view mirror.