Compass Calibration and Variance Procedures
WARNING: This page is about a different car, the 2006 Isuzu Ascender, 2006 GMC Envoy XL, 2006 GMC Envoy, 2006 Chevrolet TrailBlazer, and 2006 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
When the inside rearview mirror with compass is replaced, the compass must be setup utilizing the Compass Calibration and Variance Procedure in Stationary Windows.