Auto Dimming Mirror: Programming: Compass: Calibration
Before calibrating compass, drive vehicle to a area that is magnetically clean (free of large metallic objects). Ensure there are no magnetic objects on inside or outside of vehicle close to mirror. Start engine. Press and hold on/off switch until letter "C" is displayed. Drive vehicle in circles at a speed of 5 MPH or less, until "C" is replaced by a proper vehicle heading. Calibration procedure is now complete.