There is a compass display on the upper right corner of the mirror.
Press to turn the compass display on or off.
Press and hold to activate the compass calibration mode. CAL displays in the compass window on the mirror.
The compass can be calibrated by driving the vehicle in circles at 5 mph (8 km) or less until the display reads a direction.
If after a few seconds the display does not show a compass direction, (N for North for example), there may be a strong magnetic field interfering with the compass. Interference can be caused by a magnetic antenna mount, note pad holder, or similar object. If CAL appears in the compass window, the compass may need to be reset or calibrated.
The mirror is set to zone eight. If you do not live in zone eight or drive out of the area, the compass variance needs to be changed to the appropriate zone.
To adjust for compass variance: