With the compass feature on, each time the vehicle is started, the compass will take a few seconds to adjust and display the current compass heading. For example, NE is displayed for north-east.

Press once to turn the compass display on or off.

If after several seconds the display does not show a compass heading, 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 the letter C or CAL appears in the compass window, the compass needs calibration.

Depending on the mirror, in order to calibrate, CAL must be displayed in the mirror compass windows. If CAL is not displayed, press for several seconds or until CAL is displayed.

If the compass has map lamps, it can be placed in calibration mode by pressing and holding the left map light button until a C appears on the compass display.

The mirror compass can be calibrated by driving the vehicle in circles at 5 mph (8 km/h) or less until the display reads a direction.

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:

1. Find your current location and variance zone number on the zone map that follows.



2. Press and hold until a Z and a zone number displays. The compass is now in zone mode.
3. Once the zone number displays, press repeatedly until you reach the correct zone number. Stop pressing and the mirror returns to normal operation.