3-40Instruments and controls
dimming function is on, the LED indicator 
will illuminate. 
Even with the mirror in the automatic 
dimming mode, the mirror surface turns
bright if the transmission is shifted into
reverse. This is to ensure good rearward
visibility during reversing. . By pressing the compass display but-
ton, the compass display is toggled on or 
off. When the compass is on, an illumi-
nated compass reading will appear in the
upper right corner of the mirror. 
When cleaning the mirror, use a paper 
towel or similar material dampened with
glass cleaner. Do not spray glass cleaner
directly on the mirror as that may cause
theliquidcleanertoenterthemirror
housing and damage the mirror. !
Photosensors
The mirror has a photosensor attached on 
both the front and back sides. During
nighttime driving, these sensors detect
distracting glare from vehicle headlights
behind you and automatically dim the
mirror to eliminate glare and preserve
your vision. For this reason, use care not
to cover the sensors with stickers, or other 
similar items. Periodically wipe the sen- 
sors clean using a piece of dry soft cotton
cloth or an applicator. !
Compass zone adjustmentCompass calibration zones
1. Refer to the “Compass calibration
zones ”map shown above to verify that
the compass zone setting is correct for 
your geographical location. 
2. Press and hold the compass display 
button for 3 seconds until the zone
selection comes up (a number will be
displayed in the mirror compass window). 
3. Press the compass display button 
repeatedly until the correct zone setting
for your location is displayed. 
4. Releasing the button for 5 seconds will 
exit the zone setting mode.