Outside Manual Mirrors - GMC 2003 Yukon Owner's Manual

To adjust for compass variance:
1. Find your current location and variance zone
number on the following zone map.
2. Press and hold the COMP button for five seconds
until a zone number appears in the display.
3. Press the COMP button on the bottom of the mirror
until the new zone number appears in the display.
After you stop pressing the button, the display
will show a compass direction within a few seconds.
Passenger Air Bag Indicator
Your mirror may be equipped with a passenger air bag
indicator on the mirror glass, just above the buttons.
If you have this feature the mirror will display the word
ON, or an airbag symbol in Canada, when the
passenger air bag is enabled. For more information see
Passenger Sensing System on page 1-81

Outside Manual Mirrors

Adjust your outside mirrors so you can just see the side
of your vehicle and have a clear view of objects
behind you. The mirrors can be folded in to enter
narrow areas.
The use of hood-mounted air deflectors and add-on
convex mirror attachments may adversely affect mirror
performance.
2-45