Temperature And Compass Display; Automatic Dimming Mirror Operation - GMC 2006 Yukon XL Owner's Manual

Temperature and Compass Display

Press the on/off button, located to the far left, briefly
to turn the compass/temperature display on or off.
If the display reads CAL, the compass needs to
be calibrated. For more information, see "Compass
Calibration" following.
To adjust between Fahrenheit and Celsius, do the
following:
1. Press and hold the on/off button for approximately
four seconds until either a flashing F or C appears.
2. Press the button again to change the display to the
desired unit of measurement. After approximately
four seconds of inactivity, the new unit will be
locked in and the compass/temperature display
will return.
If an abnormal temperature reading is displayed for an
extended period of time, please see your GM dealer.
Under certain circumstances, a delay in updating
the temperature is normal.
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Automatic Dimming Mirror Operation

The automatic dimming mirror function is turned
on automatically each time the ignition is started.
To operate the automatic dimming mirror, do the
following:
1. Make sure the green indicator light, located to the
left of the on/off button, is lit. If it is not, press and
hold the on/off button for approximately six seconds
until the green light comes on, indicating that the
mirror is in automatic dimming mode.
2. Turn off the automatic dimming mirror function
by pressing and holding the on/off button for
approximately six seconds, until the green
indicator light turns off.