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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.
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.
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