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Automatic Dimming Rearview Mirror
with OnStar
®
, Compass and
Temperature Display
The vehicle may have this feature. When on, an
automatic dimming mirror automatically dims to the
proper level to minimize glare from lights behind
you after dark.
The mirror also includes a dual display in the upper
right corner of the mirror face. The compass reading and
the outside temperature will both appear in the display
at the same time.
P (On/Off): This is the on/off button.
Temperature and Compass Display
Press the on/off button, located to the far left, briefly to
turn the comp/temp display on or off.
If the display reads CAL, the compass needs to be
calibrated. See the information following on calibration.
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.
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’s 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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