Hummer 2006 H3 - Manual (Page 109)

Mirrors
Automatic Dimming Rearview Mirror
with Compass and Temperature
Display
If the vehicle has an automatic dimming mirror, it will
automatically dim to the proper level to minimize
glare from lights behind you after dark.
The mirror also includes a 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.
Temperature Display
The temperature can be displayed by pressing
the TEMP button. Pressing the TEMP button for
approximately four seconds, will toggle the temperature
reading from Fahrenheit (°F) to Celsius (°C).
Automatic Dimming Mirror Operation
Press the TEMP button for approximately eight seconds
to turn the automatic dimming feature on and off. An
indicator light on the bottom of the mirror face will be
on when the automatic dimming feature is on.
Compass Operation
Press the COMP button once briefly to turn the compass
on or off.
When compass feature is on, the compass will show
the direction the vehicle is traveling, with a maximum of
two characters.
Compass Calibration
The compass may need calibration from time to time.
In order to calibrate, CAL must be displayed in the mirror
compass window. If CAL is not displayed, push in the
COMP button for approximately eight seconds or
until CAL is displayed.
The compass can be calibrated by driving the vehicle
in circles at 5 mph (8 km/h) or less until the display
reads a direction, or the word CAL disappears.
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