Buick 2007 Automobile User Manual


 
Automatic Dimming Rearview Mirror
with Compass
Your vehicle may have an automatic dimming
rearview mirror with a compass. This feature
enables the mirror to sense nighttime glare from
vehicle headlamps from behind and automatically
dim to reduce the glare to a safe level. The
automatic dimming feature turns on each time the
vehicle is started.
O (On/Off): This is the on/off button.
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 indicator light, located to the left
of the on/off button, is on. If it’s not, press and
hold the on/off button until the 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 until
the indicator light turns off.
Compass Operation
Press the on/off button once to turn the compass
on or off.
When the ignition and the compass feature are
on, the compass will show two character boxes for
a few seconds. After a few seconds, the mirror
will display the current compass direction.
Compass Calibration
If after a few seconds the display does not show a
compass direction, (N for North for example), there
may be a strong magnetic field interfering with the
compass. Such interference may be caused by a
magnetic antenna mount, note pad holder, or
similar object. If the letter C or CAL appears in the
compass window, the compass may need to be
reset or calibrated.
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.
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