Cadillac 2007 DTS - Manual (Page 130)

Cleaning the Mirror
When cleaning the mirror, use a paper towel or
similar material dampened with glass cleaner.
Do not spray glass cleaner directly on the mirror
as that may cause the liquid cleaner to enter
the mirror housing.
Automatic Dimming Rearview Mirror
with OnStar
® and Compass
Your vehicle may have an automatic dimming
rearview mirror with a compass display. The mirror
also contains OnStar
® controls. For more
information see OnStar ® System on page 135.
The mirror includes an eight-point compass
display in the upper right corner of the mirror face.
When on, the compass automatically calibrates
as the vehicle is driven.
Mirror Operation
O (On/Off): Press and hold the button, located
on the lower left side of the mirror face, for
about three seconds to turn the automatic dimming
feature on or off. The indicator light will illuminate
when this feature is active. The automatic dimming
feature is active each time the vehicle is started.
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 about two seconds. After two seconds,
the mirror will display the compass heading.
Compass Calibration
If after two seconds, the display does not show a
compass heading (for example, N for North),
there may be a strong magnetic field interfering
with the compass. Such interference may be
caused by a magnetic antenna mount, magnetic
note pad holder or a similar magnetic item.
If the letter C should ever appear in the compass
window, the compass may need calibration.
130