Compass Operation; Compass Calibration - GMC 1998 Yukon Owner's Manual

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Compass Operation
Mirror Operation
The right side of the switch located at the bottom of the
mirror turns the electrochromic mirror on and off. The
AUTO LED will come
o n
when the electrochromic
mirror is turned on. To turn the mirror on, press
and hold the MIRROR button for three seconds. The
mirror will darken and remain dark until the button is
released. To turn the mirror off, press and release the
MIRROR button.
Press the COMP switch once briefly to turn the compass
on or off.
When the ignition and the compass feature are
on, the
compass will show two character boxes for
approximately two seconds. After two seconds, the
mirror will display the compass heading.
When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner. Do not spray
liquid cleaner to enter the mirror housing.
L .
elass cleaner directly on the mirror as that may cause the
Compass Calibration
If, after two seconds, the display does not show
a
compass heading
(-.N''
for North, for example), there
may be a strong magnetic field interfering with the
compass. Such interference may be c.aused 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 mirror may
need calibration.
2-45

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1998 suburban

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