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Compass Operation
The mirror has an eight-point compass display in
the bottom of the mirror face.
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 current compass
heading. For example, NE is displayed for
north-east.
Compass Calibration
If after two seconds the display does not show a
compass heading, there may be a strong magnetic
eld interfering with the compass. Such interference
may be caused by a magnetic antenna mount, note
pad holder or similar object. If the letter C appears
in the compass window, the compass needs
calibration.The mirror compass can be calibrated by driving
the vehicle in circles at 5 mph (8 km/h) or less until
the display reads a direction.
The compass can be placed in calibration
mode by pressing and holding the left map light
button until a C appears on the compass display.
Compass Variance
Compass variance is the difference between
earth’s magnetic north and true geographic
north. If the mirror is not adjusted for compass
variance, your compass could give false readings.
The mirror is set in zone eight upon leaving the
factory. It will be necessary to adjust the compass
to compensate for compass variance if you live
outside zone eight. Under certain circumstances,
such as a long distance, cross-country trip, it
will be necessary to adjust the compass variance.
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To adjust for compass variance, do the following:
1. Find your current location and variance
zone number on the zone map that follows.
2. Press and hold the on/off button untilaZand
a zone number appears on the display. The
compass is now in zone mode.3. Once the zone number appears on the display,
press the on/off button quickly until you reach
the correct zone number. Stop pressing the
button and the mirror will return to normal
operation. If C appears in the compass
window, the compass may need calibration.
See “Compass Calibration” listed previously.
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 Compass
If the vehicle has this feature, an automatic
dimming mirror automatically dims to the proper
level to minimize glare at night from lights
behind your vehicle.
The mirror also includes a compass display in
the upper right corner of the mirror face.
P(On/Off):This is the on/off button.
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Automatic Dimming Mirror Operation
The automatic dimming mirror function is turned on
each time the ignition is started. A light near the
on/off button will come on to indicate the automatic
dimming is on.
Press the on/off button for about six seconds to
manually turn the automatic dimming function
on or off.
Compass Display
Press the on/off button, located to the far left,
brie y to turn the compass display on or off.
If the display reads CAL, the compass needs to
be calibrated. For more information, see “Compass
Calibration” later in this section.
To adjust between Fahrenheit and Celsius:
1. Press and hold the on/off button for
approximately four seconds until either
a ashing °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.
If an abnormal temperature reading is displayed
for an extended period of time, please consult your
dealer. Under certain circumstances, a delay in
updating the temperature is normal.
Compass Variance
Compass variance is the difference between
earth’s magnetic north and true geographic north.
If not adjusted to account for compass variance,
the mirror’s compass could give false readings.
The mirror is set in zone eight upon leaving
the factory. It will be necessary to adjust the
compass to compensate for compass variance
if you live outside of zone eight. Under certain
circumstances, as during a long distance
cross-country trip, it will also be necessary
to adjust for compass variance.
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OnStar®service cannot work unless your vehicle is
in a place where OnStar®has an agreement with a
wireless service provider for service in that area.
OnStar
®service also cannot work unless you are
in a place where the wireless service provider
OnStar
®has hired for that area has coverage,
network capacity and reception when the service is
needed, and technology that is compatible with the
OnStar
®service. Not all services are available
everywhere, particularly in remote or enclosed
areas, or at all times.
OnStar
®service that involves location information
about your vehicle cannot work unless GPS
satellite signals are unobstructed and available
in that place as well.Your vehicle must have a working electrical
system (including adequate battery power) for the
OnStar
®equipment to operate. There are other
problems OnStar®cannot control that may prevent
OnStar®from providing OnStar®service to you
at any particular time or place. Some examples are
damage to important parts of your vehicle in an
accident, hills, tall buildings, tunnels, weather
or wireless phone network congestion.
Your Responsibility
You may need to increase the volume of your radio
to hear the OnStar®advisor. If the light next to the
OnStar®buttons is red, this means that your system
is not functioning properly and should be checked
by a dealer. If the light appears clear (no light is
appearing), your OnStar
®subscription has expired.
You can always press the OnStar®button to
con rm that your OnStar®equipment is active.
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