Manual Rearview Mirror With Onstar And Compass; Compass Display; Compass Calibration - GMC 2005 Envoy Owner's Manual

Manual Rearview Mirror with
®
OnStar and Compass
The vehicle may have a manual rearview mirror with
®
OnStar and an eight-point compass display located
in the upper right.
Control buttons for the OnStar
bottom of the mirror. See your GM dealer for more
information on the OnStar
System on page 2-47 for more information about the
®
services OnStar provides.
Mirror Operation
While sitting in a comfortable position, adjust the
rearview mirror so you can see clearly behind your
vehicle. Grip it in the center and move it up or down
and side to side. The day/night control, located at
the bottom of the mirror, adjusts the mirror to reduce
headlamp glare from behind during evening or dark
conditions. Push the control for daytime use; pull it
for night use.
2-40
®
system are at the
®
system. Also, see OnStar

Compass Display

O (On/Off): Press this button to turn the compass
on or off. The compass display, can show a maximum
of two characters. For example, NE is displayed for
north-east.
When the ignition and the compass/temperature
feature are on, character boxes will appear for about
two seconds. After two seconds, the mirror will display
®
the direction the vehicle is facing.

Compass Calibration

When on, the compass automatically calibrates as
the vehicle is driven. If, after two 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, 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.
Press and hold the on/off button for nine seconds to
activate the compass calibration mode. CAL will
be displayed in the compass window on the mirror.
The mirror can be calibrated by driving the vehicle
in circles at 5 mph (8 km/h) or less until the display
shows a direction.