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prior to initial or re-calibration)
– Drive vehicle in a slow circle for 1.5 revolu-
tions to recalibrate compass
Right Button
•
Press and Release
> Toggles Right Map Light On/Off
ELECTROCHROMIC (EC) OPERATION (auto
dimming feature)
The automatic dimming feature detects forward
and rear light conditions and adjusts the reflec-
tance level of the mirror to eliminate unwanted
glare by the use 2 photoelectric sensors. The feature
can be disabled by depressing the Left and Right
buttons together for more than 5 seconds. The
disable command will only remain in effect until the
ignition is turned off. The EC function will automat-
ically return to ON with each ignition cycle.
When the forward sensor detects daytime condi-
tions, the rear sensor is inactive and the mirror
remains in a high reflectance state.
When nighttime conditions are sensed by the
forward sensor, the rear facing sensor is active and
detects glare from rearward approaching vehicles
or other glare producing light sources. The mirror
will automatically adjust to a low reflectance state
to remove the unwanted glare from the inside rear
view mirror. The mirror will automatically return to
a high reflectance state whenever the vehicle is
placed in REVERSE to ensure a clear view when
backing up.
NOTE: Do not allow the forward or rear
sensors to be obstructed since this may
impair proper performance.
ELECTROCHROMIC (EC) DIAGNOSTICS
Ensure that both the forward and rear sensors
are not obstructed by hang items, tape, stickers,
window decals, etc.
1. With the ignition in the ON position:
Use a flashlight or other light source, to illumi-
nate the forward facing sensor. The mirror should
remain/adjust to a high reflectance state. This
simulates daytime conditions.
Cover the forward facing sensor with a finger or
dark material. Using a flashlight or other light
source, illuminate the rear-facing sensor. The
mirror should dim to a low reflectance state. This
simulates nighttime glare conditions.
Cover the forward and rear facing sensors with
fingers or dark material. The mirror should
remain/adjust to a high reflectance state. This
simulates nighttime non-glare conditions.
2. With the ignition in the ON position, the BRAKE
applied and the vehicle in REVERSE:
GENERAL INFORMATION
Cover the forward facing sensor with a finger or
dark material. Using a flashlight or other light
source, illuminate the rear-facing sensor. The
mirror should remain in a high reflectance state.
This simulates nighttime driving conditions, pro-
viding a clear view while backing up.
If the EC Comp/Temp Mirror does not respond as
indicated, replace the EC Comp/Temp Mirror in
accordance with the Service Information.
COMPASS OPERATION
The compass is capable of distinguishing 8 pri-
mary directions: N, NE, E, SE, S, SW, W, NW. This
electronic compass is designed to display readings
relative to True North. All compasses measure
readings relative to Magnetic North. The difference
between Magnetic North and True North varies
from place to place across the surface of the earth.
Therefore, the compass must be told approximately
where it is on the earth's surface so that the
Magnetic North reading can be properly converted
into a True North Display. This is done by separat-
ing different parts of the earth into numbered Zone
Variances (see zone variance map). The Zone Vari-
ance in which the compass is to function must be
entered into the compass.
FIRST TIME / MANUAL CALIBRATION
Set or confirm the Zone Variance, refer to COM-
PASS ZONE VARIANCE. During first time or man-
ual calibration, the compass may already be cali-
brated (CAL is not displayed). It is recommended
that the CAL mode be invoked under all situations.
With the ignition in the ON position, pressing and
holding the CENTER button for more than 6 sec-
onds will toggle the display to CAL. Releasing the
button after the 6 second duration will enter the
compass into the calibration mode. CAL will remain
illuminated until the calibration is complete. Move
the vehicle to an area away from large metallic
objects or overhead power lines. While CAL is
illuminated in the display the vehicle must be
driven in at least 1 complete 360° circle at less than
5 MPH (8 KPH). Up to 3 complete 360° circles may
be required. The compass will calibrate; CAL will
turn off, and the compass will resume normal
operation.
COMPASS ZONE VARIANCE (adjust compass
for true north)
The compass has a default zone of 8. Refer to the
Zone Variance Map to determine the correct zone
number. The correct compass Zone selection is crit-
ical to proper compass operation. With the ignition
in the ON position, pressing the CENTER button
for 3-6 seconds and then releasing while Z is
illuminated enters the compass into the Zone dis-
play mode. In the Zone display mode, Z will be
5
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