Toyota 2007 Land Cruiser Owner's Manual page 125

Pushing the "AUTO" button for longer
than 3 seconds turns on or off the
compass display.
The compass may not show the correct
direction in the following conditions:
D
The vehicle is stopped immediately af-
ter turning. The compass does not ad-
just while the vehicle is stopped.
D
The ignition switch is turned off imme-
diately after turning.
D
The vehicle is on an inclined surface.
D
The vehicle is in a place where the
earth's magnetic field is subject to in-
terference by artificial magnetic fields
(underground parking, under a steel
tower, between buildings, roof parking,
near a crossing, near a large vehicle,
etc.).
D
The vehicle is magnetized. (There is a
magnet or a metal object on or near
the inside rear view mirror.)
D
The battery has been disconnected.
D
Any door is open.
If the deviation is small, the compass
works to calibrate the direction automati-
cally while the vehicle is in motion.
For obtaining additional precision or for
complete calibrating, see "Calibrating the
compass" below.
112
NOTICE
Do not put magnets or a metal object
near the inside rear view mirror. Do-
ing this may cause malfunction of the
compass sensor.
CALIBRATING THE COMPASS
(deviation calibration)
The direction display on the compass
deviates from the true direction deter-
mined by the earth's magnetic field, The
amount of deviation varies according to
the geographic position of the vehicle.
To adjust for this deviation, stop the ve-
hicle and push the button for longer than
about 6 seconds until the number (1−15)
appears on the display. Then push the
button again, referring to the following
map to select the number of the zone
where the vehicle is.