Toyota Avalon Owner's Manual page 17

'06 AVALON_U (L/O 0508)
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
angle of deviation varies according to the
geographic position of the vehicle.
To adjust this deviation, stop the vehicle,
then push and hold the " " switch until
the zone number appears on the display.
Then push the " " switch, referring to
the following map to select the number of
the zone where the vehicle is.
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I n f o r ma t i o n P r o v i d e d b y :