Calibrating The Compass (Deviation Calibration) - Lexus RX300 2003 Owner's Manual

16R297
" Compass sensor
NOTICE
Do not put magnets or a metal object on or near the
inside rear view mirror of the vehicle. Doing this may
cause malfunction of the compass sensor in the mirror.
Calibrating the compass
(deviation calibration)
The direction display on the compass deviates from the true
direction determined by the earth's magnetic field. The angle
of deviation varies according to the geographic position of the
vehicle.
To adjust for this deviation, stop the vehicle 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.