Lexus IS 350C 2012 Manual page 391

Calibrating the compass
The direction display deviates from the true direction determined by the
earth' s magnetic field. The amount of deviation varies according to the
geographic position of the vehicle.
If you cross over a map boundary shown in illustration, the compass will devi-
ate.
To obtain higher precision or perfect calibration, refer to the following.
■ Deviation calibration
Stop the vehicle.
STEP 1
STEP 2
Press "AUTO", and referring to the map above, select the number
STEP 3
of the zone where you are.
3-7. Other interior features
Press "AUTO" until a number (1 to
15) appears on the compass dis-
play.
3
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