Lexus IS F 2012 Owner's Manual page 366

3-7. Other interior features
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 the switch, and referring to the map above, select the num-
STEP 3
ber of the zone where you are.
If the direction is displayed several seconds after adjustment, the cali-
bration is complete.
366
Press the switch until a number (1
to 15) appears on the compass dis-
play.