Lexus ES300 Owner's Manual page 120

COMFORT ADJUSTMENT
16R198
"Zone number
Leaving the system after the calibration for several seconds,
the direction will appear on the display. It shows the zone
number is set.
106
CAUTION
Do not adjust the display while the vehicle is moving.
Be sure to adjust the display only when the vehicle is
stopped.
Calibrating the compass (circling calibration)
To rectify the compass, stop the vehicle and push and hold the
"COMP" switch until "C" appears on the display.
There is also a case that "C" appears on the display in case of
the drastic change of the magnetic field.