TOYOTA 2011 Tundra - Manual (Page 534)

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3-8. Other interior features
n Deviation calibration
Stop the vehicle where it is safe to drive in a circle.
Press the switch until a number (1 to 15) appears on the com-
pass display.
Type A
Type B
Press the switch, and referring to the map above, select the
number of the zone where you are.
If the direction is displayed several seconds after adjustment, the
calibration is complete.