2006 Toyota Highlander Owners Manual - Page 291

'06 HIGHLANDER HB_U (L/O 0503) 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 this deviation, stop the vehicle, then push and hold the "COMP" switch until the zone number appears on the display. Then push the "COMP" switch, referring to the following map to select the number of the zone where the vehicle is. 278 2006 HIGHLANDER (Hybrid) from Mar. '05 Prod. (OM48530U)