2008 Toyota Tundra Owners Manual - Page 444

07 11.20 Perform circling calibration just after you have purchased your Toyota. And then always perform circling calibration after the battery has been removed, replaced or disconnected. XS10009a LS10039 D Do not perform circling calibration of the compass in a place where the earth's magnetic field is subject to interference by artificial magnetic fields (underground parking, under a steel tower, between buildings, roof parking, near a crossing, near a large vehicle, etc.). CALIBRATING THE COMPASS (circling calibration) Sometimes the direction display on the compass may not change after a turn. To rectify this, stop the vehicle and push and hold the " " switch until "CAL" appears on the display. If "CAL" appears on the display because of a drastic change in the magnetic field, perform circling calibration. Drive the vehicle in a circle at 8 km/h (5 mph) or less. If there is not enough space to drive in a circle, drive around the block. After driving 1 to 3 circles in the above method, calibration is completed when the direction is shown on the display. If calibration cannot be performed because of the magnetized vehicle etc., take your vehicle to Toyota dealer. D During calibration, do not operate electric systems (moon roof, power windows, etc.) as they may interfere with the calibration. CAUTION D When doing the circling calibration, be sure to secure a wide space, and watch out for people and vehicles in the neighborhood. Do not violate any local traffic rules while performing circling calibration. D Do not adjust the display while the vehicle is moving. Be sure to adjust the display only when the vehicle is stopped. 414 2008 TUNDRA from Apr. '08 Prod. (OM34477U)