2002 Ford F250 Owner Guide 5th Printing - Page 56

Driver Controls Magnetic or metallic objects placed in or on the vehicle may also affect compass accuracy. Adjustments may need to be made to the zone and calibration of the compass. Compass zone adjustment 1. Determine which magnetic zone you are in for your geographic location by referring to the zone map. 2. Locate the trip computer on the overhead console. 3. Turn ignition to the ON position. 3 2 4 5 1 15 14 13 12 6 7 8 9 1011 4. Press and hold both trip computer controls. After approximately four seconds, the trip computer will enter zone setting mode. Zone setting mode is indicated when the display lights the "ZONE" indicator. 5. Release both controls. Subsequent pressing of either control will increment the zone. Press the control repeatedly until the correct zone setting for your geographic location is displayed on the trip computer. 6. To exit the zone setting mode and save the displayed zone in memory, release both controls for greater than five seconds. Compass calibration adjustment Perform this adjustment in an open area free from steel structures and high voltage lines. For optimum calibration, turn off all electrical accessories (heater/air conditioning, wipers, etc.) and make sure all vehicle doors are shut. 1. Locate the trip computer located in the overhead console. 2. Start the vehicle. 56