1999 Ford F250 Owner's Manual - Page 20
1999 Ford F250 Manual
Page 20 highlights
Instrumentation 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. 1 2 3 13 4 12 5 6 7 8 9 10 11 15 14 4. Press and hold both trip computer controls. After approximately four seconds, the trip MODE E/M 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. 20