To Calibrate the Compass

Put the CMTC into COMPASS/TEMP mode using the STEP button.
Depress the STEP and US/M buttons simultaneously until CAL appears in the display.
Drive the vehicle in about two circles on a level surface in an area free of large metal objects, such as other vehicles, large buildings, bridges, underground cables, railroad tracks, etc. See Fig 1.

NOTE: The compass will usually calibrate after the vehicle has been driven in a circle comprising five quadrants or one and a quarter turns.

When the "CAL" indicator goes off, the compass is calibrated and should display correct headings (for all conditions). Verify proper calibration by checking North (N), South (S), East (E) and West (W). If the compass does not appear accurate, repeat the calibration procedure in another area.

Fig 1: Compass Calibration

Courtesy of DAIMLERCHRYSLER CORP.

1 - RADIUS = 15'- 45' / SPEED = 7-10 mph