Mitsubishi ECLIPSE Owner's Manual page 214

Compass variance
Under certain circumstances, as during a long distance cross-
country trip, it will be necessary to adjust for compass vari-
ance.
Compass variance is the difference between the earth's mag-
netic north and the true geographic north. If not adjusted to
account for this compass variance, your compass could give
false readings.
CAUTION
!
Adjust for compass variance when the vehicle is
safely parked.
Although the compass variance can be adjusted at
speeds of less than 2 mph (3 km/h), it should be
adjusted when the vehicle is safely parked.
NOTE
The compass adjustment mode will automatically shut off,
if no adjustment is made within about 10 seconds.
To adjust for compass variance
1. Find your current geographic location and the correct cor-
responding zone number on the zone map.
Features and controls
N00554000011
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