GM Owner Manuals - Buick

DIC Compass (Uplevel Only)
Your vehicle may have a compass in the Driver
Information Center (DIC).
Compass Zone
The zone is set to zone eight upon leaving the factory.
Your dealer/retailer will set the correct zone for your
location.
Under certain circumstances, such as during a long
distance cross-country trip or moving to a new state
or province, it will be necessary to compensate for
compass variance by resetting the zone through
the DIC if the zone is not set correctly.
Compass variance is the difference between the earth’s
magnetic north and true geographic north. If the compass
is not set to the zone where you live, the compass may
give false readings. The compass must be set to the
variance zone in which the vehicle is traveling.
To adjust for compass variance, use the following
procedure:
Compass Variance (Zone) Procedure
1. Do not set the compass zone when the vehicle is
moving. Only set it when the vehicle is in Park (P).
Press the option button until COMPASS ZONE
displays.
2. Find the vehicle’s current location and variance
zone number on the map.
Zones 1 through 15 are available.
3. Press the set/reset button to scroll through and
select the appropriate variance zone.
4. Press the trip or fuel button until the vehicle
heading, for example, N for North, is displayed
in the DIC.
5. If calibration is necessary, calibrate the compass.
See “Compass Calibration Procedure” following.
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