Compass Variance (Zone) Procedure
1. Do not set the compass zone when the vehicle is moving.
Only set it when the vehicle is in P (Park).
Press the vehicle information button until PRESS 
TO CHANGE 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/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.
See also:
Purposeful design
From every angle, the All Terrain HD looks the part of a dedicated off-road
performer, with bold, accentuated features complemented by a wide stance and
tall profile.
Streamlined bumpers are des ...
Transferring a Call
Audio can be transferred between the Bluetooth system and the cell phone.
The cell phone must be paired and connected with the Bluetooth system before a call can be transferred. The connection proces ...
Fuel
For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement.
For Vehicles with gasoline engines, please read this. ...