2005 Chevrolet Impala Owner's Manual - Page 164
2005 Chevrolet Impala Manual
Page 164 highlights
To adjust for compass variance, use the following procedure: Compass Variance Procedure 1. Press the vehicle information button until PRESS V TO CHANGE COMPASS ZONE displays. 3. Press the set/reset button to scroll through and select the appropriate variance zone. Navigate to one of the trip/fuel menu screens to view the direction the vehicle is moving. This will be shown in the top right corner of the DIC display. 4. If you need to calibrate the compass, use the compass calibration procedure. See "Compass Calibration Procedure" following. Compass Calibration The compass can be manually calibrated. Only calibrate the compass in a safe location where driving the vehicle in circles is not a problem. To calibrate the compass, use the following procedure: Compass Calibration Procedure 1. Press the vehicle information button until the PRESS V TO CALIBRATE COMPASS screen is displayed. 2. Press the set/reset button to start the compass calibration. 2. Find the vehicle's current location and variance zone number on the map. Zones 1 through 15 are available. 3. The DIC will display CALIBRATING: DRIVE IN CIRCLES. Drive the vehicle in circles at less than 5 mph (8 km/h) to complete the calibration. The DIC will display CALIBRATION COMPLETE when the calibration is complete. 3-44