2009 Cadillac CTS Owner's Manual - Page 201

DIC Compass The vehicle may have a compass in the Driver Information Center (DIC). Compass Zone The zone is set to zone eight. If you do not live in zone eight or drive out of the area, the variance needs to be changed to the appropriate zone. 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. On an automatic transmission vehicle, only set it when the vehicle is in P (Park). On a manual transmission vehicle, only set it when the vehicle is stopped. Press the vehicle information button until Press V 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. Calibrate the compass. See "Compass Calibration Procedure" following. 3-55