2009 Chevrolet Colorado Owner's Manual - Page 121

Compass Compass Operation Press Y b or depending on the mirror, press turn the display on or off. Compass Variance The mirror is set to zone eight. If you do not live in zone eight or drive out of the area, the compass variance needs to be changed to the appropriate zone. To adjust for compass variance: 1. Find the current location and variance zone number on the following zone map. O once to Compass Calibration The compass may need calibration if: • CAL is displayed while driving in the vehicle. • After approximately five seconds, the display does not show a compass heading, N for North, for example, there may be a strong magnetic field interfering with the compass. Interference can be caused by a magnetic antenna mount, magnetic note pad holder, or a similar magnetic item. • The compass does not display the correct heading and the compass zone variance is set correctly. To calibrate, CAL must be displayed in the mirror compass windows. If CAL is not displayed, press and hold Y b / O for several seconds or until CAL is displayed. The compass can be calibrated by driving the vehicle in circles at 5 mph (8 km/h) or less until the display reads a direction. 2. Press and hold Y number displays. b / O until Z and/or a zone 2-39