2009 GMC Canyon Owner's Manual - Page 120

Temperature Display Y b / O (On/Off): Press Y b or depending on the mirror, press O to turn the display on or off. To adjust between Fahrenheit and Celsius: 1. Press and hold Y b / O for a few seconds. The current unit of measure (F or C) flashes. 2. Press Y b / O again and release to change the unit of measure. Wait several seconds and the compass/temperature display returns with the selected unit of measure. It is normal under certain conditions for the temperature update to be delayed. If an incorrect temperature displays for an extended period, see your dealer/retailer. Compass Compass Operation Press Y b or depending on the mirror, press turn the display on or off. 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. Cleaning the Mirror Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. • 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. 2-38