2005 Hummer H2 Owner's Manual - Page 120
2005 Hummer H2 Manual
Page 120 highlights
Temperature Display The temperature can be displayed by pressing the TEMP button. Press the TEMP button once briefly to toggle the temperature reading on and off. To alternate the temperature reading between Fahrenheit and Celsius, press and hold the TEMP button for approximately four seconds until the display blinks F and C. Press and release the TEMP button to toggle between the Fahrenheit and Celsius readings. After about four seconds of inactivity, the display will stop blinking and display the last selection made. If an abnormal temperature reading is displayed for an extended period of time (30 minutes), see your GM dealer. Under certain circumstances, a delay in updating the temperature is normal. Compass Operation Press the COMP button briefly to turn the compass on or off. When the ignition and the compass feature are on, the compass will show two character boxes for about two seconds. After two seconds, the mirror will display the compass heading. Compass Calibration The compass may need calibration if one of the following occurs: • If CAL is displayed while driving in the vehicle. • After about 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. Such interference may be caused by a magnetic antenna mount, a 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. Automatic Dimming Mirror Operation Press and hold the TEMP button for about eight seconds to turn the automatic dimming feature on or off. The indicator light to the right of the TEMP button will turn on or off to show when the automatic dimming feature is activated. Once the mirror is turned off, it will remain off until it is turned back on, or until the vehicle is restarted. 2-44