2006 Hummer H2 Owner's Manual - Page 117

Automatic Dimming Rearview Mirror with OnStar®, Compass and Temperature Display You may have OnStar® as a feature on this mirror. For information on the OnStar® system, see OnStar® System on page 2-48 or consult the OnStar® manual. The automatic dimming mirror dims to the proper level to minimize glare from lights behind you after dark. The mirror includes a compass reading and outside temperature display in the upper right corner of the mirror. Temperature and Compass Display Press the on/off button to cycle between °F, °C and off. Repeat the key press to cycle between the three display modes. The compass/temperature display will default on at each new ignition cycle. For more information, see "Compass Calibration" later in this section. If an abnormal temperature reading is displayed for an extended period of time, please consult your dealer. Under certain circumstances, a delay in updating the temperature is normal. Automatic Dimming Mirror Operation Press and hold the on/off button for about three seconds to turn the automatic dimming feature on or off. The indicator light to the left of the on/off button will turn on or off to show when the automatic dimming feature is activated. Release the button to toggle the automatic dimming feature on/off. The automatic dimming feature will default on at each new ignition cycle. P On/Off: Press this button to operate the automatic dimming, compass and temperature features. Your vehicle may also have a Rear Vision Camera. Briefly press the button located to the right of the on/off button to turn the display off. The right hand green indicator will be illuminated when the display is turned off. To turn the display on, press the right hand button to turn the LCD display on. The green indicator will be illuminated when the display is turned on. See Rear Vision Camera on page 3-18 for more information. 2-41