2003 GMC Yukon Owner's Manual - Page 137

Passenger Air Bag Indicator Your vehicle may be equipped with a passenger air bag indicator, on the mirror glass, just above the buttons. If your vehicle has this feature, the mirror will display the word ON, or an air bag symbol in Canada, when the passenger air bag is enabled. For more information, see Passenger Sensing System on page 1-81. Temperature Display The temperature can be displayed by pressing the TEMP button. Pressing the TEMP button once briefly, will 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 approximately four seconds of inactivity, the display will stop blinking and display the last selection made. Press and release the TEMP button to toggle the temperature display between Fahrenheit or Celsius. If an abnormal reading is displayed, for an extended period of time, please consult your dealer. Under certain circumstances, a delay in updating the temperature is normal. Cleaning the Mirror When cleaning the mirror, use a paper towel or similar material dampened with glass cleaner. Do not spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing. Automatic Dimming Rearview Mirror with Compass and Temperature Display If your vehicle is equipped with an electrochromic mirror, it will, when on, automatically dim to the proper level to minimize glare from lights behind you after dark. The mirror also includes a display in the upper right corner of the mirror face. The compass reading and the outside temperature will both appear in the display at the same time. The dual display can be turned on or off by briefly pressing either the TEMP or the COMP button. Electrochromic Mirror Operation The time period you need to press and hold the TEMP button to turn the electrochromic feature on or off is approximately eight seconds. The indicator light to the left of the TEMP button will still turn on or off to show you when the electrochromic 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. 2-43