2008 Hummer H3 Alpha Owner's Manual - Page 113
2008 Hummer H3 Alpha Manual
Page 113 highlights
Automatic Dimming Mirror Operation The automatic dimming mirror comes on each time the ignition is turned to start. To turn the automatic dimming feature off or back on, press and hold Y for nine seconds. The indicator light on the mirror is lit when the automatic dimming feature is on. • If the temperature is 37°F (3°C) or lower, ICE will flash on the temperature display. This display will flash every two seconds for a period of one minute. If an abnormal temperature reading is displayed for an extended period of time, see your dealer/retailer. Under certain circumstances, a delay in updating the temperature is normal. Temperature Display To adjust between Fahrenheit and Celsius: Compass Display Press the Y button, located at the bottom of the mirror, next to the OnStar® control buttons to turn the compass/temperature display on or off. If CAL is not displayed, press and hold Y for 15 seconds, or until CAL is displayed. The compass is now in calibration mode. For more information, see "Compass Calibration" following. The mirror can be calibrated in one of two ways: • Press Y for approximately four seconds to toggle the display from F (Fahrenheit) to C (Celsius) to OFF. The temperature display will remain in its current state each time the ignition goes through its cycle. • At start up, if the vehicle has been off for less than two and a half hours, and the last stored temperature was less than the current termperature, the sensor will increase 1°F every two minutes until the correct temperature is displayed. • Drive the vehicle in circles at less than 5 mph (8 km/h) until the CAL is no longer displayed in the compass window. Then continue to drive to make sure all eight directions are available. • If the vehicle has been off more than two and a half hours, or the last stored temperature is greater than the current temperature, the current temperature immediately displays. • Drive the vehicle under normal operating conditions. 2-39