2009 Hummer H3T Owner's Manual - Page 100
2009 Hummer H3T Manual
Page 100 highlights
2-34 Features and Controls Press and hold O until CAL displays in the compass window, then release the button. The compass is now in calibration mode. To adjust for compass variance: 1. Find your current location and variance zone number on the following zone map. Compass Display Press z to turn the compass display on or off. For more information on the compass, see Compass on page 2-34 after, in this section. • Drive the vehicle in circles at less than 5 mph (8 km/h) until CAL is no longer displayed in the compass window. Then continue to drive to make sure all eight directions are available. Cleaning the Mirror Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. • Drive the vehicle under normal operating conditions. Compass Compass Calibration The compass may need to be calibrated if CAL is not displayed and the compass requires calibration. Compass Variance The mirror is set to zone eight. If you do not live in zone eight or drive out of the area, the compass variance needs to be changed to the appropriate zone. 2. Press and hold O for six seconds until ZONE displays. Release the button. The compass is now in zone mode. 3. Keep pressing O until the desired zone number displays. Release the button. After four seconds, the new zone number locks in and the compass display returns.