2008 Nissan Altima Owner's Manual - Page 85

You can also calibrate the compass by driving your vehicle on your everyday route. The compass will be calibrated once it has tracked three complete circles. Once the desired zone number is displayed, stop pressing the MODE button and the display will show compass direction within a few seconds. NOTE: Use zone number 5 for Hawaii. COMPASS DISPLAY Push the button when the ignition switch is in the ON position. The direction will be displayed. Zone variation change procedure The difference between magnetic north and geographical north is known as variance. In some areas, this difference can sometimes be great enough to cause false compass readings. Follow these instructions to set the variance for your particular location if this happens: 1. Establish your location on the zone map. Refer to the illustration. Record your zone number. 2. Turn the ignition switch to the ON position. 3. Push the MODE button in for 5 seconds until the current zone entry number and the "VAR" icon is displayed. 4. Press the MODE button repeatedly until the desired zone entry number is displayed. Instruments and controls 2-7