1998 Chevrolet Blazer Owner's Manual - Page 123

Temperature and Compass Display Before you turn on the ignition and move thevehicle, the temperature indicated will be the last outside temperature recorded with the ignition on. If the outside temperature is 37 O (3 "C) or lower when F you turn on the ignition, ICE will appear on the display. This is a warning to the driver that road conditions may be icy, andthat appropriate precautions should be taken. The compass is self-calibrating, so it does not need tobe manually set. However, when your vehicle is new, the compass may function erratically.If it does, CAL (Calibration) will appear on the display. To correct the problem, drive in a complete 360" circle three times, and the compass will function normally. Variance is the difference between magnetic north and geographic north. In some areas, the difference between the two can begreat enough to cause false compass readings. If this happens, follow these instructions to set the variancefor your particular location: The outsideair temperature and the compass are displayed at the frontof the overhead console. The control switches are located to the left of the display. Turn the display on or off by pressing the ON/OFF switch. Display the temperature in either degrees Fahrenheit (English) or Celsius (metric) by pressing the USMET switch. 2-49