2007 Pontiac Grand Prix Owner's Manual - Page 198

RANGE: This screen displays the approximate number of remaining miles or kilometers the vehicle can be driven without refueling. This estimate is based on the average fuel economy for the amount of fuel remaining in the fuel tank and the current driving conditions. This estimate will change if driving conditions change. For example, if driving in traffic and making frequent stops, the display may read one number, but if the vehicle is driven on a freeway the number may change even though the same amount of fuel is in the fuel tank. This is because different driving conditions produce different fuel economies. Generally, freeway driving produces better fuel economy than city driving. If the fuel tank contains less than 2 gallons (7.6 L), the LOW FUEL message will appear on the DIC screen. Fill the fuel tank as soon as possible to avoid running out of fuel. See "Low Fuel" under DIC Warnings and Messages on page 200. Press the fuel button again to advance to the next screen. DIC Compass (Uplevel DIC) Your vehicle may have a compass in the Driver Information Center (DIC). Setting the Compass The compass is self-calibrating, which eliminates the need to manually set the compass. However, under certain circumstances, such as during a long distance cross-country trip, it will be necessary to compensate for compass variance and reset the zone through the DIC. Compass variance is the difference between the earth's magnetic north and true geographic north. If not adjusted to account for compass variance, the compass in the vehicle could give false readings. In order to do this, the compass must be set or calibrated to the variance zone in which the vehicle is traveling. 198