2008 GMC Envoy Owner's Manual - Page 186

Fuel Information Button t (Fuel Information): Press the fuel information button to scroll through the range, fuel used, average fuel economy, and the engine oil life system. Fuel Range: Press the fuel information button until RANGE appears on the display. This mode shows the remaining distance you can drive without refueling. It is based on fuel economy and the fuel remaining in the fuel tank. The display will show LOW if the fuel level is low. The fuel economy data used to determine fuel range is an average of recent driving conditions. As your driving conditions change, this data is gradually updated. Fuel range cannot be reset. Fuel Used: Press the fuel information button until FUEL USED appears on the display. This mode shows the number of gallons or liters of fuel used since the last reset of this menu item. To reset the fuel used information, press and hold the select button for one second while FUEL USED is displayed. Average Fuel Economy: Press the fuel information button until AVG. ECON appears on the display. This mode shows how many miles per gallon (MPG), liters per 100 kilometers (L/100 km), or kilometers per liter (km/L) your vehicle is getting based on current and past driving conditions. Press and hold the select button for one second while AVG. ECON is displayed to reset the average fuel economy. Average fuel economy will then be calculated starting from that point. If the average fuel economy is not reset, it will be continually updated each time you drive. Engine Oil Life System: Press the fuel information button until ENGINE OIL LIFE appears on the display. The engine oil life system shows an estimate of the oil's remaining useful life. It will show 100% when the system is reset after an oil change. It will alert you to change the oil on a schedule consistent with your driving conditions. Always reset the engine oil life system after an oil change. To reset the engine oil life system, see Engine Oil Life System on page 5-19. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule in this manual. See Engine Oil on page 5-16 and Scheduled Maintenance on page 6-4. 3-52