2008 GMC Sierra 1500 Pickup Owner's Manual - Page 191

Fuel Used Press the trip/fuel button until FUEL USED displays. This display shows the number of gallons (gal) or liters (L) of fuel used since the last reset of this menu item. To reset the fuel used information, press and hold the set/reset button while FUEL USED is displayed. To stop the timer, press the set/reset button briefly while TIMER is displayed. To reset the timer to zero, press and hold the set/reset button while TIMER is displayed. Transmission Temperature Press the trip/fuel button until TRANS TEMP displays. This display shows the temperature of the automatic transmission fluid in either degrees Fahrenheit (°F) or degrees Celsius (°C). Timer Press the trip/fuel button until TIMER displays. This display can be used as a timer. To start the timer, press the set/reset button while TIMER is displayed. The display will show the amount of time that has passed since the timer was last reset, not including time the ignition is off. Time will continue to be counted as long as the ignition is on, even if another display is being shown on the DIC. The timer will record up to 99 hours, 59 minutes and 59 seconds (99:59:59) after which the display will return to zero. Blank Display This display shows no information. 3-55