2000 GMC Envoy Owner's Manual - Page 136

Tow/Haul Mode Light This light should come on when the tow/haul mode has been selected. Gate Ajar Light If this light comes on, your liftgate or liftglass is ajar. Try closing the liftgate or liftglass again. Never drive with the liftgate or liftglass even partially open. For more information, see "Tow/Haul Mode" in the Index. Fuel Gage Check Gages Light The CHECK GAGES light will come on briefly when you are starting the engine. If the light comes on and stays on while you are driving, check your coolant temperature and engine oil pressure gages to see if they are in the warning zones. United States Canada When the ignition is on, the fuel gage tells you about how much fuel you have remaining. 2-74