2010 Chevrolet Avalanche Owner's Manual - Page 250

The gage first indicates empty before the vehicle is out of fuel, and the fuel tank should be filled soon. When the fuel tank is low, the FUEL LEVEL LOW message appears in the Driver Information Center (DIC). See DIC Warnings and Messages on page 4‑57 for more information. Here are some situations customers may experience with the fuel gage. None of these indicate a problem with the fuel gage. . Low Fuel Warning Light This light, under the fuel gage, comes on briefly while the engine is being started. At the gas station, the fuel pump shuts off before the gage reads full. It takes a little more or less fuel to fill up than the fuel gage indicated. For example, the gage may have indicated the tank was half full, but it actually took a little more or less than half the tank's capacity to fill the tank. The gage goes back to empty when the ignition is turned off. . This light and a chime comes on when the fuel tank is low on fuel. The Driver Information Center also displays a "FUEL LEVEL LOW" message. See DIC Warnings and Messages on page 4‑57 for more information. When fuel is added this light and message should go off. If it does not, have the vehicle serviced by your dealer/retailer. . 4-42