Low Fuel Telltale
If the fuel level is low, the ECM will send a message to the BCM over the CAN link, which sends a message to the I/P cluster over the Class II link to turn On the Low Fuel telltale. The Low Fuel telltale will illuminate when approximately 7.9 liters (2.1 gallons) (maximum range is 4.9-11.4 liters (1.3-3 gallons)) of usable fuel remains in the tank.