i was really surprised to find out the gm would hide this. its above the the digital odometer readin on the cluster. its covered up by black plastic from the factory gauge face. has a little picture of a car and points to the side the gas tank is on and tells you how much fuel is left until empty. i just took the clear cover off the cluster took a razorblade and very carefully cut off around 3/4 of the plastic and the length of the odo reading and reassemble.