Brought car to dealer to complain about this problem. He reset the computer and told us it was okay. We usually fill the tank when at 1/4 tank or above, so we assumed the problem was fixed. After about 3 months, we ran below 1/4 tank and the gauge went up. Brought the car to the dealer and they denied the repair, because the car was out of warranty. We told them the car was never fixed properly the first time and they still denied the claim. Infiniti does not stand behind their products - we've had numerous problems with this car and we're not pleased with them.