Yesterday I stop by My Cadillac Dealer to find something out Not having to do with my XLR. And my service guy, told that the next time my XLR was in for service They would Re-Program the ECM, As there have been a few complaint about the Fuel gauge not reading right. In on case and XLR driver ran out of fuel. But the fuel gauge said there was half a tank. And another case where the fuel gauge said there was no fuel. But in fact there was 9 gallons.