I left the house and parked on a hill parking lot, drivers side lower than the passenger. When I left, I was driving around and noticed the gas gauge, which had been at half full, was now showing full. I thought if I shut off the car, that might reset everything. It didn't. Anything I can do to fix this? Top the tank and see if that won't fix it? Or take it in? It sounds like a stuck sensor.
The fuel gauge should eventually reset on its own. You can expedite this by disconnecting the 12V negative cable for a few minutes. Or you can just fill up the fuel tank now, then the actual tank level will correspond with the current fuel gauge reading. Then reset the trip odometer on the MFD so that you have a convenient way to see how many miles have been driven since the fuel tank was filled. If the fuel gauge doesn't start to drop down after driving 150 miles, then start to be concerned.
