Every time I pump gas into my Denali, the pump usually stops before the tank is full. I contacted GMC and was told that the pressure builds in the tank and I need to let it settle, pull the pump out a little and then re-pump. This hasn't worked. The other day, it stopped at $45.00. Knowing the tank wasn't full, I had to pull the pump out, put my card back in and and sure enough, pumped another $20.00 into the tank. The dealer says it's not the car but the way the gas stations have their pumps set up. Has anyone else had this issue or is it just me?