Mine is the same way, just have to let it fill up slowly and then top off. That is what I do. I can get about 5-6 gallons more when the pump stops the first time.
Numerous warranty issued with GM that they would not take care of or chose to ignore. Run-ins with service writer and just overall displeased with the ability to keep me "the customer" happy after the sale of the truck. Wanted to try something different this time and Ford was it. So here I am...
That is me.. I was on that site as a Lead Moderator and GMC owner for almost 4 years before switching over. My avatar is unique and soon to be on my license plate..
haha