Old Salty

My 2021 GMC HD also. I actually took it in to have them check it, TWICE. They say no issue. But does seem to take a lot of of pedal push to get it to stop. If i pump the pedal once, it seems to stiffen up and work like it should. That's why i took it in. First time they said they bled the breaks and seems to help for a couple days, then back to the way it was. Second time i took it in, they said no issue.