After three visits to the dealer trying to identify the hesitation and ticking in my 2021 GMC Sierra, I broke down and had to be towed to the dealer. Dash errors: "Service ESC", "Service Parking Break", "Steering Assist is Reduced Drive with Care", grinding of engine and generally all the bad stuff. The dealer reports the truck has a bent pushrod and they are fixing it. This dealer is great, truly. They worked me right in, got me a rental car and are dealing with all the towing charges. I could not be more happy with Curry Auto Center in Bloomington, IN. I am, however, worried this is not the end of this issue. The truck presented the problem with only 3,000 miles and did not break down until 11,000 miles. Could the other pushrods bend? What other problems result from driving with a bent pushrod for 7,000 miles?