My 2021 High Country with about 10,000 miles glided to a halt on a local road about 10 days ago. It was towed to the dealer where it was diagnosed with a bad fuel pump and module. The car would not start after that repair and the dealer and the GM engineers are collaborating on the next steps. Up to now the car has been great - I traded in my Land Cruiser (4th) for the Tahoe. May have been a mistake.