I drove round trip 7 hours to pick up my Grenadier. In the dealer lot the AC was freezing when they were going over all the features. On the way home the AC stops working after about one hour. Not happy. It was a long drive and a logistical nightmare for me to get back to the dealer anytime soon. The dealer said there was a “hvac” update that all of the new arrivals had to have done by the service department. The salesman said it wasn’t done then later said it was done. Has anyone else heard of the “hvac” update? If so what does it involve?