2020 Chevrolet 2500 hd electronic and ac problems

[Kyle Prater]

I had electronic problems earlier with my 2020 2500 multiple service parking brake service 4wd then going into limp mode dealership changed a pig tail out left 1 week later doing same thing they then said body control module was bad said was not covered under drive train even though it was causing it to go into limp mode  . Told them ac was not blowing cold either said your new body control module would fix it . Made them check batteries told me they passed . They also did a update for regen . Last time dealership drove  truck around for 2 hours said sorry we can’t figure it out . The ac will only blow cold when truck is running over 2k rpm’s . Taking it into a private shop to have ac system vacuumed and recharged but I’m afraid it’s something else truck .