Jp77

I feel your pain. My Trail Boss has been at the dealer now for 2 weeks because of this issue. The truck has 2400 miles on it and I took delivery of the thing the first week of september. From what I’ve heard is the solid rear windows don’t have the issue of leaking.

Mine is at the dealer waiting for a new back window. My question is wtf are they going to do to correct the problem on these trucks even if they redesign the 22 models rear window? The other thing is every gmc/Chevy truck I see here in Michigan has a rear slider , it’s hard for me to believe everyone is leaking

My 2020 Trail boss is leaking at the same spot as your truck. Truck has 2400 miles on it. Dropped the truck off last week at the dealer I ordered and purchased from. Told me they we’re gonna have to pull the rear window and reseal it. Called me yesterday to tell me it was done. Went to pick it up today and found what looked like they just applied the sealant from the outside to just the corner of the leak with out pulling the window or the rear brake light. Needless to say the truck is still sitting at the dealer

20 LT Trailboss 2400 miles with rear window leak on driver side. Water is weeping from the top track of the slider. Dealer has had the truck for a week and told me they’re pulling the rear window to reseal it and check for cracks. Said if it’s cracked they’ll have to replace the window. After reading all these posts I’m very doubtful this is going to be fixed