Went to get in vehicle and found the drivers seat back leaned forward with seat lifted up. Noticed fog on inside drivers window. Started looking and found that under the carpet (which was soaked back to front), mold had started appearing in the back on the carpet. Called GMC Tallahassee, Fl. They took it in, they determined the back slider glass was leaking. They told me there was a TSB on it. They repaired a "seal" at the window but stated it is still leaking and advised me to pick it up and take it to a Glass Business.

To date my trucks carpet is soaked and is starting to smell! There's still a leak, but GMC so far hasn't noted all the reported glass like mine leaking. Left messages for GMC service Manager to call me but no return call as of this posting. This has caused water damage inside, water was on fuse panel, water shorted our Onstar antenna and both motors underneath driver seat. That came out of MY pocket! Over $1,400.00! Window still leaking! If I replace the window that's $1,500.00 not including water damage to the carpet and foam underneath to the inside cab.