2019 GMC Sierra 1500 body problems

Filed Dec 24, 2025 · Body · SC

The lights on the dashboard is indicating that the hood is unlocked and the security system is being tampered with. Hood is closed and it disengage auto start and the alarm goes off every 10 minutes.

Filed Apr 27, 2025 · Body, Electrical · WI

Rear sliding glass window is leaking water around the exterior frame. This is addressed in TSB 18-NA-383 but not covered under any warranty. My rear seats and carpet are becoming wet. I am concerned about the possibility of mold and an electrical short/fire resulting from water intrusion. There are many reports and discussions on the internet regarding this issue. Full window replacement estimated at $1300. Patchwork repair with caulk is estimated at $600 with no guarantees of success. I would expect GMC to cover the replacement of the rear glass in kind and remedy any other damage to my vehicle due to water intrusion into the cabin area.

Filed Jul 23, 2024 · Body, Visibility · MO

Rear 3rd brake light and rear window are leaking water into the cab causing visibility issues.

Filed Jul 9, 2024 · Body · AR

smoke chrome trim package on the front of the vehicle is peeling and is a manufacturer defect, GM is offering no assistance in remedying this problem and is a known problem by gm with vehicles going back as far as 2017

Filed Apr 8, 2024 · Body · GA

My tailgate has been unlatching while driving and I do not understand why. It came down while I had my trailer attached and it damaged the tailgate. No one is touching the button that unlatches the tailgate and it is closed when I start driving, but sometime before I arrive to the next destination it's miraculously down. This is very dangerous and I would like help getting it taken care of

Filed Mar 12, 2024 · Body · 25,000 miles · NY

The contact owns a 2019 GMC Sierra 1500. The contact stated that upon inspection, it was discovered that the coating on the exterior frame of the vehicle had peeled off and the frame started rusting. The local dealer was notified of the failure, but no assistance was offered. The contact was informed of a TSB for the failure, but the VIN was not included in the Extended Warranty Coverage. The failure mileage was 25,000.

Filed Nov 18, 2023 · Body · CA

Rear window is leaking water inside cab and may cause mold

Filed Dec 13, 2022 · Body · NY

The rear window on the 2019 GMC Sierra SLT leaks water into the cab. This presents a serious concern to the owner of the vehicle because unless you are specifically looking for the leak you may not even know there is one. Upon noticing the leak, one can witness a steady drip of water behind the rear seat, drivers side. My personal concern is that what happens after the water has leaked and had gone unnoticed for an extended period of time, does mold start to grow? Does my truck have mold growing in it? With two young children in the vehicle I am concerned about their health and safety. My frustration with this issue is that GM refuses to acknowledge that there is an issue. My dealer has brought this issue up with GM but the claim has been denied. I have no idea how long the leak has been happening but it’s a manufacturing problem that exists and it certainly shouldn't be the owners responsibility to fix the problem. More importantly, it shouldn't be my young childrens health that is affected by the manufacturers incompetency and ignorance.

Filed Nov 9, 2022 · Body, Electrical · IA

My 2019 2500hd (49,00 miles) truck had water leaking in through the roof. The dealership found that the leak was caused by a bad factory tack weld on the passenger side roof seam. Due to this bad tack welkd, it caused water to leak down the a-piller, down into my electrical fuse box and wiring.

Filed Apr 22, 2022 · Body · 22,000 miles · MO

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 60 MPH, the hard tri-fold bed cover detached and flew off of the vehicle. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 22,000.