Apr 27, 2025Electrical systemBody & structureSeats
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.
NHTSA ODI 11657067
Jul 23, 2024Body & structureVisibility & wipers
Rear 3rd brake light and rear window are leaking water into the cab causing visibility issues.
NHTSA ODI 11604093
Jul 9, 2024Body & structure
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
NHTSA ODI 11600521
Apr 8, 2024Body & structure
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
NHTSA ODI 11581719
Mar 12, 2024Body & structure
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.
NHTSA ODI 11576925
Nov 18, 2023Body & structure
Rear window is leaking water inside cab and may cause mold
NHTSA ODI 11555852
Dec 13, 2022Body & structure
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.
NHTSA ODI 11497217
Nov 9, 2022Electrical systemBody & structure
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.
NHTSA ODI 11492905
Apr 22, 2022Body & structure
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.
NHTSA ODI 11461824
Jul 8, 2020Electrical systemBody & structureEngineFire
ON JUNE 2, 2020, MY VEHICLE WAS IN THE DRIVEWAY AND CAUGHT FIRE. I'M NOT SURE HOW IT STARTED. I HEARD A LOUD BOOM AND WENT OUTSIDE AND SAW MY TRUCK FULLY ENGULFED IN FLAMES. I PURCHASED THE VEHICLE ON 11/15/2019. IT HAD ONLY 4015 MILES AT THE TIME. THE VEHICLE WAS STATIONARY. THE LAST TIME IT WAS DRIVEN WAS AT 4:00 PM ON JUNE 2ND AND AT 9:58 PM IT WAS ON FIRE.
NHTSA ODI 11338266
Feb 11, 2020Body & structure
SUNROOF EXPLODED WHILE DRIVING.
NHTSA ODI 11308512
Feb 9, 2020Body & structureBrakesCrash
I WAS DRIVING TO WORK IN SNOWY CONDITIONS AND ON A VERY SLIGHT BEND ON A FLAT PUBLIC HIGHWAY MY TRUCK STARTING SLIDING AND AS I TURNED THE WHEEL AND APPLIED THE BRAKES THE USUAL ACTION OF ANTILOCK BRAKES DID NOT WORK AS INTENDED ALLOWING ME TO STEER CLEAR OF THE OBSTACLE CAUSING ME TO WRECK.2018 GMC SIERRA 1500
NHTSA ODI 11307995
Apr 13, 2019Electrical systemBody & structureSeats
FIRST WEEK OF OWNERSHIP I NOTICED THAT THE REAR WINDOW HAD A WATER LEAK BY REAR DRIVER SEAT. WHILE INSPECTING THE LEAK, I NOTICE THAT THE PAINT ON THE REAR BRAKE SPOILER ABOVE THE REAR WINDOW HAD TWO BLACK MARKS. BODY SHOP TECHNICIAN RUBBED HIS FINGERS ON THE SPOTS AND PAINT WAS RUBBING OFF. I STARTED TO RECEIVE 'SERVICE STEERING COLUMN LOCK' MESSAGES INTERMITTENTLY AND REGULARLY DURING STARTUP. HEATING INDICATOR LIGHTS FOR ALL THE SEATS DO NOT LIGHT UP TO INDICATE THEIR SETTINGS. THIS OCCURS WHILE VEHICLE IS STATIONARY OR ON THE ROAD. THE REAR BACKUP CAMERA SCREEN TURNS BLUE AND DISPLAYS 'SERVICE REAR BACKUP CAMERA' WHILE REVERSING AND IT OCCURS OCCASIONALLY.
NHTSA ODI 11196063
Dec 30, 2018Body & structure
REAR LEFT ROOF IS LEAKING INTO THE INTERIOR OF THE CAB. WATER IS / WAS NOTICED DURING RAIN AND CAR WASH. IN THE ATTACHED PICTURE I HAVE HIGHLIGHTED WERE THE WATER IS COMING INTO THE INSIDE OF THE CAB. WATER CAN ALSO BE SEEN IN THE INSIDE OF THE REAR WINDOW AND ON THE LEATHER OF THE SEATS. THIS HAPPENS WHETHER THE VEHICLE IS PARKED OR DRIVING. IT WAS NOTICED AT 1800 MILES AND ITS LESS THEN A MONTH OLD.
NHTSA ODI 11164092