GMC Sierra Complaints

15,732 consumer complaints on file.

#11586675May 2, 2024
ELECTRICAL SYSTEM, STRUCTURE:BODY
I bought truck brand new one week later the tailgate opened while driving and hit the trailer and destroyed the tailgate. So I bought a brand New tailgate and repaired truck. Few months ago it happened again all my tools flew out into the highway almost caused a major accident and destroyed my saw and tools got thrown all over the road. Last week it opened again and destroyed the new tailgate I bought. The dealer is aware, gmc is aware and no parts to fix it or does anyone want to help me just let me drive a truck that is so unsafe. It's all over the internet this issue people are saying there tailgate opens while driving and gmc made a statement saying they are aware but not helping me. Sold me a truck for alot of money knowing it's a major dangerous defect that can cause major damage and serious injury on the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586677May 2, 2024
ELECTRICAL SYSTEM
In January 2024, I parked my truck in my garage and shortly after I smelled an electrical burning smell in our house. When I opened the garage, it had smoke throughout the garage and a very strong odor of electrical burning smell. I moved my vehicle outside and tried to find the source, but it was too strong to narrow it down, and the garage smelled like burnt electrical for days. I took the truck to a service shop and they could not find anything wrong at the time. Today, May 2024, I was having trouble getting my trailer lights working. Upon further inspection, I discovered the 7-way interface wiring harness on my vehicle had electrically shorted out and melted a hole in the plastic housing and left melted plastic on the truck frame. The tag on the wiring harness states TAG #138359 7-WAY INTERFACE HARNESS W/O 134971. I believe this electrical short/fire should be part of the NHSTA Recall 18E-014. That recall states those are aftermarket harnesses, but the harness on the vehicle in this complaint is original to the vehicle and was installed by the manufacturer. I plan to take the vehicle back to the dealer to have the harness replaced, but I am expecting pushback since the NHSTA recall states this is only aftermarket harnesses.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11586679May 2, 2024
POWER TRAIN
Has happened three times. 1st and 2nd time driving down road towing trailer, rear wheels locked up for 12-15’ while driving 50-55mph. I had thought it was my trailer axel. Happened twice within 6 miles. 3rd time was 1 month later. Rear Wheels locked up driving on interstate at 70-75 mph. I estimate that i traveled 1,800 miles between the 2nd and third incident. Vehicle is at the dealership getting inspected for repairs No warning lamps before, almost every warning light came on after incident If this happened on a wet, ice, snow or dirt road this could have caused a serious accident. It would also be bad in a curve. Dealer took for road test but did not have any luck recreating the issue. They checked the differential oil And it didn't have any heavy metals. They are going to take the differential apart to inspect it to verify. They checked my battery and said it needed to be replaced. Also a wheel speed sensor needed to be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586345May 1, 2024
STRUCTURE:BODY, UNKNOWN OR OTHER, ELECTRICAL SYSTEM
The rear sliding window leaks water inside the cab every time it rains. With water getting into the cab the issue of mold has begun and that could be a serious factor to any children or adults that ride inside the cab of the truck. There is also rust issues that are notable under the rear seats of the vehicle. Water inside the cab can also interact negatively with any electrical components of the vehicle. I tried to get ahold of the dealer and they always say they don't have time to get my truck in. I have read that this has happened to other vehicles that are the same year and model and they just fix it with caulk which does not seem appropriate for a almost new vehicle. The vehicle has not been inspected. There were no warning lamps prior to this issue. A possible symptom was that my back up camera stopped working for a day right after a rain.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586056April 30, 2024
SUSPENSION
The contact owns a 2018 GMC Sierra 1500. The contact stated that while the vehicle was at an independent mechanic for an oil change, the independent mechanic performed a full inspection of the vehicle. The contact was informed that the CV axles were corroded, and the CV axles needed to be replaced. The vehicle was repaired. The contact was advised to report the failure to the dealer. The contact informed the dealer of the failure. The contact stated that the vehicle had been taken back to the dealer several times for repairs, including the transmission replacement, radiator replacement, and a full suspension replacement. The manufacturer was made aware of the failure. The failure mileage was approximately 93,555.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586112April 30, 2024
POWER TRAIN
My truck only has 40,000 miles on it and has the 8 speed 8L90 transmission. The truck bucks hard and has majorly delayed acceleration, especially on the initial startup of the vehicle. At this point the torque converter is going bad as well as the transmission fluid temperature sensor as per my mechanic when hooked up to the computer. It is now causing a fluttering of the RPMs, especially when the vehicle heats up after running for several minutes. It is severely impacting my fuel economy as well as my general safety when operation my truck. This is a known problem with this type of transmission but so far there has been no recall issued, only a class action lawsuit that I am having a hard time joining. It is going to cost me over $8000 for a new transmission and I don't really know where to turn at this point or what to do! Please make GM issue a recall for this known transmission problem that they put in millions of vehicles, all having similar problems as my own! Thank you!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585843April 29, 2024
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
The contact owns a 2017 GMC Sierra. The contact stated that while his wife was driving at an undisclosed speed with the defroster activated, a smoke odor was detected inside the vehicle. The contact's wife checked the rearview mirror and saw flames coming from the rear windshield. The contact's wife pulled over and heard a loud explosion from the rear windshield shattering before turning off the vehicle. The flames from the rear windshield were extinguished on their own after the vehicle was turned off. There were no injuries sustained. The vehicle was restarted, and the contact's wife deactivated the defroster before driving to work. The vehicle was taken to the dealer, where it was determined that the rear windshield needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 97,000.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11585862April 29, 2024
VISIBILITY, VISIBILITY:GLASS, SIDE/REAR
See attached document for complaint
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585881April 29, 2024
POWER TRAIN
I was driving approximately 60mph pulling a trailer when the back tires locked up for approximately 2 seconds. This happened 3 times within 30 minutes. I've taken it to the GM repair shop. They have seen this happen to 3 or 4 vehicles. Due to not being able to replicate the fault it has been difficult to diagnose. They are going to replace the transmission valve body hoping that will take care of the issue. This is extremely dangerous to everyone on the road when this happens. There are many forums out there that I've read and have been close to deadly accidents involving cars, trucks, RV's, and semis as they've ran off the roads. This seems to be something worth looking into and ensuring GM puts out a recall for. In my case, I am going through an extended warrant for my 2020 3500 with 112,000 miles. The warranty company wants the GM technician to replicate the fault... which isn't possible without hooking up a trailer... also very dangerous which I refuse to do until the issue if resolved. In any case, I will have to hook up a trailer once the part is replaced... praying that it won't happen again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585882April 29, 2024
ELECTRICAL SYSTEM, ENGINE, SERVICE BRAKES
I was driving my vehicle, with my 9-year-old son in the back, when it seemed to completely lose power and shut down (while I was driving!). The power steering, brakes, and gas all gave out. I was able to steer myself toward the side of the road where I waited for a tow. The vehicle would not start, nor would it shift into neutral, which led to towing challenges. This is a 2024 vehicle that I've had for about eight months, and it completely gave out while I was driving with a child in the back, which is a significant safety concern. Nobody at the dealership or GMC is able to offer anything with respect to information on how or why this happened and what you are doing to resolve the issue. From what I see online, this is a known issue that GMC is likely to be sued for in the future.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585689April 28, 2024
ELECTRICAL SYSTEM
Tail gate failing from water intrusion. Wont stay up while driving. Already a recall for it in Canada but nothing in the USA where i see others have the same problem
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585690April 28, 2024
UNKNOWN OR OTHER
This is not a safety item, but one that causes undue financial hardship for the owner. It is widely know that the dash on certain 2007-2014 GM vehicles (generally trucks and SUV's) is susceptible to cracking. This causes devaluation of the vehicle if not fixed and is reported to cost between $2,000-2,500 to repair. It is my opinion that the cause of this is the use of substandard parts by GM and they should issue a recall for the repair of the dash.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585386April 26, 2024
TIRES
The contact owns a 2022 GMC Sierra Denali 3500 equipped with Goodyear Tires, Tire Line: Wrangler, Tire Size: LT275/65/R20. The contact stated that while her husband was driving 60 MPH and hauling a camper, the passenger’s side rear tire experienced a blowout. The driver was able to change the tire. The tire struck the camper and caused damages. The vehicle was taken to a tire center, where it was determined that the tire was defective. The tire was replaced. The driver sustained injuries to his back, and medical attention was provided. There was no Police report filed. The manufacturer was contacted. The failure mileage was approximately 31,000. The approximate vehicle and tire failure mileage was 31,000.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11585387April 26, 2024
UNKNOWN OR OTHER
The bed tailgate will come down on its own. There is no warning or message to indicate the tailgate is down. This has happened at least 6 times in the past 6 months. The dealer is aware and some models have had a recall but I have not gotten one yet. The danger is something coming out of the bed while driving down the road, which happened to me and lost a crate with trailer ball hitch and straps. I don't know if it caused an issue because i don't know when or where it fell out. Googling this shows it is happening a lot. Very dangerous and some sort of correction or warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585235April 25, 2024
ENGINE
The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, he heard a knock sound coming from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, and during an inspection, the engine seized, after which the dealer diagnosed a failure with the rod bearings. The vehicle was repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 31,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585237April 25, 2024
POWER TRAIN
My 2018 gmc 1500 transmission making noise grinding. It only has 75799 Miles on it. I just was told by Laura gmc that my transmission needs replacing. I think gm should cover that. Dealer charging 7800.00 to replace it. That's not right the truck doesn't have that many miles on it. Please help
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585259April 25, 2024
ENGINE, POWER TRAIN
The contact owns a 2023 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the vehicle started to shake abnormally with the check engine warning light illuminated. The contact stated that after arriving at a parking structure, the transmission warning light illuminated. The vehicle was towed to the local dealer where it was diagnosed with transmission failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 15,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11585094April 24, 2024
STEERING
When starting the truck yesterday, not all the button lights came on and the power steering was no longer operational. I was fortunate the power steering issue did not materialize while the vehicle was in operation on the road. No warning prior to the failure was given by the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584890April 24, 2024
LATCHES/LOCKS/LINKAGES
The contact owns a 2024 GMC Sierra 2500. The contact stated while driving approximately 45–50 MPH in the rain, the tail gate opened unintendedly. There were no warning lights illuminated. The contact stated that cargo in the bed of the truck fell out onto the roadway. The contact stated that the failure was like NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages) however, the VIN was not included. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 2,900.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584731April 23, 2024
WHEELS, STEERING
While making a righthand turn at approximately 10-15 mph, my passenger side front wheel failed at the ball joint and collapsed. Reviewing the carfax, this is the 2nd time this has happened to this vehicle (the first was on the driver side wheel). I noticed Safety Recall Report 21V-718 seems to describe the issue I'm facing with the "front upper control arm experiencing accelerated wear... leading to ball joint separation", but according to GM, since no unsatisfied recalls are shown on my VIN report, there's nothing they're willing to do. I believe the failed part number is 573. This failure left my truck sitting in the middle of the road obviously with no way to move it other than a tow truck dragging it onto his bed.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0

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