GMC Sierra Complaints (2024)

545 consumer complaints on file.

#11664764June 4, 2025
POWER TRAIN
2024 GMC DENALI HD with approx. 12, 500 miles: The truck is constantly going into limp mode. Driving down the road, first it feels like the wheels lock up with a loud noise. Immediately goes into limp mode and check engine light comes on. Took it to the dealer yesterday 6/3/25 for repairs. I just spoke to my service advisor this morning where I was told it was the Valve Body of the transmission that needed to be replaced. However, they were on backorder and have no ETA on when they will get a replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664394June 2, 2025
ENGINE
I received a recall notice for my 2024 GMC Sierra Denali Ultimate (6.2L engine), related to defective lifters that can cause engine damage. My truck was built in April 2024, and I've been told by some sources that certain 2024s may have the updated lifters, but neither my dealership nor GMC will confirm whether my truck is affected or safe. I’ve asked multiple times for VIN-specific confirmation of the engine components — no one has been able to tell me if my vehicle has the faulty parts or not. I was told to just keep using the oil they recommend or wait for a diagnostic tool GM hasn’t even released yet. That’s not enough. I’m planning to take my family, including my grandchildren, on a long road trip soon, and I don’t feel safe putting them in this truck without answers. For a vehicle that cost over $85,000, I shouldn’t be left guessing whether the engine could fail on the road. I’m filing this complaint because GM is not giving me a straight answer, and I think this is a serious safety concern.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664216June 1, 2025
ENGINE
I learned 2 weeks ago my 6.2L was part of the recall. I took a business trip in the truck with about 19,000 miles last week. I got home Friday noon. Truck was parked from Friday till this afternoon. Went to remote start it, it started, was misfiring and stalled, I could hear what I thought was a rod clanking. I got in the truck, started it with the start button, same thing. Had my 19yr old son start it with me laying on the driveway listening. It was clearly a rod or bearing making noise. I’m fortunate this happened in my driveway and not on my hour drive Friday. Truck will be towed to dealer Monday 6/2, but I suspect this motor has failed with 20,000 miles for the same reason it was recalled.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664059May 31, 2025
POWER TRAIN
Vehicle jolts forward when coming to a complete stop causing vehicle to move forward unintentionally.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663695May 29, 2025
ENGINE
Friday, May23,2025, 5:00 pm Driving on interstate at 65mph, entering work zone as 3 lanes merged into 2. The vehicle slowing down to allow traffic to merge. Dash display said push start button again, no engine rpms, Pushed start button, nothing happened. The vehicle came to a complete stop. pushed button several times, attempted to shift vehicle into park and or neutral, Did not no what gear I was in. Dash display said not conducive to shifting at this time. After several attempts to restart truck, it did start. Put it in drive, accelerated past 65mph. vehicle died immediately. able to change lanes while coasting and got off highway. Never restarted, transmission locked and parking brake locked. Tow operator called, dragged onto flatbed, no wheels turning. Towed to Dealer. Potential for accident was very high, the vehicle had 4 passengers including a child. No warning what was about to happen an no clue what to do. Pre Memorial Day traffic including work traffic in construction zone. Is still under original manufacturer's warranty with a little over 11,000 miles . Dealer confirmed the Tuesday. May 27, 2025 the engine failure and contacted GM regarding the recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663717May 29, 2025
ENGINE
Manufacturer Recall Number N252494003 NHTSA Recall Number25V274 Recall Status Recall Incomplete, remedy not yet available Summary General Motors has decided that a defect which relates to motor vehicle safety of 2024 model year GMC Sierra 1500, equipped with the 6.2L V8 gas engine (RPO L87). The connecting rod and/or crankshaft engine components in these vehicles have manufacturing defects that can lead to engine damage and engine failure. Safety Risk When the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. GM HAS YET TO CORRECT THIS SAFETY ISSUE WITH MY GMC SIERRA. THEY HAVE FAILED TO CORRECT IN A TIMELY MANNER.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663404May 28, 2025
STRUCTURE
The contact owns a 2024 GMC Sierra 1500. The contact stated that while driving 70 MPH, the top grille cover detached from the vehicle. The contact immediately proceeded to pull over and used a zip tie to the secure the grille cover. There was no warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 35,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663517May 28, 2025
VISIBILITY/WIPER
I was going home after work on labor day, when l heard a noise on my roof. I opened the sunscreen window and l heard what sounded like a gunshot and the sunroof exploded raining down glass on my face.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11663121May 27, 2025
POWER TRAIN
New truck with only 5K miles had the check engine light come on. Sluggish/low acceleration and unable to put into reverse. Towing required to service center.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662578May 22, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2024 GMC Sierra 2500. The contact stated that after parking and turning off the vehicle, the vehicle failed to restart. No warning light was illuminated. The vehicle was towed to the dealer for diagnostic testing, but no diagnostic trouble codes were retrieved. The dealer replaced the fuel pump module. No further information was available. The manufacturer was made aware of the failure and advised the contact to file a vehicle safety complaint with the NHTSA Hotline. The failure mileage was approximately 11,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662079May 20, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662015May 20, 2025
ELECTRICAL SYSTEM, POWER TRAIN, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Battery would not hold charge and would need jump start. Transmission would not stay in gear while towing trailer and would only go to 5th or 6th gear and would jerk out of gear and oil temperatures would go to 225 degrees. Erratically shifting and while driving with cruise control stop with out warning
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662017May 20, 2025
POWER TRAIN
Transmission valve body failure 10,672 miles ..
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661778May 19, 2025
STRUCTURE:BODY
My truck is experiencing an issue that is already a recall for similar trucks, but my VIN is not included in the recall. My tailgate opens on its own. This sometimes happens when I am driving down the road. This is a safety risk because if I am hauling something in the back, and the tailgate drops down, there is a chance the load could fall out of the truck and harm another vehicle or person that is behind my truck. I brought the truck to the dealer and they said they could not find any evidence of this issue, even though they stated that it is a known issues with these trucks. There were no waring lamps or messages. The only symptoms are that the battery can die if the truck is not used for a day or more and that the tailgate opens on its own whether the truck is parked or driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661664May 18, 2025
POWER TRAIN
Vehicle transmission locked up and brought me down to 20-30mph out of the blue at [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661558May 16, 2025
ENGINE, POWER TRAIN, FUEL/PROPULSION SYSTEM
On [XXX] this vehicle was in Blue Cruise on [XXX] in Louisiana when it without warning coasted to a stop after the engine quit. Cruise lights remained active, no other lights were illuminated, and the vehicle simply rolled to a stop. La. DOT assisted. The vehicle was towed (complicated that once placed into park, and the engine would not restart, the vehicle cannot easily be placed in neutral to be towed). The vehicle was trailered some ~50 miles and sits at Rainbow NorthShore GMC in Covington, La. This is a series, life threatening situation that all vehicles need be removed from the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661182May 15, 2025
ENGINE
starting in June of 2024 at 6500 miles my truck started exhibiting loud exhaust drones and severe vibrations coming through the dash, floorboard and steering column on excelleration. The truck has been in repair 7 times in the past 11 months and multiple parts have been changed. I learned that there are thousands of General Motors 1500 trucks equipped with the 3.0 LZ0 Duramax diesel engine exhibiting the same symptoms. A General Motors Field Engineer found Broken exhaust bracket studs at the engine block caused by exhaust alignment and engine/transmission mount stress from worn components. These trucks are coming from the factory this way and continues with 2025 model year. My son owns a 2025 GMC AT4X 3.0 LZO and has the exact same symptoms.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661333May 15, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I was traveling on the interstate, going a little over 70 MPH as I was passing a tractor and trailer. There were no other vehicles in front of me. Suddenly the truck jerked like the breaks were being applied and my speed was quickly reduced to around 60 MPH. The heads up display showed a crash alert orange symbol. I pushed the gas to try to get back up to speed but the truck would not accelerate and the speed kept dropping. I pulled over to the berm and came to a stop. There was a message on the message center but it went away before I could read it with everything else happening. I put the truck in park and waited a minute then I pulled back out and was able to get the truck back up to speed and home. I plan to contact my dealer tomorrow. The ruck was involved in an accident that damaged the front in earlier this year so I believe some or all of those sensors have been replaced. This is the first issue we’ve had since purchase. If there would have been a vehicle following behind me, the rapid breaking/deceleration could have caused an accident. Also the inability for me to regain my speed when traveling on an interstate was a danger to myself and others.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661018May 14, 2025
ENGINE
General Motors has decided that a defect which relates to motor vehicle safety exist in my 2024 model year GMC Sierra 1500 vehicle equipped with the 6.2L V8 gas engine (RPO L87). The connecting rod and/or crankshaft engine components in these vehicles have manufacturing defects that can lead to engine damage and engine failure. If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash !!!! After contacting my local GM dealers, three of them, NONE OF THEM CAN OR KNOW HOW TO REPAIR THIS LIFE SAFETY ISSUE with my vehicle. Please direct GM to buy back my 2024 GMC Sierra SLT vehicle. v/r [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660878May 14, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, UNKNOWN OR OTHER
TWICE in the past month +. On [XXX] my wife and I were on our way to a family wedding and I was driving approx 75 MPH on [XXX]. I don't recall if I had cruise control on or not as I rarely use it. There was no vehicle was in front of me for hundreds of yards yet all of a sudden the vehicle started to brake very hard. I accelerated as I did not know what was going on and I had a car in back of me that started to gain. THEN last Friday ([XXX}) with my wife following me in her car on [XXX] through Ellicott City MD I was traveling at approx 25-30 MPH through a very small historic town when all of a sudden the same [XXX] thing happened. DEF no CC on . When we got to our destination I asked my wife if she saw my brakes come on suddenly?. She replied yes and said she saw the truck dip hard. I told her the brakes did it again. She said I should call the dealer. I did not as they are USELESS! THEN the electronics. On Star has a catalog of my complaints. The radio selections I make just disappear from the screen: Apple Car Play disappears from the touch screen and just goes dark. I have to stop the truck..(per on-star) open the door.. get out.. lock it.. wait 2 minutes.. get back in .. restart the truck, and this re-sets the computers(s). RIDICULOUS! I do not have Sirius but the radio goes dark often for about 2-3 seconds., then comes back on. I was told it is my I-Phone is causing this. [XXX]! What does my phone have to do with AM/FM radio?? I was told by GMC there is a patch to update the software. Koons GMC told me there was no such patch nor recall. I paid nearly $80,000 for this piece of [XXX]! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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