GMC Sierra Complaints

15,732 consumer complaints on file.

#11687856September 17, 2025
STEERING
The contact owns a 2020 GMC Sierra 1500. The contact stated that upon start the vehicle, the vehicle lost power steering functionality. The messages “Service Power Steering”, “Power Steering Disabled” were displayed, and ESC warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed, and the contact was informed that further diagnostic tests were needed to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 115,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687861September 17, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2022 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 contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact was able to pull over to the side of the road. The contact turned off the vehicle, and the vehicle failed to restart. The vehicle was towed to the dealer; however, no cause for the failure was found. The vehicle was then towed to an independent mechanic who diagnosed that the engine and computer chips had failed. The vehicle was repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was 56,313.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687874September 17, 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 unavailable. 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687891September 17, 2025
ENGINE, SERVICE BRAKES, HYDRAULIC, TRACTION CONTROL SYSTEM
The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated and the vehicle started running abnormally rough, promptly the contact to discontinue driving the vehicle. The message “Service Traction Control” was displayed, and the ABS warning light was illuminated. The vehicle was taken to the dealer, but it had not yet been diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 20,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687893September 17, 2025
SERVICE BRAKES
The 2021 GMC Sierra 1500 has an Electronic Parking Brake (EPB) that bolts on to the rear calipers. The EPB does not release, in order for service, you have to long press the parking brake, then the truck goes into service mode & will release the brakes for service, some newer models may not have this feature. The vehicle has 36,000 miles on it & the inside rear brake rotors are worn down from the EPB dragging & not releasing as supposed to, causing excessive premature wear & that could cause a safety hazard fleet wide. The EPB should not be in use while the vehicle is moving, but it is coded to not release, meaning whenever you press the brake it never moves back out away from the rotor, causing drag & or even can cause warping of the rotor. I do not understand the thought process in regards to not letting the EPB release, it acts like the screw type caliper that would have the same issues of every time it moves out it will not go in until taken apart & screwed in, again meaning the brake pad is constantly dragging on the rotor which could in turn also affect the miles per gallon. I see the thought process to use EPB as useful but not a good execution by the manufacturer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687926September 17, 2025
STRUCTURE:BODY
The vehicle’s frame has severely rusted to the point of structural compromise. My certified mechanic determined on December 10, 2024, that the frame could not pass the state safety inspection due to advanced corrosion. Welding is now required to restore structural integrity. The truck has remained inoperable and sidelined since that date. The frame is available for inspection upon request, and I have photos, repair invoices, and a mechanic’s written evaluation. This same frame was previously reworked by GMC twice: May 7, 2018 – Frame treated for premature rust. November 4, 2019 – Frame recoated after prior treatment failed due to improper descaling. Despite these reworks under GMC direction, the issue has progressed to a dangerous level. The structural integrity of the frame is compromised. A severely rusted frame puts occupants and others on the road at risk in the event of a collision, towing, or even regular driving. A weakened frame could lead to loss of vehicle control, failure to protect occupants in a crash, or catastrophic breakage of suspension or driveline components while in motion. Yes. The problem has been confirmed by an independent certified mechanic, who inspected the frame and advised that the rust is beyond surface level and requires welding to repair. They refused to weld during winter due to safety concerns and advised that the truck could not be driven or pass inspection in its current state. The vehicle was previously serviced under GMC’s direction in 2018 and 2019 by a GMC dealer (Weird GMC) to address early frame corrosion. However, the current failure has not yet been inspected by GMC directly since becoming undriveable in late 2024. I have reached out to GMC Customer Assistance and am awaiting a response. There were no dashboard warning lights or alerts for this issue. The only indications were visible signs of rust, which rapidly worsened after the 2019 rework. My mechanic noted signs of significant corrosion during routine servicing
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687527September 16, 2025
POWER TRAIN
I have contacted local GMC repair facility (Frank Brown in Lubbock Tx.) about the safety recall on my 6.2 liter engine to attempt to schedule an inspection of my engine and cannot get them to inspect the engine which the recall notice said they would do. They continue to stall and say the inspection isn't approved by GM. I've tried 3 different times to address this isuue without satisfactory results. I recieved the GM safety recall N252494000 notice for my vehicle in May 2025
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687558September 16, 2025
UNKNOWN OR OTHER
I was sitting outside , and then all of a sudden my tailgate on my truck opened upped. And I heard there’s a recall on the latch but apparently it’s not on my truck when I looked it up on Google. It does say some 1500s have the problem. I am very worried that it’s gonna open up in a parking lot on a car or a concrete bumper. Can you please look into this? My truck is going in for service next month and I would like to get it fixed with no charge of course because of the recall. Please call me if you have any questions. [XXX] . Thank you, [XXX] Email— [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
#11687570September 16, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2021 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 contact then received a notice that parts for the recall were available. The vehicle was taken to the dealer, and the contact was informed that the recall remedy was for the dealer to use a higher viscosity oil. The contact expressed concerns that the remedy was not a sufficient repair and that the engine was still vulnerable to failure. The vehicle was repaired under the recall. The manufacturer was not made aware of the failure. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687607September 16, 2025
ENGINE
Our GMC engine with VIN# above needs to be recalled due to the failed Active Fuel Management (AFM) lifter which resulted in misfire’s & engine failure. GMC's defective lifters create a safety concern due to potential engine stalling and power loss while driving, which can lead to dangerous traffic accidents. While GM has implemented extended component coverage for some issues and issued a recall for a related problem with L87 V8 engines, they have not with our GMC Sierra with the VIN# listed above, which has the same safety concern. Our GMC is currently at the dealership and we are determining next steps. Thankfully, my husband pulled over on the side of the road and turned the vehicle off before complete power loss. There was not much notification with the engine light prior to the incident. This could have ended very badly with my husband being injured or even worse my three children also being injured.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687675September 16, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM, STEERING
The vehicle has suffered repeated systemic electrical failures all while being under 8,000 miles. What component/system failed? Power distribution/fuse block, starter, fuel pump control module, horn circuit, body control module, instrument cluster, and charging system. Error codes documented include P0627 (Fuel Pump Control Circuit), U0100 (Lost Comm ECM/PCM), B1325 (Control Module Power Low), U0140 (Lost Comm BCM), and B1000 (ECM fault). All repairs are documented by the dealer, and the truck remains available for inspection. How was safety at risk? The truck lost propulsion at speed, emitted smoke from the engine bay, and became disabled in traffic, placing my family, including my toddler, in immediate danger of collision and fire. Electrical defects also disabled horn and instrument cluster, removing critical warning and signaling functions. These electrical issues have been ongoing for months and GM refuses to replace and can't seem to fix it. Has it been confirmed? Yes. Each failure was diagnosed and confirmed by an authorized GM dealer. Components replaced include fuse block, starter, fuel system computer, horn assembly, and cluster. Despite repairs, issues recur. Inspected by others? GM corporate case managers are aware and have acknowledged defects, though they have refused to issue written determinations. Insurance has not yet been involved, but records are available. The dealer has attempted to repaid more than 4 times with no success. Warning lamps/messages? Yes. Prior to and during failures, vehicle displayed repeated “Service Electrical System,” “Low Voltage,” and communication fault codes. Cluster intermittently blacked out. Smoke in engine bay indicated immediate fire hazard. Cumulative out-of-service days exceeding 20. The failures pose unacceptable risk of fire, sudden propulsion loss, and loss of critical safety functions. I have ALL calls with GM recorded and transcribed as I am in SC (single party recording state) and can provide those.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11687743September 16, 2025
ENGINE
I received a letter from GMC almost 4 months ago telling me that my 2024 GMC Sierra 1500 was recalled due to an engine safety issue. The letter stated that there was no remedy yet and that a subsequent letter would be sent with instructions on how to have repairs done. I never received a second letter. Also, my GMC app stated that the vin had an incomplete recall. Today the app states that there are no incomplete or completed recalls. I called my dealer and they said they know nothing about the recall and I should just wait. This is unacceptable and I need some type of resolution.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687380September 15, 2025
ENGINE
Engine lifters bent a pushrod and scratched my camshaft in my engine causing me to be stranded with minor children. 3rd time since I bought this in 2021 that I have had engine faults in this truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687412September 15, 2025
UNKNOWN OR OTHER, STRUCTURE:BODY
Front wheel well liners keep falling out of place like they are melting. happens when towing and engine gets hotter than normal. Trailer is well below limit for vehicle. Liners fall onto the tire while in motion. This is the 4th time this issue has happened to my vehicle. Dealer replaces them and says it happens all the time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687414September 15, 2025
ENGINE
The catalytic converter failed at 93,000 miles, and 64 months. GM says it is out of warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687166September 14, 2025
ENGINE
On 9-12-25 I was pulling a utility trailer when I went to back it in the driveway my 2013 gmc 1500 5.3 stalled . I restarted it only to have a lifter claddering !!!! I checked the oil it was good ! Oil pressure was good not over heating . It is just the lifter!!!!!! After doing some investigating I found that this is a common problem with GM's 5.3 with the AFM system!!! Companies should be held accountable for fraudulent designs!!! This is Not the first time for GM screwing consumers!!! GM had a similar situation back in the 70s and 80s Cadillac!!!! I bought this truck from a GM Dealer with 67000 miles only drove it in 1 winter it now has 149900 miles!!!! 5 years !!! Change oil and filter every 3000-4000 miles ,use Mobile 5w- 30w !!!! I feel a recall should be made to hold GM Accountable for what they new was a problem but produced and Screwed consumers to make SALES !!!!!!!!!!!!! Ask any quality Repair facility that works on GM'S or Even Auto Parts personal. When it stalled it left me in the middle of the Road with traffic!!! Even if it did start right back up !! Clacking!! The cost is unbearable!!!!!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687026September 13, 2025
ENGINE, FUEL/PROPULSION SYSTEM
To All Concerned, I scheduled my vehicle for routine maintenance, but more importantly, I scheduled my check engine light indicator logo to be activated. Following the maintenance and testing of my engine, the dealership informed me that my vehicle passed. For that matter, they put me right back on the road for the check engine light to come on the following morning, and it's still on and off as it pleases. During these very dangerous and extreme manmade and natural disasters GMC seems to think I will have peace of mind because they added an additional 5000 miles to the warranty. What good is that gonna do when for: 1. We arent safe… every scenario you can imagine. 2. Can't travel anywhere in confidence in my vehicle, because they hope I don't breakdown. 3. They gamble with my and other safe driver lives trying to save money. Our vehicles are two-ton vessels capable of creating all kinds of mess. 4. I bet if I don't pay GMC coming for their property so expect the same in return. 5. You can't make this right because my vehicle just tg the dealership two days ago. Please get to the bottom of this a save me the time, aggregation, and hassle of someone trying to convince me I'm fine… well Im not. Thank you [XXX] [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
#11686984September 12, 2025
SERVICE BRAKES
No wreck
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686825September 12, 2025
ENGINE
Same issue as the 2021-2024 model. I was driving home from work , it lost all power mid turn , traction control , ABS & engine light are on. It’s now ticking and knocking Here’s a list from the shop on what’s wrong with it. Estimated total to fix it is 12k [Other]: camshaft, all lifters, all lifter guides, cam retainer plate, cam sprocket bolt/valve, 4 pushrods, 3 rockers arms, balancer bolt, head gaskets, head bolts, valve cover gaskets, exhaust manifold gaskets, exhaust seals, exhaust manifold bolts x 10, intake gaskets, high pressure fuel lines, water pump gaskets, oil pump passage seals and suction seal, a/c belt, drive belt, a/c condenser line seals, 3 bond silicone, coolant, earl and filter Speak with your service advisor for more information on this recommended service.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686873September 12, 2025
POWER TRAIN
The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the transmission experienced rough gear shifts. Additionally, the vehicle shuddered while driving. The vehicle was taken to an independent mechanic, who was unable to diagnose the vehicle due to a lack of diagnostic equipment. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 120,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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