Showing 64,800 complaints for GMC
Incident date: Dec 31, 1969
I am getting warning signs on the dashboard saying that my brake booster performance has failed and I need to service the brake booster , the brakes are very hard to press, I need longer stopping distances,and traction control and stability control towing harness my speed has been limited to 43 mph and it's saying that the mass air flow system is has low circuit
Incident date: Dec 31, 1969
I am getting warning signs on the dashboard saying that my brake booster performance has failed and I need to service the brake booster , the brakes are very hard to press, I need longer stopping distances,and traction control and stability control towing harness my speed has been limited to 43 mph and it's saying that the mass air flow system is has low circuit
Incident date: Dec 31, 1969
I am getting warning signs on the dashboard saying that my brake booster performance has failed and I need to service the brake booster , the brakes are very hard to press, I need longer stopping distances,and traction control and stability control towing harness my speed has been limited to 43 mph and it's saying that the mass air flow system is has low circuit
Incident date: Apr 12, 2026
I have the GM 6.2 L engine in my 2022 Denali and had the recall Pico test performed August 20th 2025 and the truck passed, they changed the oil and cap and I was good to go supposedly. 5,000 miles later I had the oil changed again and everything looked fine, I drove the truck another approximately 1500 miles and the engine suddenly seized with no indications and no warning. That occurred on Apri
... l 12th 2026. It is now May 3rd 2026 and I am still waiting for an engine.Read more
Incident date: May 2, 2026
Digital Dash cluster lost all communication and only has backlight, no speed, fuel gauges, anything what so ever. Can become extremely dangerous if driving down the road without the knowing of speed and other levels such as oil pressure and fuel.
Incident date: Apr 17, 2026
Engine suffered catastrophic failure without warning while traveling highway speeds after being cleared during recall check and suggested oil viscosity change. Most recent dealer performed service on 4/3/26 showed no mechanical issues and engine failed 2 weeks later on 4/17/26.
Incident date: May 1, 2025
I have a 2018 GMC Acadia SLT with the thermometer and temperature sensor that throws the steering assist error message, engine fan turns on and AC shuts off.
Incident date: Apr 26, 2026
Engine coolant control valve needed to be replaced. Special coverage (N252508341) was issued out by GM to fix this problem on 2021 GMC Sierra 1500 vehicles.
Incident date: May 2, 2026
Power steering pump failed when decelerating after 9500 miles. When power steering pump fails, power assisted braking also fails. Upon deceleration, I could not turn the steering wheel at all or stop the vehicle without extreme pressure on the brake pedal. I narrowly avoided impact with a concrete barricade at the entrance to a parking lot. GM issued a technical bulletin (DCS7112) on January 16, 2
... 025 identifying the problem and failure and directing dealerships to replace the pump on inventory vehicles. No mention was made to repair or notify owners of the potential problem.Read more
Incident date: May 2, 2026
Power steering pump failed when decelerating after 9500 miles. When power steering pump fails, power assisted braking also fails. Upon deceleration, I could not turn the steering wheel at all or stop the vehicle without extreme pressure on the brake pedal. I narrowly avoided impact with a concrete barricade at the entrance to a parking lot. GM issued a technical bulletin (DCS7112) on January 16, 2
... 025 identifying the problem and failure and directing dealerships to replace the pump on inventory vehicles. No mention was made to repair or notify owners of the potential problem.Read more
Incident date: May 1, 2026
The camera system has failed. The screen is black and there is an exclamation point and a camera on the screen.
Incident date: May 1, 2026
The camera system has failed. The screen is black and there is an exclamation point and a camera on the screen.
Incident date: Apr 26, 2026
Transmission valve body failed while driving on highway.
Incident date: Apr 30, 2026
Engine ceased while driving and shutdown. Towed to dealership. Dealership ran diagnostic test and code P0016 came up. Its 6.2 engine has recall on other years with similar issues
Incident date: Apr 15, 2026
The contact owns a 2019 GMC Acadia. The contact stated that the vehicle failed to shift into park and failed to shut off. There was a shift to a park error message displayed. The vehicle was taken to the local dealer, where it was diagnosed with a contact issue in the transmission box. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was approximately 91,355.
Incident date: Mar 6, 2026
The torque converter has been going since before I bought this vehicle. When the RPMs are between one and two, the entire vehicle starts shaking and there is no acceleration. This is a huge safety concern, especially with traffic.
Incident date: Mar 30, 2026
Engine sudden loss of power. Wheels locked up and I skidded off the road.
Incident date: Mar 23, 2026
Without any warning, the V8 L87 6.2 liter engine suddenly seized up, began shaking with significant reduced power. I was fortunate that I could drive slowly to safety and was not on the expressway. In my research, I understand this is related to a design/manufacturing issue with the connecting rods and crankshafts in this type of engine. As I investigated the issue, I found that 600,000 vehicl
... es were recalled with the recall either completely replacing the engine or upgrading the oil type from standard to a thicker, higher-viscosity 0W-40 full synthetic to provide better protection under high stress, along with a new oil cap and filter. In our case, we were directed to change the oil and even with that change, we experienced this dangerous engine failure which cost us $12K ! For that cost of repair, we elected to have the engine replaced for about $1K more to get a 100K mile warranty on the engine. However, our additional concern with the replacement engine is they gave us a remanufactured version of the L87 and we have not found confirmation that they have adequately addressed the design/manufacturing flaws so may be vulnerable to the same seizing issue. We appreciate your attention to this widespread GM issue.Read more
Incident date: Mar 27, 2026
Front chrome hood deflector detached while driving down the interstate. Had a recall on the deflector, recall was performed and the chrome deflector still detached. Tried to get GM to repair and they declined my recall claim. GM stated my 3 year bumper to bumper warranty had expired and they did not have to fix it. This is an extremely hazardous condition and should be covered.
Incident date: Apr 30, 2026
driving normally → brief stumble/sputter/deceleration → engine died/no power → check-engine light → vehicle coasts with no throttle response → would not restart, then restarted briefly with rough idle and immediately died. Reproduced. Towed. Dealer has not yet seen the vehicle. Inspection. No. Notification. Check engine light illuminated, truck automatically went into neutral.
... Safety. We were driving in traffic when problems occurred.Read more
Incident date: Apr 29, 2026
October 24, 2025 I had taken in my vehicle for recall 25V274 Loss of motor power. Mine was deemed unaffected and given the oil change they were doing as part of that. Today it died while I was pulling a trailer with a RZR on it. I had drove about 90 miles with a stop midway when I did have the engine turned off. Then it just quit. My vehicle only has 13k miles on it. Not sure if police report was
... filed but they were called and there directing traffic because it stopped in a busy intersection. I had to be towed, and pay a separate fee to have the trailer towed. At 1000 miles on the truck it had to be taken in for an infotainment screen replacement.Read more
Incident date: Apr 30, 2026
When turning on the car, a message pops up on the dash and will not go away. Dashboard says “ service safety restraint system”
Incident date: Apr 30, 2026
When turning on the car, a message pops up on the dash and will not go away. Dashboard says “ service safety restraint system”
Incident date: Apr 14, 2026
The contact owns a 2019 Yukon Denali. The contact stated that while making a right turn the vehicle stalled. The vehicle was not able to restart. The vehicle was towed to an independent mechanic where it was diagnosed that the lifter went out and caused shaving to go into the oil and then the engine seized up and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was
... not notified of the failure. The failure mileage was 123,000.Read more
Incident date: Apr 29, 2026
The contact owns a 2018 Gmc Sierra 3500. The contact stated while operating the vehicle at an undisclosed speed the vehicle suddenly shutoff, the vehicle was coasted to side of the road. The contact referenced NHTSA Campaign Number: 21V739000 (FUEL SYSTEM, GASOLINE) however, the VIN was not included in the recall repair. The vehicle was towed to a dealer where it was diagnosed to be the fuel contr
... ol module. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 177,000.Read more
Incident date: Apr 28, 2026
My 2023 GMC Yukon Denali is currently at the dealership due to a manufacturer recall involving the engine. The engine issue occurred while I was driving with my children in the vehicle, which required me to pull over and have the vehicle towed to the dealership After inspection, I was told the vehicle requires a full engine replacement. The dealership has stated there is no estimated time of arriv
... al for the replacement engine due to backorder, and that other customers have been waiting for extended periods. I am currently without my vehicle and have been provided a temporary replacement that is not comparable. The extended delay and lack of timeline are causing significant loss of use.Read more
Incident date: Feb 1, 2026
Transmission went out very early. Had to get it replaced whenever I reverse. I have to really smash on the break in order for it to stop if it does stop so somethings wrong with the breaking whenever I hit a bump the left side suspension feels like I’m a lose control and sometimes my radio works and sometimes it doesn’t I’ve been trying to work with dealers I have extended warranty on it. Th
... ey’re saying it’s not covered something about the brake pump is covered, but the belts are not. The transmission was put in only because it left me stranded. Otherwise I would’ve been stuck paying for that. The dealership actually helped me with that. My GPS turns on and off sometime. I’m not sure if it’s electricalRead more
Incident date: Feb 1, 2026
Transmission went out very early. Had to get it replaced whenever I reverse. I have to really smash on the break in order for it to stop if it does stop so somethings wrong with the breaking whenever I hit a bump the left side suspension feels like I’m a lose control and sometimes my radio works and sometimes it doesn’t I’ve been trying to work with dealers I have extended warranty on it. Th
... ey’re saying it’s not covered something about the brake pump is covered, but the belts are not. The transmission was put in only because it left me stranded. Otherwise I would’ve been stuck paying for that. The dealership actually helped me with that. My GPS turns on and off sometime. I’m not sure if it’s electricalRead more
Incident date: Feb 1, 2026
Transmission went out very early. Had to get it replaced whenever I reverse. I have to really smash on the break in order for it to stop if it does stop so somethings wrong with the breaking whenever I hit a bump the left side suspension feels like I’m a lose control and sometimes my radio works and sometimes it doesn’t I’ve been trying to work with dealers I have extended warranty on it. Th
... ey’re saying it’s not covered something about the brake pump is covered, but the belts are not. The transmission was put in only because it left me stranded. Otherwise I would’ve been stuck paying for that. The dealership actually helped me with that. My GPS turns on and off sometime. I’m not sure if it’s electricalRead more
Incident date: Apr 14, 2026
The contact owns a 2020 GMC Acadia. The contact stated that while driving the vehicle, it stalled after initially adding fuel. Even though the reading indicated there was 1/8 of a tank of fuel. The fuel gauge failed to move. The thermostat was stuck open. The electric steering was not working properly. The engine light was illuminated. The traction control was turned off. The contact stated that t
... he failure was related to NHTSA Campaign Number: 20V639000 (Fuel System, Gasoline). The contact stated that he was a master mechanic. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The contact called two other local dealers, Tadd Jenkins Chevy 409 Farnsworth Way, Rigby, ID 83442, and Smith Chevrolet. Address: 3477 Pioneer Dr Suite 200, Idaho Falls, ID 83402. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 61,699.Read more
Incident date: Apr 14, 2026
The contact owns a 2020 GMC Acadia. The contact stated that while driving the vehicle, it stalled after initially adding fuel. Even though the reading indicated there was 1/8 of a tank of fuel. The fuel gauge failed to move. The thermostat was stuck open. The electric steering was not working properly. The engine light was illuminated. The traction control was turned off. The contact stated that t
... he failure was related to NHTSA Campaign Number: 20V639000 (Fuel System, Gasoline). The contact stated that he was a master mechanic. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The contact called two other local dealers, Tadd Jenkins Chevy 409 Farnsworth Way, Rigby, ID 83442, and Smith Chevrolet. Address: 3477 Pioneer Dr Suite 200, Idaho Falls, ID 83402. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 61,699.Read more
Incident date: Apr 14, 2026
The contact owns a 2020 GMC Acadia. The contact stated that while driving the vehicle, it stalled after initially adding fuel. Even though the reading indicated there was 1/8 of a tank of fuel. The fuel gauge failed to move. The thermostat was stuck open. The electric steering was not working properly. The engine light was illuminated. The traction control was turned off. The contact stated that t
... he failure was related to NHTSA Campaign Number: 20V639000 (Fuel System, Gasoline). The contact stated that he was a master mechanic. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The contact called two other local dealers, Tadd Jenkins Chevy 409 Farnsworth Way, Rigby, ID 83442, and Smith Chevrolet. Address: 3477 Pioneer Dr Suite 200, Idaho Falls, ID 83402. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 61,699.Read more
Incident date: Apr 30, 2026
I’m scared to drive my vehicle because of the 6.2L V8 ongoing engine failures! I believe it to be unsafe for travel never knowing when the engine will fail. Now with over 1 Million failures of this engine!
Incident date: Apr 30, 2026
I’m scared to drive my vehicle because of the 6.2L V8 ongoing engine failures! I believe it to be unsafe for travel never knowing when the engine will fail. Now with over 1 Million failures of this engine!
Incident date: Apr 30, 2025
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving at approximately 65 MPH, the vehicle stalled, and there was smoke coming from the engine compartment. Additionally, the contact stated that the vehicle was experiencing excessive oil consumption. The messages "Put Vehicle in Neutral" and "Check Oil" were displayed. The failure occurred on several different occasions. The con
... tact stated that the vehicle was serviced under an unknown NHTSA Campaign Number; however, the failure recurred. The vehicle was towed to a dealer, where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was towed back to the dealer, where it was determined that the engine needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 28,000.Read more
Incident date: Apr 30, 2025
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving at approximately 65 MPH, the vehicle stalled, and there was smoke coming from the engine compartment. Additionally, the contact stated that the vehicle was experiencing excessive oil consumption. The messages "Put Vehicle in Neutral" and "Check Oil" were displayed. The failure occurred on several different occasions. The con
... tact stated that the vehicle was serviced under an unknown NHTSA Campaign Number; however, the failure recurred. The vehicle was towed to a dealer, where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was towed back to the dealer, where it was determined that the engine needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 28,000.Read more
Incident date: Oct 1, 2025
My backup camera does not work when engaged in reverse, causes the radio to turn off and on.
Incident date: Feb 11, 2026
The contact owns a 2024 GMC Acadia. The contact stated that while driving at an undisclosed speed and depressing the brake pedal, the brakes made an abnormal squealing sound. Additionally, brake pad dust was frequently visible on the rims. The dealer was contacted and advised that the brake issue was caused by driving through a car wash. The vehicle was not repaired. The manufacturer was not notif
... ied of the issue. The failure mileage was 25,312.Read more
Incident date: Mar 20, 2024
I purchased a 2024 GMC SIERRA 1500 Denali Crew Cab Diesel 3.0L After several times bringing the truck to the dealership I purchased from and conduct all service related work. They finally found a crack/whole in the sidewall that was not done by any road hazard to cause damage but looks like a manufacturer defect. This is now not only prominent on one tire but two of the tires. The area is on the
... covex area of the tire. BRIDGESTONE ALENZA A/S 02 Size 275/50/R22 This is a huge safety concern as a blowout at 65MPH could cause significant harm to not only people in my vehicle but to others. This is an advisement to get the right attention on this before something catastrophic or deadly. With plenty of tread on the tires (6/32), which equated to 50% life on the tire. The dealership is trying to make me pay for a manufacturer defect of $600+ for the two tires.Read more
Incident date: Apr 3, 2026
I own a 2022 GMC Sierra 1500 AT4. The vehicle developed a clear engine knocking noise. I first brought the vehicle to the dealership while under 150,000 miles for inspection related to a recall. The dealership only performed a computer scan and oil change and stated no issue was found. No mechanical inspection was performed despite the noise. The issue continued and worsened. I returned to the de
... alership and the vehicle was kept for three days. During that time, the dealership again denied the existence of the noise and stated the vehicle was operating normally. When I picked up the vehicle, I immediately noticed the same noise and requested the technician to inspect it again. At that time, the technician acknowledged the noise and confirmed it was related to the recall. Despite this acknowledgment, General Motors declined to repair the engine and closed the case, offering only partial assistance toward purchasing a new vehicle instead of fixing the defect. The failure to properly diagnose the issue during the initial visit and the subsequent denial during the second inspection allowed a safety-related mechanical defect to worsen. This condition may result in engine failure or sudden loss of power while driving, creating a serious safety risk. The engine noise indicates a potential internal failure which could lead to sudden loss of power while driving, creating a safety risk. The initial failure to properly diagnose the issue may have allowed a safety-related defect to worsen beyond repair. Thank you [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Apr 17, 2026
I took the truck in for a recall they notified me and said it failed the test and there was metal in the oil and said it needed a new engine
Incident date: Jun 16, 2025
On 6/27/22 my 2020 gmc sierra 1500 at4 6.2L had lifter failure. The dealer fixed that problem and on 7/1/22 again has lifter failure. The dealer fixed that problem again. On 7/13/22 a third time engine had lifter failure again. I requested they need a different engine to be installed and GM agreed andthey install an L87 2022 engine. This engine seemed weak and not right since it was installed. On
... 10/13/222i took the vehicle in to the dealer with a complaint of ticking noise from engine area and complaint of shifting hard. The fix the shifting but nothing was wrong with engine according to the dealer. On 3/15/24 the noise are worse and I can smell fuel and noticed white milky residue on the oil cap plus a growling nose coming from engine. Coolant keeps going low and white smoke out the exhaust. The dealer does diagnosis and again nothing is wrong. Now starts the oil consumption testing and me letting the dealer know that I can smell oil and exhaust but they can't. On 8/29/2024 I take truck in for another diagnosis for rattle sounds I'm hearing under the hood from the engine especially when you accelerate. I pay $149.49 for the dealer to find the noise and they tell me they can't find anything, but everyone who has rode in the truck can. On 1/27/2025 I take the vehicle in again and the dealer does the valve cover leaking and replaces that is covered. On 2/3/2025 again vehicle back to dealer cause I can smell antifreeze and burning oil smell. The only thing they found was the muffler had a Lil leak so they wanted me to get it welded which i did and so can smell the oil. On 6/16/2025 I take the vehicle in for oil change and leave to go home then go to work about 95 miles or more and noticed after I parked and was working before I was going to head home there was a huge puddle of oil under the vehicle. I took pics. Found after inspecting my vehicle the oil cap was not in filer tube but instead sitting up on air shelf above radiator. Oil filter was about 3 turns loose.Read more
Incident date: Apr 29, 2026
During heavy rainfall in the mountains at dawn, my windshield wipers suddenly have stopped working. We can manually move the wipers with ease and can hear the motor engaging but both front wipers suddenly stopped. We were 1200 miles from home on what was supposed to be a vacation. Carvana reports 2 recalls for my reports but the dealerships have no recalls for my year of vehicle.
Incident date: Apr 17, 2026
Brand new delivery there was a noise that changes with engine RPM. It also changed with turning the steering wheel. The dealer diagnosed a bad power steering pump. Due to possible metallic contamination all related parts that are connected to the power steering pump including the HydroBoost brake assist are going to be replaced
Incident date: Apr 17, 2026
Brand new delivery there was a noise that changes with engine RPM. It also changed with turning the steering wheel. The dealer diagnosed a bad power steering pump. Due to possible metallic contamination all related parts that are connected to the power steering pump including the HydroBoost brake assist are going to be replaced
Incident date: Mar 22, 2026
While my husband was driving me and our 2 kids getting off of the highway, we experienced catastrophic engine failure. The engine just shut off with NO warning. It went in to Neutral and then park and shut off and would not turn back on. We were stranded on the side of the road in the dark while it was raining. We waited on an active roadway for 1 hour for a tow to come. It was towed to the deale
... rship. The dealership reported that the engine is blown and that they ordered a replacement. I have a case open with GM who has confirmed the engine replacement is under warranty but what is to say this won’t happen again with the new engine ? The vehicle is not safe.Read more
Incident date: Apr 18, 2026
we have had no issues with this vehicle at all. then one day notice a ticking in the area of the valve covers. Sounded to be more on drivers side. Thought maybe just the oil was low which has never happened before. Oil level was fine. I always change oil on regular intervals and there were no check engine lights and engine continued to run fine with no loss of power or ticking changing. It w
... as our only vehicle so we had to continue to drive that day. Wife was driving and said vehicle shuddered and started sounding funny and check engine light came on she was able to drive back home. Now ticking is worse with a clucking rattling sound now coming from oil pan. After some internet searching it very much sounds like issues many others are having with the 6.2l GM engine.Read more
Incident date: Apr 14, 2026
Driving normal traffic . Started hearing ticking . Check engine light flashing ,service esc and braking system light up. Parking not loud ticking from engine bay
Incident date: Apr 13, 2026
Automatic transmission solenoid control valve body got stuck open and ruined the whole transmission. This has been a reoccurring problem with these vehicles. Image is from a code read. Issue was confirmed by Gastorf Chevrolet, and an independent transmission shop.
Incident date: Apr 17, 2026
While traveling at highway speed, the hood-mounted air vent (factory-installed component) on my 2022 GMC Sierra 3500 HD suddenly detached from the vehicle without warning. Upon separation, the vent was propelled backward, striking both the hood and the windshield. The incident occurred during normal driving conditions, with no prior indication of looseness, damage, or defect in the component. The
... force of the detachment caused damage to the hood and posed a significant safety risk, as the debris impacted the driver’s line of sight and could have resulted in loss of control or injury. There were no external factors (such as collision or road debris) that contributed to the failure. This appears to be a failure of the factory-installed component and its mounting system. Safety Concern: This type of failure presents a serious hazard not only to the vehicle occupants but also to other motorists. A detached component at highway speed could strike nearby vehicles, cause sudden driver distraction, or lead to more severe accidents.Read more