Showing 64,800 complaints for GMC
Incident date: Aug 27, 2026
I received a notice months ago for possible engine problems. my dealer checked it out and everything was good except for changing oil from 0W-20 to 0W-40. i was in Atlanta, GA on 8/26 and by the time i got home on 8/27, engine was knocking. I barely made it home. the dealer has had the truck since. they said i have to have a new engine. no idea when they will get one inn or when i will get my truc
... k back. i opened a claim with GM (Case #108927907). GM basically offered no assistance, help, etc. i even tried to trade the truck back to my local GM dealership for another truck and they wouldn't offer enough on trade inn (says they wouldn't be able to sell it), GM Corporate wouldn't offer buy back, loyalty program money, etc. as they claim it's under a recall. I have never received anything about a recall for the engine. local Ford or Toyota dealerships will not even consider taking it in on a trade after new engine, says they cannot sell because of engine issue with 6.2L engine. so i'm stuck with a truck that i cannot sell or trade and is now worthless. I'm sure the new engine will fail as well.Read more
Incident date: Jul 1, 2026
My vehicle is under the L87 Recall from GM for engine failure. In September 2025 it was given the recall “fix”, different thicker oil. But on July 1 2026, my engine seized while I was driving 60 mph on the highway. GM has since replaced the entire engine and the radiator. But the “fix” obviously did not work.
Incident date: Jan 3, 2025
I was coming to a stop at a stop a 3 way stop intersection. I parked completely and when I stopped the vehicle just shut down I did not have any warning signs come on prior as I looked at the dash it said place vehicle into park and start. I tried that but truck did not start. Call my friends we towed the truck on a trailer to my house and set up an appointment with gmc here in Tucson az
Incident date: Aug 31, 2026
On 8/31/2026 at approximately 2330 hours I was driving my 6.2L Sierra home. I took a left hand turn and the engine stopped. This happened with zero warning. I attempted to restart the engine after coming to a stop and the starter clicked once and nothing happened. Had it towed to my dealership for service. I was told the engine seized and will need to be replaced. I went through the recall proces
... s earlier where I was told my engine passed inspection and the oil was replaced with heavier weight oil and I was told it was good to go.Read more
Incident date: Mar 29, 2026
I am reaching out to NHTSA due to a vehicle that I believe will get me and/or my family in a major accident and cause serious injury or death. The vehicle that I had purchased in 07/08/2025 had a clean history report and was bought at 54,587 miles. It started having issues 8,563 miles later (odometer reading 63,150 ) on a trip that was 400 miles round trip. I was driving the vehicle on a highway a
... t 65 mph and i felt a knocking vibration in the pedal it was not long before i could even pull over when the engine throttle had completely lost power causing the vehicle to almost come to a complete stop immediately having to steer onto the shoulder. after failing with no check engine light or warning present during the use of the vehicle on the road. it was giving off high temp/engine overheating with the engine making a continuous knocking sound in the engine. It eventually seized to work completely not being able to shift into neutral to push, and had to get it towed to the dealership 204 miles away. GM had advised the dealership to replace the whole engine which they did, and that second engine had given out 678 miles later (odometer reading 63,828.) I am now on my THIRD engine and i cannot trust or rely this vehicle for saftey or transporation. i have reached out to GM to file a claim and attempt to adress this issue to try and come to a resolution, however they denied my claim and have said that i am not "eligible" for a buyback program. I am considering getting legal attorney this is very frustrating to say the least GM is a terrible manufacturer for this issueRead more
Incident date: Mar 29, 2026
I am reaching out to NHTSA due to a vehicle that I believe will get me and/or my family in a major accident and cause serious injury or death. The vehicle that I had purchased in 07/08/2025 had a clean history report and was bought at 54,587 miles. It started having issues 8,563 miles later (odometer reading 63,150 ) on a trip that was 400 miles round trip. I was driving the vehicle on a highway a
... t 65 mph and i felt a knocking vibration in the pedal it was not long before i could even pull over when the engine throttle had completely lost power causing the vehicle to almost come to a complete stop immediately having to steer onto the shoulder. after failing with no check engine light or warning present during the use of the vehicle on the road. it was giving off high temp/engine overheating with the engine making a continuous knocking sound in the engine. It eventually seized to work completely not being able to shift into neutral to push, and had to get it towed to the dealership 204 miles away. GM had advised the dealership to replace the whole engine which they did, and that second engine had given out 678 miles later (odometer reading 63,828.) I am now on my THIRD engine and i cannot trust or rely this vehicle for saftey or transporation. i have reached out to GM to file a claim and attempt to adress this issue to try and come to a resolution, however they denied my claim and have said that i am not "eligible" for a buyback program. I am considering getting legal attorney this is very frustrating to say the least GM is a terrible manufacturer for this issueRead more
Incident date: Mar 29, 2026
I am reaching out to NHTSA due to a vehicle that I believe will get me and/or my family in a major accident and cause serious injury or death. The vehicle that I had purchased in 07/08/2025 had a clean history report and was bought at 54,587 miles. It started having issues 8,563 miles later (odometer reading 63,150 ) on a trip that was 400 miles round trip. I was driving the vehicle on a highway a
... t 65 mph and i felt a knocking vibration in the pedal it was not long before i could even pull over when the engine throttle had completely lost power causing the vehicle to almost come to a complete stop immediately having to steer onto the shoulder. after failing with no check engine light or warning present during the use of the vehicle on the road. it was giving off high temp/engine overheating with the engine making a continuous knocking sound in the engine. It eventually seized to work completely not being able to shift into neutral to push, and had to get it towed to the dealership 204 miles away. GM had advised the dealership to replace the whole engine which they did, and that second engine had given out 678 miles later (odometer reading 63,828.) I am now on my THIRD engine and i cannot trust or rely this vehicle for saftey or transporation. i have reached out to GM to file a claim and attempt to adress this issue to try and come to a resolution, however they denied my claim and have said that i am not "eligible" for a buyback program. I am considering getting legal attorney this is very frustrating to say the least GM is a terrible manufacturer for this issueRead more
Incident date: Mar 2, 2026
Loss of power, had engine repaired, replaced passenger side head and cylinder. Now drivers side is having the same issue.
Incident date: Aug 31, 2026
Harness for the airbag gave out. Puts the passenger at risk. Confirmed by service members at Rodenroth Motors Inc. in Sault Ste Marie MI. Message said service "Restraint system". There was no official incident date. One day whenever somebody sat in the passenger side the warning would appear.
Incident date: Oct 1, 2025
10/01/25: Vehicle brought to dealership for the 6.2L Engine Loss of Propulsion Recall. Engine Passed the Pico vibration test. Oil was changed from 0W-20 to 0W-40. Mileage was 29K. 06/17/26: Engine Seized at 43K miles. Was travelling 50 MPH up a Mtn Pass. Barely had enough momentum to roll to the right shoulder out of traffic. 07/07/26: New motor installed. Back to 0W/20 oil. Since ownership, I
... have to on a regular basis reset the Collison Warning from Seat Vibration to Beeps. It appears to reset back from Beeps to Seat Vibration every time there is an over the air software update. It might even just randomly reset. I cant tell for sure. I recently had a small backing accident were I was expecting the Beeps to alert me. I mentioned this to my auto insurance company. They told me this was not the first time they have heard of this type of situation.Read more
Incident date: Oct 1, 2025
10/01/25: Vehicle brought to dealership for the 6.2L Engine Loss of Propulsion Recall. Engine Passed the Pico vibration test. Oil was changed from 0W-20 to 0W-40. Mileage was 29K. 06/17/26: Engine Seized at 43K miles. Was travelling 50 MPH up a Mtn Pass. Barely had enough momentum to roll to the right shoulder out of traffic. 07/07/26: New motor installed. Back to 0W/20 oil. Since ownership, I
... have to on a regular basis reset the Collison Warning from Seat Vibration to Beeps. It appears to reset back from Beeps to Seat Vibration every time there is an over the air software update. It might even just randomly reset. I cant tell for sure. I recently had a small backing accident were I was expecting the Beeps to alert me. I mentioned this to my auto insurance company. They told me this was not the first time they have heard of this type of situation.Read more
Incident date: Oct 1, 2025
10/01/25: Vehicle brought to dealership for the 6.2L Engine Loss of Propulsion Recall. Engine Passed the Pico vibration test. Oil was changed from 0W-20 to 0W-40. Mileage was 29K. 06/17/26: Engine Seized at 43K miles. Was travelling 50 MPH up a Mtn Pass. Barely had enough momentum to roll to the right shoulder out of traffic. 07/07/26: New motor installed. Back to 0W/20 oil. Since ownership, I
... have to on a regular basis reset the Collison Warning from Seat Vibration to Beeps. It appears to reset back from Beeps to Seat Vibration every time there is an over the air software update. It might even just randomly reset. I cant tell for sure. I recently had a small backing accident were I was expecting the Beeps to alert me. I mentioned this to my auto insurance company. They told me this was not the first time they have heard of this type of situation.Read more
Incident date: Aug 18, 2026
The contact owns a 2024 GMC Sierra 2500. The contact stated that while driving 5 MPH, the vehicle lost brake and power steering functionality, and there was smoke coming from underneath the hood. The contact stated that power steering fluid was leaking onto the engine. No warning lights were illuminated. The vehicle was towed to a local dealer, where it was diagnosed, and the contact was informed
... that the power steering pump had seized, the belt and hoses had failed, and the parts needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 40,832.Read more
Incident date: Aug 18, 2026
The contact owns a 2024 GMC Sierra 2500. The contact stated that while driving 5 MPH, the vehicle lost brake and power steering functionality, and there was smoke coming from underneath the hood. The contact stated that power steering fluid was leaking onto the engine. No warning lights were illuminated. The vehicle was towed to a local dealer, where it was diagnosed, and the contact was informed
... that the power steering pump had seized, the belt and hoses had failed, and the parts needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 40,832.Read more
Incident date: Apr 12, 2024
this year model was recalled do to engine problems. Ours wasn't one that was on the recall list. We ended up having to have the motor rebuilt and cost us around $7000. We have seen where these models are still having problems, so i wanted to report our problem and the money spent to get it fixed.
Incident date: Aug 30, 2026
The contact owns a 2017 GMC Yukon XL. The contact stated that on several occasions while driving at various speeds, there was a loud ticking and tapping sound coming from the engine compartment. The vehicle was taken to two independent mechanics, where it was diagnosed and determined that there was a lifter failure caused by the AFM system and an engine misfire, and that the lifters, camshaft, and
... timing chain needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 137,000.Read more
Incident date: Jul 9, 2026
While driving, my 2023 GMC Sierra with the L87 6.2L engine experienced a sudden, complete, catastrophic loss of engine power. There were no warning lights or messages prior to the failure. This was a one-time event, but it left the truck inoperable and I have been without the vehicle since it happened. The vehicle had recently passed applicable recall checks and had a routine oil change performed,
... so it was properly maintained leading up to the failure. A sudden loss of engine power while driving poses a serious safety risk, including the possibility of a collision if it happens in traffic or at highway speed. It is unknown whether a dealer has confirmed the root cause, as the vehicle has been out of service since the incident.Read more
Incident date: Mar 1, 2025
My engine has failed twice. I am now on my third engine. The vehicle stalled while driving on a highway, was in the shop for nearly 3 months and was "fixed" with same 6.2 engine. Eight months later it stalled again was in the shop for 2 months with a new engine. I was informed that they still don't know the issue and they just put the same type of engine. A bandaid was placed in my vehicle and I'
... m suppose to feel safe in it.Read more
Incident date: Mar 1, 2025
My engine has failed twice. I am now on my third engine. The vehicle stalled while driving on a highway, was in the shop for nearly 3 months and was "fixed" with same 6.2 engine. Eight months later it stalled again was in the shop for 2 months with a new engine. I was informed that they still don't know the issue and they just put the same type of engine. A bandaid was placed in my vehicle and I'
... m suppose to feel safe in it.Read more
Incident date: Sep 1, 2025
Automatic Transmission not shifting properly unable to accelerate bangs gears while shifting noises from the transmission not reported no warning lamps
Incident date: Aug 27, 2026
I recently pulled over to help a woman driving a 2026 GMC Terrain who had run out of gas in the middle of XXX in Virginia. Obviously, the first priority was to get the vehicle out of the travel lanes and onto the shoulder. I tried to figure out how to put the Terrain into neutral so we could move it, only to discover that **the vehicle cannot be shifted into neutral if it is not running.** Since
... it was out of gas, it could not start, meaning we could not put it in neutral and could not move it out of the roadway. Fortunately, a VDOT Safety Service Patrol truck came by. The driver stopped to help and thankfully had gasoline. However, I was told that, according to policy, he could not put gas in the vehicle while it was still in the travel lanes. This created an extremely dangerous catch-22: **the vehicle could not be moved because it could not start, it could not start because it was out of gas, and gas could not be added because it had not been moved out of the roadway.** I believe this is a serious safety issue with the vehicle. A disabled vehicle should have a reliable way to be placed in neutral regardless of whether the engine can start. This is especially important after a breakdown or crash, when the vehicle may need to be moved quickly to protect the occupants, other drivers, or first responders. If there is a manual emergency procedure for putting a completely disabled Terrain into neutral, it should be clearly documented and readily accessible to drivers and roadside assistance personnel. If there is no practical method, I believe GMC needs to address this design. A modern vehicle should not become an immovable roadblock simply because it ran out of fuel. Please investigate this issue and take whatever action is necessary to ensure disabled vehicles can be safely moved out of active traffic lanes.Read more
Incident date: Apr 30, 2026
Vehicle is equipped with the 6.2L L87 V8 engine. Prior to receiving the dealer service for Recall 25V-274, the vehicle experienced a distinct highway vibration, powertrain shudder, and fluctuating/jumping RPMs on the highway. The dealer subsequently performed the recall remedy by updating the vehicle to the thicker 0W-40 oil specification. However, the underlying transmission torque converter had
... already suffered catastrophic failure due to the powertrain stress/shudder and required a complete transmission replacement at 84,000 miles. I am reporting this because the initial 6.2L engine defect and subsequent recall remedy overlap heavily with severe powertrain and torque converter failures at low mileageRead more
Incident date: Apr 30, 2026
Vehicle is equipped with the 6.2L L87 V8 engine. Prior to receiving the dealer service for Recall 25V-274, the vehicle experienced a distinct highway vibration, powertrain shudder, and fluctuating/jumping RPMs on the highway. The dealer subsequently performed the recall remedy by updating the vehicle to the thicker 0W-40 oil specification. However, the underlying transmission torque converter had
... already suffered catastrophic failure due to the powertrain stress/shudder and required a complete transmission replacement at 84,000 miles. I am reporting this because the initial 6.2L engine defect and subsequent recall remedy overlap heavily with severe powertrain and torque converter failures at low mileageRead more
Incident date: Aug 27, 2026
My 2021 GMC Yukon Denali with approximately 88,000 miles developed a significant engine knocking noise and was towed to a GMC dealership for diagnosis. The dealership confirmed diagnostic trouble code P0301 (engine misfire) and documented a “knocking noise in lower end at piston rod crankshaft area.” The dealership advised that my vehicle is not currently included in the existing GM recall for
... certain 6.2L L87 engines. The vehicle has the 6.2L L87 V8 engine. I am concerned because the documented knocking is located in the lower engine area involving the piston/connecting rod/crankshaft area, which is consistent with the type of internal engine failure associated with the L87 engine investigation and recall. I am concerned about the possibility of sudden engine failure and loss of propulsion while driving. I am requesting that NHTSA investigate this failure and consider whether vehicles outside the current recall population should also be included. I also recently experienced an engine replacement on another 2024 GMC vehicle. I am providing that information as additional customer experience, but I am not claiming that the two failures are necessarily caused by the same defect.Read more
Incident date: May 15, 2024
Transmission stopped at 29,000 miles, engine died and was replaced at 32,000 miles
Incident date: May 15, 2024
Transmission stopped at 29,000 miles, engine died and was replaced at 32,000 miles
Incident date: May 23, 2026
My truck is a 2019 6.2 motor GMC it fell outside of the motor recall. On May 23, 2026, I had a catastrophic engine failure. GM would not cover any costs associated with the engine replacement. I have a photo of the failed lifter. This issue is a problem with GM and its active fuel management system. GM knew about the issue and put the engine into service.
Incident date: Jun 26, 2026
On 06/26/26, I was driving my 2024 GMC Sierra 1500 AT4 with 6.2 engine (Aug. 2024 engine build date) with 27,614 miles down the highway at 60-65mph and my RPMs started jumping and I lost engine power and received this P0016 error message. I was able to coast off the highway at the next exit but this put me and my family at risk. Once I was able to coast into a parking lot, my truck wouldn't start
... anymore. My dealer picked up my truck and the engine was on backorder and then was replaced and I got the truck back on 08/21/26.Read more
Incident date: Jun 15, 2026
The contact owns a 2023 GMC Yukon. The contact stated that while driving 65 MPH and depressing the accelerator pedal, the transmission shifted into neutral. The contact pulled over to the right side of the road and attempted to shift into drive; however, the failure persisted, and the vehicle lost power. No warning light was illuminated. The contact stated that the vehicle was towed to the dealer
... and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was serviced under NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); by the owner of the vehicle, but the remedy failed to fix the vehicle. The contact stated that the failure had occurred after the recall repair. The manufacturer was notified of the failure and informed the dealer to replace the engine. The engine was replaced, and the vehicle was repaired. The failure mileage was 56,600.Read more
Incident date: Jun 30, 2026
See attached document for complaint.
Incident date: Aug 27, 2026
While driving truck jolts (rear wheels lock up) then downshifts into a lower gear. Appears to be similar issue as described in Recall 24V797 and 25V148. Not sure why my VIN does not show up on recall. Based on description it is the same problem. Feels unsafe to drive.
Incident date: Sep 1, 2026
Factory powertrain programming actively locks out 9th gear (overdrive) during freeway driving at speeds exceeding 60–65 mph. The vehicle refuses to upshift from 8th to 9th gear, forcing sustained high-RPM operation during standard highway cruising.
Incident date: Jul 25, 2026
Engine failure
Incident date: Feb 1, 2024
The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving approximately 65 MPH, the transmission shifted to neutral(N), and the contact was unable to control the vehicle. The vehicle was coasted to the side of the road, and the transmission failed shift into park(P), reverse(R), or drive(D). The message "Conditions no Longer Exist for Driving," was displayed on the screen. The
... vehicle was towed to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The contact was informed that the nuts were welded to the engine, causing a failure with the engine overheating. The failure also occurred while driving 65 MPH, and the transmission shifted into neutral with the same message displayed on the screen. The vehicle was towed back to the dealer, and it was diagnosed with engine failure. The contact stated that the engine was replaced. The dealer informed the manufacturer of the failure. The failure mileage was approximately 34,000.Read more
Incident date: Aug 16, 2026
Our 2021 YukonXL started running rough and the check engine light came on. We took it to the shop the next day and was told there was complete lifter failure and that we need a new engine.
Incident date: Aug 5, 2026
I just had to put my 4th engine in my 22 Sierra at4 with the 6.2 V8. I currently have 103k miles
Incident date: Aug 30, 2026
I was driving home from family’s house 2 hrs away and got home late. When I got home I noticed the upper front grille assembly or top chrome trim piece for the 2024 GMC Sierra 1500 Denali Ultimate flew off at some point while driving. That could have caused an accident for others and myself but luckily no one is harmed.
Incident date: Jun 26, 2026
The vehicle experienced a complete loss of infotainment/audio functions immediately following a GM over-the-air software update. The OnStar indicator turned red, all vehicle audio including turn-signal sounds stopped functioning, and the rear backup camera stopped displaying an image. The backup camera failure creates a safety concern because it eliminates a federally required rear visibility safe
... ty feature. GM has advised me that software updates do not cause these problems and instead reveal an underlying issue. However, GM Preliminary Information bulletin PIT5971B identifies a software anomaly associated with loss of audio and a red OnStar LED on affected GMC Terrain vehicles, which closely matches two of my symptoms. I am concerned that a software-related defect may be causing or contributing to the simultaneous loss of multiple vehicle functions, including the backup camera. The loss of the backup camera is a significant safety concern because it prevents me from seeing the area directly behind the vehicle when reversing. The simultaneous loss of multiple functions occurred immediately after the GM software update and has persisted despite completing the recommended reset/troubleshooting procedures. GM is currently requiring me to pay for diagnosis despite the failure occurring immediately after the OTA update. I am requesting that NHTSA document and investigate this potential safety-related software defect. GMC Customer Service case 107120047Read more
Incident date: Jun 26, 2026
The vehicle experienced a complete loss of infotainment/audio functions immediately following a GM over-the-air software update. The OnStar indicator turned red, all vehicle audio including turn-signal sounds stopped functioning, and the rear backup camera stopped displaying an image. The backup camera failure creates a safety concern because it eliminates a federally required rear visibility safe
... ty feature. GM has advised me that software updates do not cause these problems and instead reveal an underlying issue. However, GM Preliminary Information bulletin PIT5971B identifies a software anomaly associated with loss of audio and a red OnStar LED on affected GMC Terrain vehicles, which closely matches two of my symptoms. I am concerned that a software-related defect may be causing or contributing to the simultaneous loss of multiple vehicle functions, including the backup camera. The loss of the backup camera is a significant safety concern because it prevents me from seeing the area directly behind the vehicle when reversing. The simultaneous loss of multiple functions occurred immediately after the GM software update and has persisted despite completing the recommended reset/troubleshooting procedures. GM is currently requiring me to pay for diagnosis despite the failure occurring immediately after the OTA update. I am requesting that NHTSA document and investigate this potential safety-related software defect. GMC Customer Service case 107120047Read more
Incident date: Aug 1, 2026
Cam Shaft and Lifter failure. Lifters were replaced 3 times
Incident date: Aug 21, 2026
The contact owns a 2025 GMC Yukon XL. The contact stated that while driving 15 MPH, there was an abnormal grinding sound coming from the engine. There was no warning light illuminated. The vehicle was taken to a local dealer to be diagnosed, and the contact was informed that there was a catastrophic engine failure caused by the thrust bearing. The contact was informed that the engine needed to be
... replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The contact referenced Technical Service Bulletin: 25-NA-307; as a possible cause for the failure. The failure mileage was 16,184.Read more
Incident date: Jul 31, 2026
Engine went out very devastating $10k out of pocket
Incident date: Jul 31, 2026
Engine went out very devastating $10k out of pocket
Incident date: Aug 3, 2026
the engine started knocking and vehicle shaking while on interstate. vehicle was towed to service center and they determined that one valve was stuck and another one turned 90 degrees and the cam shaft was also ruined. It was required to replace the engine as that was a less costly option than replacing the damaged parts. A dash light came on and was flashing while my daughter was driving it to
... [XXX]. The vehicle was towed from the parking lot they were at when reaching [XXX]. Unsure of where the engine went to after the service center removed it, but I think they had to send it back to GM. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Aug 31, 2026
After engine passed check for possible replacement because of recall, engine failed 5000 miles after. Even though I have a new engine now, there is no warranty coverage other than the lower part of the engine. I am already having misfire issues.
Incident date: Aug 22, 2026
On August 22, 2026, while driving my 2022 GMC Sierra westbound on State Route 84 at highway speed, with strong westerly winds of approximately 35 knots, the front passenger-side wheel-opening molding/fender flare completely detached from the vehicle without warning. The detached molding struck the passenger-side exterior mirror and narrowly missed a motorcyclist traveling behind me. This created
... a serious safety risk because a substantial exterior component became a projectile at highway speed and could have struck the motorcyclist or another vehicle. There were no warning lights, messages, unusual noises, or other symptoms before the failure, and there was no known collision or impact preceding the incident. I did not initially know what had detached. After arriving home and inspecting the vehicle, I discovered the entire passenger-side front wheel-opening molding was missing. The detached component was not recovered. I reported the incident to my GMC dealer, which performs my regular service and warranty work. The vehicle was inspected on August 31, 2026. The dealer declined warranty coverage but, to my knowledge, did not determine why the component detached. Afterward, I inspected the corresponding driver's-side molding and found a substantial visible gap at its leading edge between the molding and vehicle body. Comparison with other GMC Sierra vehicles of the same model showed their moldings appeared to sit substantially more flush. The vehicle and remaining molding are available for inspection, and I have photographs documenting the condition. The cause of the failure is currently UNKNOWN. I have escalated the incident to GMC Customer Assistance under Case #109189284 and requested a product-safety review. I am concerned there may be an installation, attachment, or component-retention issue that could allow these moldings to detach while driving.Read more
Incident date: Jun 28, 2026
Engine (L87) blew up on I-80 in passing lane with no warning 14,635 miles. Almost got hit by several cars trying to get off the interstate. Sat alongside the road for 1 1/2 hours until tow truck arrived in 101 degree weather. GM provided no roadside assistance since it was a Sunday. They were incorrect with their information which caused us to walk to nearest Walmart several miles. We were 5 1/2 h
... rs from home and our son picked us up. GM dealer installed new engine and we were without our vehicle 45 days with no alternative transportation provided. Our repurchase was denied and was incorrectly done so by Iowa State Lemon Law (purchased in Iowa)Read more
Incident date: Jul 28, 2026
While driving the vehicle on the interstate, the vehicle shifted to neutral without warning. Our daughter was able to fortunately coast to the side of the interstate without incident. The vehicle was shut off and attempted to turn back on without success, so vehicle was towed to Lugoff Chevy dealership where repairs are always performed. The dealership stated the problem was related to fuse bloc
... k melted and shorted. The problem was fixed; however, I am not convinced that this shouldn't be something requiring a recall and needs further investigation. There was no warning lamps, messages, or symptoms prior to the failure.Read more
Incident date: Jul 28, 2026
While driving the vehicle on the interstate, the vehicle shifted to neutral without warning. Our daughter was able to fortunately coast to the side of the interstate without incident. The vehicle was shut off and attempted to turn back on without success, so vehicle was towed to Lugoff Chevy dealership where repairs are always performed. The dealership stated the problem was related to fuse bloc
... k melted and shorted. The problem was fixed; however, I am not convinced that this shouldn't be something requiring a recall and needs further investigation. There was no warning lamps, messages, or symptoms prior to the failure.Read more
Incident date: May 13, 2026
I purchased a 2007 GMC Envoy from Premier Auto Sales in [XXX] in XXX. I put down $1,250 and I pay $500 a month, $250 bi-weekly. I owe $4767 left on the vehicle in total. A month or two after I bought the vehicle, my car started driving rough and not being able to handle small bumps without rocking violently. I took the vehicle to Jay's Auto Repair in [XXX] where the owner [XXX] placed the vehicle
... on a rack and lifted it up to identify the issue. Both rear control arms rusted off of the frame and had completely unattached. While handling this, [XXX] called me over to come look at the undercarriage of the vehicle to advise me that the vehicle's frame is completely rusted out, and is not safe for my [XXX] [XXX], or myself to be driving or riding in. [XXX] then advised me to contact the dealership to at least see if they'd be willing to trade the vehicle in, so I could be paying $500 a month for a drivable, reliable and safe vehicle for my family and I. The dealership gave me 4 or 5 options on just as mechanically unsound vehicles with extremely high mileage, but I'd still have to pay a rollover on my current rusted out frame vehicle because he'd only give me $2500 for it in credit to another vehicle. Once I expressed interest in a Dodge Journey Crossroad they had, the dealership owner [XXX] advised I'd have to put more money down to get a car that good, and reliable if I wanted to trade mine in due to the unsafe frame. Since this discussion, I still have the vehicle in my possession, however I have become $500 default in payments due to different repairs needing to be made on the vehicle itself INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more