2021 Chevrolet Suburban

These are unverified consumer reports filed with NHTSA, shown as submitted.

• 12/30/2024· FUEL/PROPULSION SYSTEM

  The fuel tank strap bolts became loose and fell out, causing the fuel tank to drop. The vehicle has the original fuel tank and to our understanding, it has never been removed. We purchased the vehicle new and are the only owners.

• 12/27/2025· ENGINE

  The car was driving at 60 MPH on a regular commute to work and the car was stalling and shaking and soon after the check engine light came on with multiple issues.

• 12/20/2023· FUEL SYSTEM, GASOLINE,ELECTRICAL SYSTEM

  The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 45-55 MPH, the vehicle lost motive power inadvertently. There was no warning light illuminated. The contact was able to veer to the side of the road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that the fuel pump power control module had failed and needed to be replaced. Additionally, the dealer informed the contact that the battery needed to be replaced. The contact related the failure to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline) however, the dealer informed the contact that the VIN was not included. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.

• 12/17/2021· EXTERIOR LIGHTING

  The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 45 MPH, the driver’s side low-beam headlight was pointing inward, affecting his visibility of the roadway. The contact stated that the failure later occurred with the passenger’s side low-beam headlight. There were no warning lights illuminated. The vehicle was taken to the dealer who diagnosed that the headlights needed to be replaced. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 62,000.

• 12/15/2025· ENGINE

  Vehicle experienced sudden engine malfunction including rough idle, hard misfire, and flashing check engine light. Vehicle was diagnosed with a collapsed lifter and internal engine failure. Metallic debris was found in the engine oil, including silver and gold/bronze particles consistent with bearing material. A Chevrolet dealer inspected the vehicle and determined that the engine requires complete replacement due to internal mechanical failure. Vehicle is equipped with the 6.2L V8 (L87) engine. The failure occurred without warning and presents a safety concern due to potential loss of propulsion. This vehicle is not currently included in the existing GM 6.2L engine recall, despite exhibiting the same failure characteristics reported in other affected vehicles with the same engine and year that were included in the recall. Vehicle has not been driven since metal contamination was discovered to prevent further damage

• 12/14/2024· POWER TRAIN

  Has been in the dealer multiple times for very hard shifting issues. Jerks when shifting gears from stop or in lower speeds. They have tried everything and cannot figure it out. But the techs have felt it when driving as well. It has been doing it for a long time. And it’s a concern when driving, I do not feel safe.

• 12/10/2025· POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM

  I have a 2021 Chevy Suburban with the L87 6.2L V8 engine. At 7k miles, we have lost propulsion, leaving the car undrivable. resulted in the dealer replacing all 16 lifters under a recognized bulletin. I never received extended 6yr 100k mile powertrain warranty as described in the bulletin. Since then, There have been 3 other issues with loss of propulsion, resulting in replacement of fuel pump modulator. belt pulley system, One of the incidents left us without power or control of our vehicle on the interstate, with no where to pull over or get out of the way of oncoming semi trucks. The last incident again left the vehicle undriveable at 84k miles, with the dealer currently reporting that it is a lifter and cam shaft issue. Resulting in a 10k bill. They state that it is not covered under the recall of these engines because it is the top of the engine versus the bottom. Clearly, the engine oil problem noted in the recall has contributed to these issues . and the crankshaft not syncing properly with the lifters.

• 12/05/2022· SEATS

  2021 CHEVROLET SUBURBAN. CONSUMER WRITES IN REGARD TO SAFETY RECALL ADVISING THE THIRD ROW SEATING POSITION BEING UNSAFE.

• 12/02/2024· ENGINE

  My wife was driving the car witb our kids when the check engine light came on and it started struggling and smoking. We got it to autozone to be scanned. The scan showed that it was a misfire on cylinder 3. After a mechanic trying to troubleshoot the problem he found that there was no compression. We towed the vehicle to a Chevrolet dealership where the found that the lifters in 1 bank needs to be replaced. This a known issue and a letter of coverage has been issued. However I'm being told that my vin number is not covered even though it is the exact same issue.

• 11/30/2025· ELECTRICAL SYSTEM,SERVICE BRAKES,FUEL/PROPULSION SYSTEMFire

  The vehicle caught on fire in our garage The Vehicle had been parked outside than moved into the garage nothing smelled like smoke after it was parked other than the exhaust after I got out of my suburban I have a good idea what caused this but until its done being ispected I happened to look back and saw a flame in the Suburban coming from the center area of the dash on the right hand side of the divers seat I thought for sure it was gonna blow up the dogs were in the back of the garage behind the vehicle off to the side I started screaming and calling for help and had to go around the house to the front door to get my husband and him and one of my sons went out there why I called 911 and was with my other son whom has a disability and they told us to get out of the house and I could not get back to the garage we were on the other side of the house going to go out on the patio my other son and husband were in the garage trying to put it out and getting to the two dogs my son went through the smoke to reach the dogs were one ran out on her own and the young German shorthair was in shock and he had to carry the 2 year old out and put them in a safe place but my husband was still trying to put out the fire he hooked his pick up to the suburban to try to pull it out of the garage and it moved maybe a few inches he was stuffing wet towels on it also to try to stop it nothing worked the fire dept showed up and police after having to tear the inside of the front of the dash out our home owners insurance adjuster was out yesterday The Suburban has had multiple and thousands of dollars of mechanical issues even Gm putting a new engine in it after only a year in a half of owning it fluid got pushed up into the wiring after a service last year there was splater inside the dash glass after a new steering wheel was istalled and I asked the dealer if they could fix that and they said that they didn't go inside there the amount of detail that has led up to this is huge

• 11/30/2023· FUEL/PROPULSION SYSTEM

  Vehicle stalled while driving in center lane on I-4 in Orlando in traffic. There were no warnings prior to the vehicle stalling. When trying to restart it, the low fuel warning appeared along with the check engine light. I was unable to restart the vehicle leaving us stranded in the middle lane of I-4 in heavy traffic. FL Road Rangers arrived to offer aid and had to manually place the vehicle in Neutral under the vehicle at the transmission. Vehicle was then pushed off the highway onto the shoulder. Vehicle was towed to Starling Chevrolet which was the closest Chevrolet dealer from the incident. Starling's Service Department had to replace the battery in order to run a diagnostic. Once the battery was replace, the diagnostic indicated that the issue is with the Fuel Pump Power Control Module Part No. 13544060 / 13554821. This part is on back order with no known availability time provided. Vehicle is still sitting at Starling Chevrolet. Although my vehicle does not show any open recalls, I found that the fuel pump power control module for the 2021 Chevrolet Suburban is part of a known Product Safety Recall N212332040 Stall While Driving.

• 11/25/2025· ENGINE

  Went into limp mode on 11/6/25, took to the dealership where they found metal shavings in the oil due to a “stuck solenoid ‘A’”. Originally said that I’d need a whole new transmission, decided to do the cheaper easier repair and just replaced the valve train (not my choice) got it back on 11/13/25. On 11/24/25 I was on a very busy highway, at a red light, hit the gas when the light changed and the car didn’t move. Just revved the RPMs, then it suddenly lurched/surged forwards. Took it back to the dealership and they said “it doesn’t have any codes showing”. This is not normal behavior for a 4 year old vehicle with less than 40k miles on it.

• 11/21/2025· ENGINE

  We have a defective engine that stopped working after 120 miles. We can drive the car because it can leave us on the road or catch fire, this is what the mechanic told us, GMC option is to buy another car.

• 11/16/2022· UNKNOWN OR OTHER

  - unknown what system or component failed? - while awaiting to make a left turn from left turn lane with two vehicles in front and unknown number of vehicles behind me, vehicle suddenly shut off - problem has not been reproduced or confirmed by dealer, nor has shut off re-occurred since first incident October 26, 2022 - vehicle or component has not been inspected by others - there were no warning lamps, messages, or other symptoms prior to the failure on October 26, 2022, the vehicle just seemed to quietly idle down and stop

• 11/14/2022· Chest Clip, Buckle, Harness

  2021 CHEVROLET SUBURBAN. CONSUMER WRITES IN REGARD TO NHTSA SAFETY RECALL 22V-617. THE CONSUMER STATED THE RECALL NOTICE INFORMED HER NOT TO USE THE 3RD ROW UNTIL THEY ARE ABLE TO FIX THE SAFETY ISSUE WITH THE SEATBELT BUT DO NOT HAVE A REMEDY FOR THE RECALL.

• 11/13/2025· UNKNOWN OR OTHER,ENGINE

  I was driving and then the vehicle started running rough. There was no indication or warning lights before this happened. This is a huge safety issue because I could have had a wreck and injured people and my very own family. I took it to a Chevy dealership. They inspected the suburban and number 4 cylinder had a pool of oil in it. And they told me it need a new engine. Which it has the L87 engine that all the GM recalls are on. However, they are telling me mine isn't on the recall. They don't know if GM is going to cover it because it has 111,000 miles and it's out of the power train. It's the same engine they're having trouble with engines failures on. And I believe mine should be under the recall.

• 11/13/2024· FUEL/PROPULSION SYSTEM

  The fuel pump power control module (p129F, I believe) failed. I was in the carpool line when the engine sputtered then turned off, and would not turn back on. The engine light also came on. I had to walk my children the rest of the way, then got a tow truck. There were no dash light or other indications of a problem ahead of time. My local GM dealership was not able to get to me for multiple days, so I towed the vehicle to an independent mechanic. The mechanic informed me that there was already a recall on this part (Recall number N212332040). I paid for the repair, and when I contacted GM, was told that my VIN was not included in this recall. I would like my VIN added to the recall and other VINs with this same part that were not originally included in the recall.

• 11/13/2021· ELECTRICAL SYSTEM,ENGINE,FORWARD COLLISION AVOIDANCE

  Car suddenly swerved, loud knocking started. Multiple system failures started flashing. Forward collision, ECS, traction control, the car was vibrating, jerky. I have multiple videos as well. The dealership literally told me they’d seen a ton of these when I called immediately and then told me to keep driving because the damage was done and if the engine died well then it’s under warranty. I have 3 children under 5 and that is NOT an appropriate answer when I asked about it being safe to drive considering it’s jerky/shaking/knocking, and has multiple systems down. I’ve also googled and joined forums and this is apparently a common issue in the 2021 V8s and Chevy refuses to issue a recall. Would be more than happy to provide videos as well it won’t let me upload them with the photos. Was told it could be weeks before they even have parts

• 11/12/2024· EXTERIOR LIGHTING

  The headlamps are defective and unexpectedly break causing them to aim basically straight down towards the pavement making it unsafe to drive at night. In February of this year I took the vehicle to Cox Chevrolet in Bradenton and they said the headlamps would need to be replaced and it would cost several thousand dollars. I rarely need to drive at night and have been taking our son's car since then. There is a chance one broke and I didn't notice at first then the second one but, at this point, it is unsafe to drive the vehicle at night. I have found several posts on online forums where owners of other GM/Chevrolet vehicles with the same headlamps have had the same experience. Some have mentioned that an adjuster pin breaks and is not repairable (which I have confirmed with a service advisor at another Chevrolet dealership). I am [XXX] who drives responsibly (i.e. not going off road in my Suburban) so having an issue like this is of concern as it makes the vehicle suddenly unsafe to drive at night. This is not a defect that is noticeable during the day so anyone purchasing a used vehicle with this problem wouldn't know they essentially don't have headlamps (I can see maybe 10 feet in front of the car) until they get on the road at nighttime. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 11/08/2025· ENGINE

  Engine is shaking like a bearing is going out, I've seen multiple recalls on this engine but for some reason my 6.2 isnt apart of them.

• 11/07/2024· AIR BAGS,STRUCTURE,UNKNOWN OR OTHER

  I was sold a vehicle from a dealership in Green Bay Wisconsin under the impression all safety regulations were met. The day I drove it off the lot, I had issues with the back drivers' door, making wind noise. I had messaged the salesman, he stated it may have been the door seal. Days went by, it wasn't sitting well with me, I made an appointment with a local body shop in. regard's to the door and suspicion of something not right. I brought it to the body shop, they informed me, that the back air bags were deployed and stuffed back into the roof, body work on the left side was done incorrectly and is very unsafe to drive, seat belts where my children sit were finger tightened, frame is held on by a bolt etc. The body shop states that if this vehicle were to be in an accident, it would not sustain impact the way vehicles are designed to do so. The owner of the dealership I had bought from refuses to come to an agreement about this situation. I have all the paperwork and documents from the body shop along with another local dealership near me who I also brought it to look it over as well so the owner could understand that this vehicle should have never been able to be sold on his lot. They also agree that this is super unsafe and should not be driven until it is fixed properly and all safety standards should be met. They believe that it should have been totaled out, it is very obvious that the left side was hit and smashed in. I also asked the owner if he would feel safe for his children to drive in this vehicle and he said, “no” I have many documents/pictures/reports to share once needed.

• 11/06/2023· FUEL/PROPULSION SYSTEM,LANE DEPARTURE

  The fuel pump power control module caused the fuel pump to fail and resulted in unexpected engine stall. The issue cause me and my 4 children to be stuck in the middle of the road waiting for a tow truck for over 3 hours. The vehicle could only be put in neutral while the car was on. Since I couldn’t start my car I could not put it in neutral to move the vehicle out of 2 way traffic. We want the issue confirmed by the dealership but the police who aided me and my children inspected the vehicle and recommend getting the fuel pump look at. No warnings were displayed.

• 10/29/2025· ENGINE AND ENGINE COOLING

  See attached document for complaint. To Whom It May Concern, I am writing regarding the recall on my 2021 Chevy Suburban. While I understand there is currently no active solution for the issue, I want to stress the seriousness of the situation. As a mother of [REDACTED] living in Wisconsin, I am deeply concerned that if my truck were to shut down due to engine failure and we could not get help quickly, my family would be exposed to the risks from the fire that inevitably could arrive. Given the harsh winters there, this poses an unacceptable safety risk. Additionally, I paid for an extended warranty, believing I had plenty of coverage left. I recently brought my vehicle in only to be told that I was 500 miles past the 60,000-mile limit, I was under the impression the warranty had not expired, and if I had known otherwise, I would have brought it in much sooner. This issue has been ongoing for at least 6 months, and I have been aware of the mileage restriction, I would have scheduled service well before this point. On top of that, my Suburban continues to emit the smell of burnt oil. It is embarrassing to have my vehicle smell like it's burning every time I drive it, and it raises serious concerns about my health. Breathing in burnt oil fumes regularly cannot be good for my lungs or overall well-being. This issue has also created a financial burden for me, as I am currently trying to sell the vehicle. In its present condition—with the burning oil smell and unresolved recall—it is essentially unsellable. No buyer wants to take on these risks and uncertainties, leaving me stuck with a vehicle I can neither comfortably drive nor reasonably sell. This matter is not just about inconvenience. It is about safety, that matters, and other concerns, trust and accountability. Chevrolet has marketed its vehicles as reliable, family-safe transportation, and I want to feel assured that GM takes immediate action to properly address this oil consumption and/or issue. Anything less is unacceptable when it comes to the safety of families who trust your brand. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 10/25/2024· EXTERIOR LIGHTING

  The headlight adjuster failed. As a result, the headlight points straight down creating a safety issue at night. I have read online this is a common problem on suburbans and tahoes. This happened on my car around 60k miles and only ~3 years.

• 10/25/2023· FUEL/PROPULSION SYSTEM

  Fuel pump incident identified in recall N212332040. NHTSA says our 2021 Suburban was not involved in the recall. But the incident happened 3 separate times. Our dealer made the repair under warranty.

• 10/21/2025· ENGINE

  CAR BURNS EXCESSIVE AMOUNTS OF OIL AND HAVE TO ADD REGULAR QUARTS OF OIL BETWEEN THE MANDATORY OIL CHANGE. CONSIDERED VEHICLE COULD MALFUNCTION AND CAUSE AND ACCIDENT OR CATCH FIRE. DEALER SAID THEY HAVE RECALLS FOR OTHER CHEVY SUVS AND TRUCKS WITH SAME ISSUE BUT NOT MY PARTICULAR MAKE AND MODEL. THIS ISSUE WITH CHEVY'S BURNING OIL WARRANTS AN INVESTIGATION SINCE CHEVY IS NOT ADDRESSING THE ISSUE.

• 10/19/2024· WHEELS

  The 22 inch rims on my vehicle are cast aluminum I'm assuming. I have had several cracks causing me to rapidly loose air on the tires while driving at highway speeds. I have had three cracks in different rims within the last week and have had the rims repaired twice. The vehicle has 75k miles on it. This is a major concern and safety issue. I've never seen that many cracks happen at once. Some say well your hitting potholes but that isn't the case here.

• 10/16/2024· WHEELS

  Rims keep cracking on the inside where the tire is sealed. This has happen a total of three times to both front and rear passenger side. Tire pressures are 36psi as recommended by manufacturer. No major pot holes or other road hazards have been hit.

• 10/16/2023· EXTERIOR LIGHTING

  While night driving driver noticed the driver side headlight completly pointing down providing no visibility. Vehicle was brought into GM dealership where is was discovered the Driver LED headlight adjuster screw broken causing a safety issue, where the light beam pointed down. Vehicle light assembly is currently being inspected for replacement under manufacture warranty under 36,000 miles.

• 10/04/2025· ENGINE

  Engine while driving completely seized up. Crank shaft, cam shaft and oil pump water pump replaced. Low oil pressure alarm code present then sudden loss of power. Piston blown. There are similar recalls to 2021 suburbans however, this specific model is not in the recall. I was told I need a completely new engine. The car died in the middle of traffic and police had to call an emergency tow truck.

• 10/04/2022· SEAT BELTS

  I'm writing to complain about the proposed temporary resolution of the recall. I received a letter today advising me that repair parts were unavailable and that I should simply not use the third row seats until the inspection/repairs are completed. Like many people who own Suburbans, I bought this vehicle because we are a family of six. This is the only vehicle in our home that can fit both adults and all four children. Not using the third row is simply not an option for us. This is an unacceptable solution, no matter how temporary.

• 10/03/2023· ENGINE

  The contact owns a 2021 Chevrolet Suburban. The contact stated while driving approximately 35 MPH, the engine started to misfire, and the vehicle lost motive power. The contact stated that the check engine and other unknown warning lights were illuminated. The contact was able to drive the vehicle to a dealer who diagnosed the vehicle and determined that the lifters had collapsed. The lifters were replaced on only one side of the engine. The vehicle was repaired. The contact stated that the failure recurred one week after the repair. The manufacturer had been informed of the failure. The failure mileage was 36,126.

• 09/30/2024· FUEL SYSTEM, GASOLINE,ENGINE

  The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 55 MPH, the vehicle shut off unexpectedly and failed to restart. The transmission was in park(P) and failed to shift to neutral(N). The contact stated that several unknown warning lights were illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline). The vehicle was towed to an independent mechanic, who determined that the failure was due to the fuel pump module. The vehicle was towed to the local dealer, where it was diagnosed that the failure was due to the module and a battery replacement was needed. The dealer jumpstarted the vehicle. The vehicle was repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 90,000.

• 09/27/2024· VISIBILITY/WIPER

  Yesterday marked the 2nd time that the front windshield wipers on my 2021 Chevy Suburban (58k miles) randomly stopped working while driving down the highway in a rainstorm. They would not come out of the resting position regardless on what setting they were put to on the wheel switch. They continued to not work for the hour drive back to my house. The last time this happened all fuses, motor, etc were checked and tested good. The wipers started working again a day or so later, using the windshield wiper fluid button to test. This marks the second time my family has been put in a situation driving on the highway in a rainstorm with the wipers randomly stopping to work and having to navigate to safety with extremely limited visibility. This appears to be a fairly common issue with newer GM vehicles with the auto sense technology, found plenty of forums with the same experience. The major concern I have is that when this happens the wipers don’t work at all in any mode. Even trying to run in manual mode rather than auto sense the wipers will not move from the resting position. It leaves a driver with zero way to clear rain and see when this randomly occurs.

• 09/21/2021· SEAT BELTS

  My seat belt recall was not done said they did but did not do it ask them when were going to do it would never call or answer me need them to complete there recall on rear seat defective

• 09/19/2022· WHEELS,FORWARD COLLISION AVOIDANCE

  With cruise control activated, at least 10 times since I bought this expensive vehicle the automated emergency braking activated at highway speeds - causing the vehicle to full brake without warning and nearly causing an accident each time (handling risk and risk of being impacted from behind by a following vehicle). I have formally reported this issue to dealers in MN and MT, and they only thing they said was they could not duplicate the condition during brief test rides and this was not a know problem. I personally know this was a known problem and GM did a safety recall for this condition on MY15-20 Suburbans. This condition is definitely an unreasonable risk to motor vehicle safety. In additional, the original tires supplied by GM (Firestone) failed under normal driving conditions after only about 35,000 miles, and both GM and Firestone denied there was any warranty coverage. Since then, new Les Schwab tires failed at about the same mileage. Something is obviously not right with this vehicle, and this condition is also an unreasonable risk to motor vehicle safety. Finally, last week my front passenger wheel cracked. I have not hit anything significantly hard with that wheel - but it is nonetheless cracked. This is also obviously defective and an unreasonable risk to motor vehicle safety.

• 09/17/2025· EXTERIOR LIGHTING

  The headlight adjustment screw is broken. Was never used or adjusted and now the headlights point to the ground. GM does not offer a replacement part for the adjustment screw, the only fix is to purchase a whole new headlight assembly which is roughly $1,000 before installation costs. This causes a dangerous situation since the drivers side headlight points to the ground and it is hard to see in front of you at night.

• 09/15/2021· ENGINE

  After getting it serviced for airbag issue at the blasius chevrolet dealership in waterbury, ct. A week later, the car was was shaking while driving back home for work, the ESC message came up, forward collision came up, and traction control message also came up. Dropped it off at the dealership and said it was bad gas. Two days later, I was told that the misfire is caused by the lifter and pushrod was broken and that another 2021 suburban came in with the same issue but was suggesting it was our fault. There has been alot issues L84 engine that the misfire is due to a collapse lifter with less than 20K miles.

• 09/14/2021· ELECTRICAL SYSTEM,ENGINE

  We have had several incidents of issues with the engine and electrical system. There are as follows: - NO CHECK ENGINE LIGHTS and engine failed. - Engine continues to be sluggish and hesitant. Headlights do not come on when in "auto" and it is dark outside. - Doors lock with the keys inside and the engine is off. - Keys are showing in sleep mode or not present when they are present. The engine went down on May 6, 2021 and I was on the highway with 2 of my children. I could not accelerate. There was traffic and could not keep up. I was able to get the truck to the delearship to have inspected and repair attempted. NO check engine lights.

• 09/13/2022· SERVICE BRAKES,FORWARD COLLISION AVOIDANCECrash

  In traffic, approx. 10-15 MPH car in front stopped short. I put foot on the brake pedal and pushed the brakes pedal to the floor. The car did apply the brakes equally as hard as I was Appling brakes at the pedal

• 09/11/2025· ENGINE

  While driving along on a city street, the check engine light came on. Once I turned onto the highway, there was a pop from the engine, and the vehicle started missing and vibrating. I turned around and drove the vehicle back home. A mechanic looked at it and said there were a lot of problems and recalls on these vehicles for misfiring. He said the problem is the lifters and they need to be replaced as soon as possible. He encouraged me not to drive it due to it may cause more damage.

• 09/08/2021· POWER TRAIN

  Transmission leaked oil and the suv didn’t advice the loss of fluid. Still under repair

• 09/04/2025· ENGINE,FUEL/PROPULSION SYSTEM

  Engine light comes on and now flashes. The service traction control and esc comes on. The whole vehicle shakes when idling. Certified GM dealer hooked it up and it says misfiring cylinder 6. All spark plugs replaced, new GM coil, new spark plug wires. Nothing has fixed it yet.

• 09/02/2026· POWER TRAIN

  The transmission shutter and hesitates while downshifting.

• 09/02/2025· ENGINE,FORWARD COLLISION AVOIDANCE

  I was driving when I received messages saying service ESC, Forward collision System Unavailable, & Service Traction Control. The vehicle began to shake hard when I applied brakes, had loss of power when pressing the gas pedal, and sounded like metal grinding. All of this put my children & I at risk as we were on interstate 35 with cars flying past us and I’m losing power. Initially the spark plugs and coil was were changed to no repair. It was towed to a dealership where they confirmed the lifter & cam failed which put metal in the oil. My only option is a full engine replacement costing 20k on a vehicle that’s 4yrs old. It’s not ok that I have to spend that in order to get my 70k car drivable. Im now without a car, still paying a car note, unable to get my kids places, and having to get help from friends all bc GM can’t build a quality vehicle. I also haven’t been able to get a loaner car. This isn’t happening in only the 6.3L. This is a widely known issue with the 5.3L as well. *There were ZERO warning signs that something was wrong. Drive just fine that morning*

• 09/01/2026· ENGINE

  This vehicle has been towed approximately 7 times in the last year. For all instances in [XXX] in 2025, the dealership told us there were no issues. The completed the recall on the L87 and it 'passed'. The dealership then updated the oil to 40W and sent us on our way. We continued to have issues, but it was deemed to be the transmission. We had that relaced earlier this year. On XXX the car shut off again while driving on a highway. Upon this dealership taking a look at it, they have determined the engine has locked up for reasons under the L87 recall. I wanted to note this with the NHTSA as the recall was completed, but later found that it was not actually corrected through their guidance within the recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 09/01/2021· POWER TRAIN

  The lifter rods failed on my vehicle that has approximately 8,000 miles on it. The dealer said that this is a known issue and that there is a service bulletin out for it.

• 08/31/2025· FUEL/PROPULSION SYSTEM

  Driving vehicle on a highway at 55mph, tried to speed up, no propulsion. Fuel injector went bad.

• 08/31/2023· STEERING,VEHICLE SPEED CONTROL,SERVICE BRAKES

  The computer component surged, and the vehicle is available for inspection. The vehicle brake function is lost. Stepping on the brake paddle did not apply brake. Brake function was disabled by the computer. I took the vehicle to dealer, they said it was a component that has high resistance that cause it. But not sure why it has high resistance at that time and the resistance is gone after driver restarted the vehicle. No one else inspected the component beside the dealership. There was no warning at all and this is the first time it happens. Driver was just driving normally and suddenly all the light in the instructment panel started blinking and driver tried to apply brake but nothing happen. Luckly it wasn't rush hour, and driver was able to let the vehicle roll to the freeway exit on ram and use the up ram to slow the vehicle until it almost stop and changed gear to Park to stop the vehicle. Driver then restarted the vehicle and the problem is gone.

• 08/29/2026· ENGINE

  Another 6.2 Liter Engine Failure in a 2021 Chevrolet Suburban that is not included in the original Recall affecting 2021 Suburbans Starting March of 2021 this on was purchased in Dec. of 2020.