SUV, gasoline, 4WD/4-Wheel Drive/4x4, built in United States. Owner complaints on file from Feb 6, 2020 to Aug 27, 2026.
Owner complaints about this model year, by the year they were filed with NHTSA.
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 26V-289 | May 7, 2026 | Component missing from the drivetrain transfer case may cause the front and/or rear wheels to lock up without warning to the driverDo not drive | Powertrain | 66 | Part replacement |
| 21V-115 | Feb 25, 2021 | Affected tires were cured for too long during production | Tires | 33,838 | Part replacement |
| 19V-837 | Nov 21, 2019 | Fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system | Fuel system | 502 | Part replacement |
| 19V-761 | Oct 24, 2019 | If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control… | Stability and traction control | 652,967 | Software update |
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
44 complaints on file, page 1 of 3.
In 2025, one if the pistons misfired. It was repaired and the same issue occurred a year later causing the cam shaft to break as well. Not to mention we had an electrical failure where the dashboard didn’t work and the water pump failed right after it was in for the first piston misfiring. It was repaired at Ciocca Chevrolet in [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint 11760183Engine had a catastrophic failure and completely shut off while driving down the highway. The engine has completely seized and requires replacement. The vehicle was towed to an independent service shop and the technician diagnosed that the engine needed to be replaced.
NHTSA complaint 11759329There is a safety recall on GM’s 6.2L V8 L87 engine model years 2021-2024. My vehicle is a 2020 Suburban with a 6.2L V8 L87 engine. My engine recently experienced the same failure as cited in the recall, but because it is outside the 2021-2024 window it is not covered by this recall. I ask that the recall be expanded to additional years where these engines are experiencing the same failure as is covered by the current recall.
NHTSA complaint 11754702Transmission fail Drives fine then stops accelerating
NHTSA complaint 11754536I just received an email with this the following: NHTSA Recall ID Number :26V289, warning about front or rear wheel lockup. Per the NTHSA website, there is no recall. The email came from: NHTSA-ODI-Consumer-Communication@service.govdelivery.com
NHTSA complaint 11737501The contact owns a 2020 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the vehicle stalled. A passerby helped the contact to push the vehicle into a parking lot. There was no warning light illuminated. The contact left the vehicle in the parking lot. The following day, the vehicle restarted as intended. The contact stated that on a separate occasion, the vehicle failed to start. The Push to Start button occasionally became stuck, and the contact continuously pressed the button to release it. The vehicle was towed to the dealer, but no cause for the failure was found. The vehicle was taken back to the residence, and upon exiting the vehicle, the contact noticed loose cables. The contact's husband plugged the cables back into place. The failure persisted, and the vehicle remained at the residence unrepaired. The contact had not driven the vehicle due to safety concerns. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.
NHTSA complaint 11723053Driving on interstate and gradual onset of clicking/knocking. Within 5 minutes complete loss of propulsion and throttle. RPM went to zero. Oil pressure/temperature/engine lights all fine. Dealership states "catastrophic engine failure." My family was in the vehicle. Fortunately still had power steering and brakes and able to guide vehicle to shoulder.
NHTSA complaint 11710298The contact owns a 2020 Chevrolet Suburban. The contact stated that the vehicle experienced electrical failures that caused several safety and powered components to turn off and on. The contact stated that the vehicle occasionally lost power steering or windshield wiper functionality and would start functioning without having been engaged manually. The contact stated that the instrument cluster occasionally went black. The contact took the vehicle to a local dealer, who diagnosed the vehicle and advised the contact of Technical Service Bulletin: 18-NA-161, which addressed the electrical failure. The vehicle was repaired. The manufacturer was not informed of the failure. The contact stated that the electrical failure described in TSB: 18-NA-161 should have been a national recall due to the safety factors of the systems affected. The failure mileage was approximately 85,000.
NHTSA complaint 11709472I hadn’t had my car a year and my solenoid in my transmission is in need of replacement. The suv will not pick up speed above 40
NHTSA complaint 11709025Transmission is not functioning properly at 74,300 miles. Engine kept slipping while driving uphill and the RPMs were not matching vehicle speed. Could not go above 50mph while merging onto freeway which was very dangerous. Whirring noise occurred every time I accelerated which was also noted By dealer and transmission shop. No check engine lights on. Took to dealer, but the misdiagnosed it since no lights were on. Took to Transmission shop, and they found that the transmission had several issues that were not displayed. Besides the shop running specific tests, there are still no warning lamps or messages displayed on the vehicle dashboard or using an OBD2 sensor.
NHTSA complaint 11704286The contact owns a 2020 Chevrolet Suburban. The contact stated while driving 25 MPH and depressing the accelerator pedal, the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was then taken to the dealer, where it was diagnosed and determined that the camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The approximate failure mileage was 95,000.
NHTSA complaint 11701556Our engine went at 100,800 miles, costing us $15k in June 2025. Then our transmission went 3 months later, now costing us another $7k. GM is offering very little financial assistance. It's quite inconvenient that these major mechanical issues occur right after factory warranty. It is at a dealer getting fixed, again, but how can this be ok with GM to see their product be such a failure for consumers? Recall or not, this has left a horrible taste in our mouth for GM/Chevy vehicles. We will no longer trust the longevity of their vehicles and will educate others to be weary on purchasing vehicles. We can understand mechanical failures over time, but not to this extent, and we're very disappointed in the customer service and available assistance for someone that just spent nearly $23k on a vehicle that's less than 5 years old.
NHTSA complaint 11698085The transmission is not shifting appropriately from 2nd to 3rd 3rd to 4th. There is a huge whining noise when it reaches the end before shifts. There is known issues in the 2020 suburban and this vehicle was never recalled for similar issues.
NHTSA complaint 11696536Driving through residential area and noticed loud noise from under hood. Went to pull out onto state highway and wasn’t able to get up to speed almost causing an accident because I could not accelerate. Had to maintain speed at or below 40mph. Brought vehicle to dealership and they confirmed that the transmission was shot. Also went to a local transmission repair shop and he stated that he sees 1-2 of this same transmission weekly. That 2016-2020 Chevrolet transmissions are no good and that Chevrolet knows this. This is a $7000 repair on a vehicle that just hit 100,000 miles. Vehicle has always been well maintained. Just wondering how GM doesn’t have a recall on this particular transmission if there are so many reported problems with it. I was fortunate to be able to pull off of the highway and take back roads to get to the dealership. There was no slipping, no warning signs whatsoever. It just made the loud noise and then boom. Done.
NHTSA complaint 11693940SEVERE TRANSMISSION SHUDDER. LAST MONTH HAD TAKEN MY 2020 CHEVROLET SUBURBAN TO THE WEST CHEVROLET DEALER LOCATED IN ALCOA, TENNESSEE. I WAS ADVISED BY A TECH THAT THE VEHICLE NEEDED A NEW TORQUE CONVERTER. I PAID 2,200.00 FOR THIS REPAIR. THIS REPAIRS DID NOT FIX THE ISSUE. AFTER PAYING MY BILL AND DRIVING THROUGH THE PARKING LOT, IT STARTED BACK IMMEDIATELY. THE TECHNICIAN ADVISED THEIR WAS NOTHING ELSE THEY COULD DO AFTER EXPRESSING HOW BIG OF A SAFETY CONCERN IT. SO I ATTEMPTED TO DRIVE IT HOME. AS I ENTEREDED INTO A BUSY 4 LANE HIGHWAY (ALCOA HIGHWAY) THE VEHICLE WOULD MOVE AND BEGAN SHUDDER VERY BAD, ALMOST CAUSING A CRASH. AFTER DOING LOTS OF RESEARCH, IT APPEARS I AM NOT THE ONLY ONE HAVING THIS ISSUE. I HAVE ALSO REACHED OUT TO SEVERAL NEWS MEADIA OUTLETS TO ASSURE THIS IS ADDRESSED TO PREVENT BY FAMILY GETTING HURT AND/OR KILLED DUE TO THE FAILURE OF THE 6L80 TRANSMISSION PROBLEMS. PLEASE TAKE INTO CONSIDERATIONS OF THE SERIOUNESS OF THIS ISSUE. THE VEHICLE NEEDS A NEW TRANSMISSION THAT I CAN NOT AFFORD. THE VEHICLE HAS NO CODES/WARNING DISPLAYED ON THE DASH WHICH PUTS MY FAMNILT AND I AT RISK WHEN DRIVING.
NHTSA complaint 11681887Odometer Fraud. The contact purchased a 2020 Chevrolet Suburban. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 88,000 and at the time of registration, it was discovered that the mileage was 252,000.
NHTSA complaint 11681266The vehicle is stuttering, intermittent, jumping, miss firing during acceleration, and hard down shifting. The check engine and forward collision unavailable light flashed as the vehicle struggled to accelerate. According to Chevrolet the camshaft and two lifter has failed.
NHTSA complaint 11680019Had to replace motor. Had to replace the vibrater in the seat. Had to replace transmission. Electric shorted
NHTSA complaint 11670111The vehicle has 70,000 miles. The engine has failed and been replaced two times. We are on the third engine. The first time was in 2021 the second time was in 2024. I heard that others are having a similar issue. This is a 2020 .6.2L RST. The engine failed the first time while driving at high speed the car just stopped working. The second time we heard it failing and were able to drive it to the dealer where the engine fell apart in the parking lot The vehicle has had other issues too. Currently the wire harness has failed. This has happened several times but the dealer has not figured out a repair. Each time it’s failed while driving causing power steering to fail while driving. I don’t not trust my teen drivers around the vehicle or to drive.
NHTSA complaint 11668498The technical service bulletin for the Service Safety Restraint System is for models 2021-2023. I have a 2020 Service Safety Restraint System error code this is appearing intermittently. Turning off and on. It's almost like a short somewhere. We are taking it in for servicing but I feel that the service bulletin should include the 2020 model as well.
NHTSA complaint 11661801Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.