Pickup, diesel, 4WD/4-Wheel Drive/4x4, built in United States. Owner complaints on file from Mar 18, 2020 to Sep 21, 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-083 | Feb 12, 2026 | Transmission control valve may fail and cause the rear wheels to lock up | Powertrain | 1,055 | Software update |
| 24V-797 | Oct 24, 2024 | Transmission control valve may fail and cause the rear wheels to lock-up | Powertrain | 463,295 | Software update |
| 24V-060 | Feb 1, 2024 | Tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently unlatching… | Latches and locks | 570,434 | Part replacement |
| 21V-578 | Jul 29, 2021 | Operating the spare tire with other 20" or 18" tires can prevent the Anti-Lock Braking System (ABS) from engaging | Tires | 86 | Repair or modification |
| 20V-792 | Dec 17, 2020 | Seat belt brackets may not be secured to the seat frame in the front-row center seating position | Seat belts | 624,216 | Inspection |
| 20V-650 | Oct 22, 2020 | One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving | Powertrain | 42 | Part replacement |
| 20V-446 | Jul 30, 2020 | Diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the… | Airbags | 769 | Part replacement |
| 20V-324 | Jun 4, 2020 | Some of the vehicles in 20V-324 were not part of Recall 20V-142 but received defect parts during another service (typically during collision repair) | Latches and locks | 272 | Part replacement |
| 20V-142 | Mar 12, 2020 | Hood-latch striker wires may not have been heat-treated properly, possibly causing them to fracture | Latches and locks | 1,909 | Part replacement |
| 19V-814 | Nov 14, 2019 | When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet | Seat belts | 556,399 | Not stated |
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.
108 complaints on file, page 1 of 6.
While driving on the highway our transmission cooling line completely separated at rubber hose to metal line crimp. This cause transmission fluid to burst out all over the vehicle including the windshield and trailer. Vehicle immediately stopped pulling and we barely were able to get to the side of the road. This also caused a catastrophic transmission failure costing approximately $10,000 to repair. GM covered some of the transmission cost but still left us with $5000 bill for a transmission line defect on a vehicle under 100,000 miles. This created a unsafe condition with the trans fluid on the windshield and immediate loss of drive. All maintenance was performed per manufacturers specifications and no warning signs/lights/leaks provided prior to the failure. I do have pictures of the failed transmission cooling line.
NHTSA complaint 11765810The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving 20 MPH and depressing the brake pedal, the vehicle was making a squealing noise. The failure was a recurring failure. The contact associated the failure with Technical Service Bulletin: 20-NA-020. The dealer was contacted and replaced the brake pads to fix the vehicle; however, the failure persisted. The manufacturer was contacted by phone and was made aware of the failure. The failure mileage was approximately 12,000.
NHTSA complaint 11764984The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that the transmission shuddered and hesitated while driving 55 MPH or at higher speed. The vehicle was taken to the dealer; however, the dealer was no longer in business. While driving at various speeds, the lifters were squeaking. The vehicle was taken to a dealer and was diagnosed with lifters failure. The contact decided not to repair the vehicle. The manufacturer was informed of the failure. The failure mileage was approximately 170,000.
NHTSA complaint 11764917My vehicle was taken to Legacy Chevrolet of Waxahachie where a routine recall notice was addressed. During the process they technician broke my battery terminal. Upon my discovery the dealership claimed the broken terminal must have just broke on its own during the time it was at their dealership in spite of the ECM module update requiring the technician to specifically remove the battery cable from that specific terminal. Legacy has refused to address this issue and charged me for the new batteries as well as for the tow that was required. The damage was caused by their technician and all of the costs incurred should have been absorbed by the dealership.
NHTSA complaint 117643692 of the 4 Balance weights from Front Axle Propeller Shaft have become detached from their welds. Found on chassis during routine maintenance and visual inspection. Truck was just outside window of recall N202314870, Contacted GM Customer care to confirm no recall work was preformed and vehicle is outside of window of the referenced recall. Vehicle scheduled for evaluation/repair by GM Dealer 9/14/26 approx. 84000miles
NHTSA complaint 11763038The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the transmission was slipping and shifting hard. The contact associated the failure with NHTSA Campaign Number: 26V083000 (Power Train); however, the VIN was not included. The dealer was notified of the failure, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.
NHTSA complaint 11760255The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the tailgate independently opened. The contact associated the failure with NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages); however, the VIN was not included in the recall. The dealer was contacted, but the vehicle was not diagnosed or repaired because the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was approximately 118,000.
NHTSA complaint 11759931The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at undisclosed speeds and towing a trailer, the message "Trailer Brake Disconnected" was displayed with an audible chime. The vehicle was inspected by the dealer, but no fault was found with the vehicle. Upon investigation, the contact discovered Service Update Program: N232414840; and associated the failure with the service update. The dealer and the manufacturer confirmed that the vehicle was not included in the program. The vehicle was not repaired. The failure mileage was approximately 126,000.
NHTSA complaint 11755940Tire size 275 65 R20 entire tread came completely off the tire & caused damage to my fender & fender well. This tire had approximately 29,830 miles on it. It was 1 of the original tires from the factory on this truck.
NHTSA complaint 11754338I got to my destination and got out of the truck and like a hour later I came back to my truck to get in and my truck was full of smoke and stunk and my center console and center dash melted and gone . Nothing would work . That’s all I know
NHTSA complaint 117465702020 3.0 diesel duramax sucked in the antifreeze and caused a hydrolock. The dealer says that it is not covered under warranty since the engine was over 100k miles. They did offer a new engine for $30K which I declined. The truck was always well taken care of and only received the best in all products
NHTSA complaint 11737820my 2020 Chevrolet Silverado has locked up a couple times on 4/2/26 i immediately drove to the robins chevy dealership, the service writer and i discussed the recall of the transmission, the next day i was sent a estimate of 6800.00 dollars to replace the valve body of the transmission, i asked why am i responsible for the replacement cost due to a known recall of the transmission valve body? i was instructed to call gm directly which i did and no action was taken, i was told to speak to the dealership manager. i need help with this matter.
NHTSA complaint 11729039My dash has been displaying intermittently “Service electric trailer brakes”. I have recently purchased a 30’ travel trailer. After driving a couple hundred miles with trailer in tow. The code started appearing even with the trailer not connected. I have contacted GM and they have indicated no recall on electric brake controller.
NHTSA complaint 11724272This vehicle does not recognize that the gear is on park. Due to the issue, it has left me stranded twice. The first time it was at a very remote area up in the mountains. I was stuck for hours due to battery dying. The second time being a very dangerous situation Because it was a very dangerous area late at night.
NHTSA complaint 11723754The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the tailgate opened unexpectedly and was crushed by an attached trailer. The vehicle was taken to a dealer, where it was diagnosed and associated with NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 99,600.
NHTSA complaint 11723286THREE WEEKS I NOTICED THE HEADLINER ABOVE THE REAR WINDOW WAS WET. THE REAR WINDOW HAS SOME CRACKS ON THE TOP PLASTIC MOLDING THAT HOLDS THE WINDOW TO THE CAB OF THE TRUCK. THIS MOLDING IS IN BETWEEN THE HEADLINER AND THE REAR GLASS.
NHTSA complaint 11718576The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving approximately 45 MPH, the check engine warning light illuminated. The vehicle was taken to the residence. The vehicle was then taken to a dealer, and DTC: P133X (Cylinder X Glow Plug Failure) was retrieved. The contact was informed that the Glow Plug needed to be replaced and reprogrammed. The vehicle was repaired, but the failure reoccurred with a different Glow Plug five months later. The vehicle was taken to a dealer to be diagnosed, and it was determinedthat Glow Plug #3 had failed, and DTC: P0673, P0607, and P133A were retrieved. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 50,616.
NHTSA complaint 11718543Pulling out onto road, heard a bang, no forward or backward, unable to move vehicle, brought to repair shop, says output shaft is sheared off, 68000 miles on it, looked on line, apparently common defect, my son in laws friend just had his happen getting off ramp exit, 80000 miles, I’ve read where low as 20000 miles, as well as 59000, 33000 ridiculous crap made in USA…. Please help! No repair as of yet.
NHTSA complaint 11718211The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at 50 MPH, the vehicle went into LIMP Mode. The check engine warning light illuminated, and the messages "Service Emission System”, “See Owner's Manual", and "65 MPH Max Speed" were displayed on the instrument panel. The vehicle was taken to the dealer, where it was diagnosed, and determined that the diesel exhaust fluid gas tank connector terminal had overheated, and the gas tank and the wiring harness needed to be replaced. The vehicle was not repaired due to the cost. The vehicle remained at the dealer. The contact associated the failure to the Global Warranty Management: N212342980. The manufacturer was not notified of the failure. The failure mileage was 173,794.
NHTSA complaint 11717625On approximately January 24, 2026 my 2020 Chevrolet Silverado 2500HD equipped with the 6.6 Duramax Diesel displayed an error code (P20B9). This error code was found to be related to the diesel exhaust fluid system specifically relating to "Reductant Heater A Control Circuit/Open." On January 27, 2026, the vehicle was diagnosed at Chevrolet dealership and the following was reported "Diesel Emissions Fluid Tank Remove and Replace - P20B9 SET FOR REDUCTANT HEATER CIRCUIT...COMMANDED ON AND ZERO AMPS..CIRCUITFAILURE... DISCONNECT PUMP MODULE AND BURNED/OVERHEATED TERMINALS..PUMP MODULE AND HARNESS PART OF TANK ASSEMBLY... LABOR TIME ADDED TO PERFORM MALFUNCTION/TAMPER TEST TO CLEAR EMISSIONS MESSAGE...." I found the "burned/overheated terminals" comment to be alarming. I looked into this matter further and found a GM Service Bulletin (21-NA-006) from October 2022. This bulletin identified this issue which contained an image showing burned/overheated terminals. The identified cause within the bulletin states "This condition may be caused by a poor connection at the Emission Reduction Fluid Tank electrical connector." I believe this should upgraded to a safety recall due the the potential of this terminal connection catching fire which could be detrimental for the operator, passengers, property, and the public.
NHTSA complaint 11717543Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.