2020 Chevrolet Silverado 2500 Owner Complaints

The 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 ID

11755940

Incident

Jul 1, 2025

Mileage

126,000 mi

Tire 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 ID

11754338

Incident

Aug 2, 2026

I 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 ID

11746570

Incident

Jun 25, 2026

2020 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 ID

11737820

Incident

Apr 5, 2026

my 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 ID

11729039

Incident

Apr 2, 2026

My 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 ID

11724272

Incident

Mar 6, 2026

This 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 ID

11723754

Incident

Mar 11, 2026

The 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 ID

11723286

Incident

Feb 17, 2026

Mileage

99,600 mi

THREE 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 ID

11718576

Incident

Feb 3, 2026

The 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 ID

11718543

Incident

Jul 29, 2025

Mileage

50,616 mi

Pulling 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 ID

11718211

Incident

Feb 11, 2026

The 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 ID

11717625

Incident

Feb 11, 2026

Mileage

173,794 mi

On 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 ID

11717543

Incident

Jan 24, 2026

The engine block heater in my truck keeps tripping the circuit breaker. Dealership says it that 'it appears that the block heater cord is shorted recommend replacing cord' estimate $500. I understand that Chevy has recalled some trucks from this year for this very problem however it and they don't include my truck. This is a fire safety hazard!!! The company admits it is a safety issue. Why isn't my truck on the list? Here is the article I found on it. 2020 silverado engine block heater cord recall +5 General Motors has issued recalls affecting 2019–2020 Chevrolet Silverado 1500 and various heavy-duty models (4500HD-6500HD) due to a fire risk from the engine block heater cord . The cord can short circuit, potentially causing a fire in the engine compartment. Owners are advised to park trucks outdoors and away from structures until the free dealer repair is completed. Key Details Regarding 2020 Silverado Recalls: Affected Vehicles: Specific 2019-2020 Chevrolet Silverado 1500, GMC Sierra 1500, and 2019-2023 4500HD, 5500HD, and 6500HD trucks. The Issue: The engine block heater cord or its terminals can short-circuit, causing a fire risk. Symptoms: Potential for smoke, a burning smell, poor heater performance, or tripped circuit breakers. Action Required: Dealers will inspect and potentially disable or replace the block heater cord. Safety Recommendation: Do not plug in the engine block heater until the recall repair has been performed. It is recommended to check the NHTSA recall website with your VIN for the most up-to-date information on your specific vehicle. GM recalls 40,000 pickups over fire risk - FOX 5 San Diego Apr 24, 2023 — This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (WJW... [XXX] Part 573 Safety Recall Report 21V-496 - nhtsa Mar 4, 2022 — Description of Defect : ... In vehicles equipped with the Duramax dies INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION

NHTSA ID

11714558

Incident

Jan 27, 2026

10L1000 transmission, began having problems with delays and harsh gear engagement. Flare shifting and shuddering. Finally starting having transmission overheating issues while towing. I had to make several unsafe stops with a trailer to wait for the transmission to cool down again before continuing to get it home. Saw trans temps up to 240°F on flat land with 40° outside temps. I could smell the hot transmission fluid inside the truck. When I went to check the fluid level of the transmission, the fluid was full but had a large amount of glitter like metallic flakes. The fluid was very dark brown in color and smelled terribly burnt. The last recall I took in to the dealer for was about the transmissions possibility of failing, locking up, along with the rear wheels at any speed. I have young children that ride in this truck, that in it self was unsettling and unsafe. But then to have issues with absolutely no warning light was concerning. Ive since ordered an aftermarket built transmission to avoid repeating the same issues with a factory GM replacement. My factory warranty had also ended a few months prior to having these problems with it. Leaving me to completely foot the bill for it to be replaced. I had to pull money from my retirement early to cover costs, in fact costing me much more than just the sticker price.

NHTSA ID

11714398

Incident

Nov 1, 2025

La transmicion viajaba aproximadamente a 70 millas cuando empeso a regresar los cambios rapidamente adta quedar parado en la carretera sin movimiento apague y volvi a encensenderla y trabajo una ves mas pero asiendo cambios bruscos Aora el dealer no quiso atender el recall disen que se tiene que remplazar la transmicion completa

NHTSA ID

11713992

Incident

Dec 23, 2025

I am filing a safety and health complaint regarding a known rear window water intrusion defect on my 2020 Chevrolet Silverado 2500 with approximately 56,000 miles. Despite the severity of the issue, the dealership has refused to provide a permanent repair. This defect is widely documented and has resulted in a recall in Canada, yet no recall exists in the United States—despite significantly more of these vehicles being sold here. The inconsistency in recall coverage is deeply concerning. My vehicle experiences substantial water intrusion that has saturated the rear headliner, rear seat area, and carpeting. This creates a serious health concern, particularly for rear-seat passengers, including children. Prolonged moisture intrusion creates a high likelihood of mold growth beneath interior components, which General Motors has failed to address. There is also a serious safety risk. The rear sliding window heater module is mounted directly to the rear window. It is well known that when this module is exposed to moisture from the leak, it can cause the rear window to shatter or explode. The dealership has acknowledged this risk. A rear window shattering while occupants are in the vehicle could result in serious injury. When covered under bumper-to-bumper warranty, the dealership’s only solution is a “reseal” of the rear window. This is not a permanent repair, and many owners report repeated failures after resealing. This issue is easily verified through widespread consumer complaints. These trucks are expensive vehicles, and owners should not be forced to accept temporary fixes for a defect that presents clear health and safety risks. I respectfully request that NHTSA investigate this issue and take appropriate action.

NHTSA ID

11707083

Incident

Nov 1, 2025

The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the rear wheels locked up momentarily. The check engine warning light was illuminated. The vehicle was previously taken to the local dealer to be repaired under NHTSA Campaign Number: 24V797000 (Power Train). The vehicle was repaired, but the failure recurred. The manufacturer was contacted, who confirmed that the recall repair was a one-time free repair, and no further assistance was provided. The failure mileage was approximately 188,000.

NHTSA ID

11698606

Incident

Jan 1, 2025

Mileage

188,000 mi

Intermittent steering catches

NHTSA ID

11694262

Incident

Oct 18, 2025

I just financing this car and dealer write on dmv price of $57,057 with 63,631 miles that the tell me that was a pre contract on 9/13/24 then they then the bring the truck on 9/15/2025 with 64156 miles at the price of 61,777 on the contract i dont know what to do

NHTSA ID

11689158

Incident

Sep 15, 2025

While driving home I noticed a vibration in the steering wheel. Once I got home I looked over the tires because I had one start to come apart a month ago so I was worried another one was doing the same thing, and I was correct. The tire has roughly 12k miles on it

NHTSA ID

11687117

Incident

Sep 10, 2025

As I was driving I got a really bad vibration once I pulled over to check it out I discovered the tire was separating . The tires had about 10,000 miles on them. I have another tire that just recently did the same thing I will also be reporting

NHTSA ID

11687115

Incident

Jul 31, 2025

The rear camera goes out when backing up. This causes a safety hazard due to not being able to see.

NHTSA ID

11686180

Incident

Sep 9, 2025

Transmission valve body issue

NHTSA ID

11685296

Incident

Aug 29, 2025

I am writing to express my serious concern and frustration regarding the unresolved recall on my 2020 Chevrolet Silverado 2500 (VIN: [XXX] ). Despite multiple visits to multiple dealerships, I was repeatedly told that the necessary parts to complete the recall repair were on back order and instructed to “wait for parts.” No interim solution or assistance was ever offered. As a result of this delay, my vehicle broke down without warning, leaving me stranded on the side of the road. This created a hazardous situation and significant disruption to my day. To make matters worse, I had to pay out of pocket to have the truck towed to a repair shop in an effort to get it operational—an expense I should never have incurred given the known recall and repeated attempts to have the issue corrected by Chevrolet. I have been a loyal Chevrolet owner and have always trusted the brand for its quality and dependability. However, this delay and lack of proactive support is causing significant inconvenience and eroding that trust. This situation is unacceptable for several reasons: 1.Safety Risk and Recall Obligation: Chevrolet acknowledged the defect by issuing a recall, yet I have been forced to operate a vehicle that does not meet your own safety standards for months. 2.Repeated Service Attempts with No Resolution: I followed the proper process and visited an authorized dealer multiple times, only to be turned away each time with no solution beyond “wait for parts.” 3.Breakdown and Financial Loss: The vehicle failure and subsequent towing expense are a direct consequence of Chevrolet’s inability to provide timely parts or alternative accommodations. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11684509

Incident

Sep 2, 2025