2020 Chevrolet Silverado 1500

The Electronic Parking Brake System on my 2020 Chevy Silverado 1500 continuously malfunctions. Chevy/ GM Customer Support has been made aware of this issue and continues to disregard it entirely. The Electronic Parking Brake, which is an automatic function that cannot be turned off or bypassed, fails to fully disengage when the vehicle is taken out of Park. The Electronic Parking Brake remains very slightly engaged, producing a slight noise while driving and causing excessively premature wear on the vehicles pads and rotors. My vehicle has about 64,000 miles on it, and I have had to replace my rear brakes twice now already, due to this issue. The majority of those 64,000 miles are from uninterrupted highway driving. Each time the rear brakes were replaced, I had the dealership inspect the braking system. The dealership was not able to definitively confirm for some reason but was able to speculate that the aforementioned is likely what is going on. I find that any malfunction of such a critical part of the vehicle and the safety of it's operators and passengers poses a major safety risk.

Reported

Jul 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

Key will not fully turn back and release, keeping the accessories running. After many start, shift, move a little and waiting for a period of time it eventually turns to normal to remove. I’ve seen articles on if it says “shift to park” on the dash lights and it does not. Bought used with 70,000 10/24 and continues to get worse.

Reported

Jul 2026

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

While driving my transmission has a shutter. The shutter started about yr and half ago and I have just maintained with shutter stop. I know there is a recall on manufactured parts for other Chevrolet trucks in the same yr

Reported

Jul 2026

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

Dear Sir or Madam, I am submitting this complaint to request that the Federal Trade Commission investigate General Motors (Chevrolet) regarding what appears to be a known engine defect affecting the 2020 Chevrolet Silverado and the company's handling of this issue. I own a 2020 Chevrolet Silverado. In September 2025, when my truck had only 45,494 miles, I experienced an engine misfire consistent with a defect that has been widely reported by other owners. Through my research, I discovered that General Motors was aware of this issue and, rather than correcting the underlying mechanical defect, reportedly issued a Technical Service Bulletin (TSB) instructing dealerships to reprogram the Engine Control Module (ECM) to reduce or mask the symptoms instead of permanently repairing the root cause. Now, less than one year later, my truck is experiencing the same engine problems again. Although my vehicle has relatively low mileage, it is no longer covered under the factory warranty because of its age rather than its mileage. When I contacted Chevrolet Customer Assistance, I was advised to work with my local dealership to determine whether I might qualify for a "goodwill" repair. I do not believe it is fair for consumers to rely on discretionary goodwill assistance when the manufacturer was allegedly aware of a design defect before or during the time these vehicles were sold. Based on my research, properly repairing the underlying cause of this engine failure can cost as much as $15,000. Consumers should not be expected to bear the financial burden of repairing a defect that the manufacturer allegedly knew existed but failed to adequately correct. I respectfully request that the FTC investigate whether General Motors engaged in unfair or deceptive business practices by: Continuing to market and sell vehicles with a known engine defect. Addressing customer complaints with software reprogramming rather than permanently correcting the underlying mechanical issue. Failing

Reported

Jul 2026

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

While driving my 2020 Chevrolet Silverado 1500 equipped with the 5.3L V8 engine and Dynamic Fuel Management (DFM), the engine developed an internal valvetrain failure resulting in misfires, rough running, and reduced engine performance. The vehicle was diagnosed by a Chevrolet dealership as having failed lifters associated with the DFM system, requiring major engine repairs and replacement of internal engine components. The failure occurred at approximately 81,000 miles and resulted in the vehicle entering a reduced performance condition, creating a potential safety concern when merging, accelerating, or operating in traffic due to the inability to maintain normal vehicle speed and power. The vehicle was inspected and repaired by an authorized Chevrolet dealer. Research shows numerous similar reports from owners of GM 5.3L and 6.2L engines equipped with Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems involving lifter and valvetrain failures.

Reported

Jul 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at approximately 40 MPH, the vehicle shuddered and downshifted independently. No warning lights illuminated. Additionally, an OBD2 diagnostic scan retrieved diagnostic trouble codes: U0146, U0101, and U0100. A local dealer was contacted; however, the vehicle was not diagnosed or repaired because the VIN was not included in any recall. Additionally, the contact related the failure to NHTSA Campaign Number: 24V797000 (Power Train). The manufacturer was not made aware of the failure. The failure mileage was approximately 84,000.

Reported

Jul 2026

Incident date

Jul 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving at 35 MPH, the engine started knocking, and the sound grew louder while making a turn. The Electronic Stability Control and check engine warning lights illuminated. The vehicle was taken to a local dealer, where one diagnostic trouble code was displayed, but the vehicle was not repaired. The vehicle was then taken to a second local dealer, who retrieved a code for fuel injector number eight and diagnosed that the engine needed to be replaced; however, the vehicle was not repaired. The vehicle was taken to a third dealership, Knapp Chevrolet, where it was diagnosed that the engine needed to be replaced. The vehicle remained unrepaired. The manufacturer was contacted and opened a case, but no additional assistance was provided. The failure mileage was approximately 94,000.

Reported

Jul 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

I have a Trial Boss and it wont shut off when the key is off, KEEPS RUNNING. Did some research and it gave a couple of thing to check.

Reported

Jul 2026

Incident date

Jul 2026

Mileage

Not provided

Outcome flags

None reported

while driving pulling a trailer with my kid in the car engine began knocking and lost power. upon investigation it was a failed lifter causing bent pushrod

Reported

Jun 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

The rear camera view is skewed resulting in inaccurate reference angles of the vehicle. When used to assist in reversing results in improper placement of vehicle and can cause collision of vehicle with objects.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

I am filing this complaint regarding a major engine failure in my 2020 Chevrolet Silverado 1500 equipped with the 5.3L V8 engine. At approximately 56,000 miles, my vehicle experienced a failed valve lifter, resulting in loud engine ticking, a check engine light, loss of power, and unsafe driving conditions. The vehicle was no longer operating properly and required immediate repair. Although the vehicle had been regularly maintained and had relatively low mileage for such a significant engine issue, I was informed that the failed lifter damaged the camshaft and related engine components, requiring extensive repairs. The total cost of the repair was $6,180, which I paid out of pocket. My Silverado was just outside Chevrolet's 5-year/60,000-mile powertrain warranty period by time, despite having only 56,000 miles. A major internal engine failure should not occur on a well-maintained vehicle with such low mileage. After researching this issue, I discovered that lifter failures involving the Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems in GM's 5.3L engines have been widely reported by other Chevrolet Silverado owners. This indicates a potential design or manufacturing defect rather than normal wear and tear. I am requesting that General Motors provide reimbursement or goodwill assistance for all or a substantial portion of the $6,180 repair cost. I believe customers should not be responsible for paying thousands of dollars to repair a known issue on a low-mileage vehicle. I respectfully request that this matter be reviewed and resolved promptly.

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Engine light came on and off and June 10, 2026 The truck just stole and no power to go

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

I'm experiencing all the documented issues with the 10L80 10 speed transmission. Identical to all the recalls. It's shifting poorly, torque converter shudder, lose of power, unreliability, and serious safety concerns. I've tried to communicate and find a resolution to these issues through the dealership and GM. Of course getting nowhere. I don't feel a 60k dollar truck should be in this kind of condition. Recently the ac compressor went out. Conveniently after the 6.2 was considered faulty and was replaced but transmission denied. Which the dealership GM expressed in no way was any factors the warranty companies claims of a taller tire being on the truck. Being the issue at all for the transmission failure. Also the dealership didn't check a box. One that I can not physically check. Which they put on me. They swapped the stock tires to the taller brand new set I'd just bought for my trade in. Never stating anything about the tires being taller voiding the warranty I just paid for. Why would I deny the part of the extended warranty that I wanted. Cause of the suspension and drivetrain. Either way this truck is not safe to be on the road. It struggles to maintain speed on the highway. Eventually leading to the torque converter free spinning and making all kinds of noises and vibration. Of course once I've assisted it to violently shift through the gears and hopefully into 10th. On occasions it never makes it that far. Either way I feel this falls directly into the recalls with the same model and year. They replaced the 6.2 cause of cylinder failure and oil consumption. Well the next in line for the drive train is the junk 10 speed. Not sure how it can't be related. The long and stressful time. I've put into finding a solution with the dealer or manufacturer. They blow me off or just don't give me any info. I feel that's their way of dismissing not only the failure of the salesman not properly doing his job. Which the GManager also stated mistakes happen. Not OK

Reported

Jun 2026

Incident date

Feb 2023

Mileage

Not provided

Outcome flags

None reported

GM has a known recall and special coverage N242454441 to cover the exact same issue I experienced on my way home from work. However, I am informed my model is not included in this special coverage. The issue I experienced while attempting to turn into my apartment complex on a busy road [XXX] my rear wheels locked up mid turn no warning signs, no lamps, no messages or other symptoms were present. Almost causing me to get into an accident had traffic not stopped. I was able to shift it into park and then to drive to immediately pull off to the side into a parking lot and put my OBD reader I have P0747 solenoid 1 failed locked on. I was informed by GM that they could attempt to reprogram the transmission control model, however based on research this is not the root cause of the issue it is due to the soft aluminum bores causing the transmission module to ware and fail. I have a service appointment on 6-12-26 at 10 am at Bill Cramer GM in Panama City, FL INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

Torque converter disintegrating, metal contamination in transmission fluid.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at 25 MPH, the vehicle suddenly made knocking sounds. The Check Engine warning light illuminated. Additionally, the vehicle experienced rough idling and a decrease in motive power. The vehicle was taken to an independent mechanic, who determined the lifters had collapsed and bent the push rod. The push rod was replaced, but the newly installed part instantly bent. The mechanic informed the contact that the cam needed to be replaced. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 107,800.

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

When a trailer is connected while parked and vehicle is off, trailer lights flicker, blink and sometimes remain on. Sometimes these events will set off alarm also draining battery down.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

57,400 miles transmission shudder

Reported

Jun 2026

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while vehicle was parked, water was leaking inside the rear interior of the cab. The dealer was notified of the failure, and the vehicle was serviced but the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 38,000.

Reported

Jun 2026

Incident date

Mar 2023

Mileage

Not provided

Outcome flags

None reported

While driving my truck it started flashing all the service lights on the dash, and then started shaking bad and making a loud ratcheting noise from the transfer case/transmission and a loud knock/tick from the engine. I scanned for codes and it has all loss of communication codes for engine/transmission/transfer case/brakes/steering

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

Transmission shutter had to have torque converter replaced aug of last year and valve body may of this year replaced on the 8l90. Which has a know issue with 2015-2019 but i have the same problem those years are having

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Transmission failed before 100,000 miles. All service was complete throughout the life of the vehicle. Problems shifting to next gear causing pulling or slipping on the vehicle. If not able to accelerate properly could cause a safety concern on the road. Repairs were made costing $9,000.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

See attached document for complaint.

Reported

Jun 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of drive power with high RPM. The check engine, traction control, ABS, and parking brake warning lights were illuminated, and the message "Brake System Failure, 43 MPH Top Speed" was displayed. The contact disconnected the battery and was able to correct the failure. The failure later recurred with no warning light illuminated. The vehicle was turned off and restarted, but the failure persisted. The vehicle was towed to the dealer, but the dealer was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 55,000. The VIN was unavailable.

Reported

Jun 2026

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed, however the vehicle failed to accelrate as intended. The vehicle was taken to the dealer, howeve the failure was not duplicated. The failure reoccurred. The vehicle was taken back to the dealer where it was diagnosed with a failed wiring harness and a failed coolant oump. The contact was informed that the wirng harness and the coolant pump needed to be replaced. The vehicle was repaired. The contact stated thirteen days later the failure reoccurred. The vehicle was taken back to the dealer where it was diagnosed with a failed transmission and failed coolant pump. The contact was informed that the transmission and the coolant pumo needed to be replaced. The vehicle was repaired. The failure reoccurred three days later. The vehicle was not diagnosed or repaired by an indpendent mechanic or dealer. The failure reoccurred. The failure was persistent. The contact stated tht within a year, the vehicle was taken to the dealer for ellectrical , transmission and engine failures. The contact stated that the wiring harness, transmission and coolant pump were replaced. In addition, the coolant ump was repalced two times. The vehicle was . The manufacturer was not made aware of the failure. The failure mileage was approximately 97,000.

Reported

Jun 2026

Incident date

Jun 2023

Mileage

Not provided

Outcome flags

None reported

Component/System That Failed: The rear sliding window assembly leaked water into the cabin due to a manufacturing defect in the urethane seal and third brake light area. The window has been replaced and no longer leaks, but the water caused lasting damage to the headliner with trapped moisture. Components are available for inspection. Safety/Health Risk: The leak saturated the headliner, creating a serious risk of mold growth. My pregnant wife and unborn baby could be exposed to mold spores. Water intrusion also risks slippery floors, fogging, and potential electrical issues. Dealer Confirmation: Folsom Chevrolet confirmed the leak, replaced the window, and recommended full headliner replacement due to staining and mold risk. This is covered in GM TSB 18-NA-383. Manufacturer Awareness: GM has known about this defect for years but denied full repair (Claim #9582-9999). Symptoms: No warning lights. Leak first noticed in September 2025 after rains began. Due to dry California summer, it went unnoticed earlier, even though the defect likely started while the vehicle was still within the 3-year warranty period (mileage was over 36k when noticed). Additional Info: This is a known workmanship defect unrelated to mileage. A coworker has had the same issue twice on his 2025 Silverado. I paid 492.79 for the window 144.50 diagnostic. GM offered only 1,250 in points and refused better resolution for the 3,100 headliner repair.

Reported

Jun 2026

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado LD Crew with General Grabber RST/LT-T1. Tire Size: 255/70R17. DOT Number: A3E8hn002320. The contact stated that while spouse was driving approximately 30 mph they heard a stranger noise and noticed that rear passenger tire had split. The tire was remove and replaced with the spare the contact then stated that a week later contact's husband was driving around 50 mph and abnormal sound was heard again and that is when they noticed that the rear driver side had a blowout. Triple A was contacted and vehicle was towed to their home. The contact stated that they contacted tire manufacturer General and tire manufacturer stated that they would need to contact the dealer, dealer stated that the tires were bad and that General would not assist on replacing the tires. Contact stated tires are original tires of vehicle. Vehicle and tire failure damage was about 40,000.

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

My 2020 Chevy TrailBoss 6.2L V8 L87, same engine that has been recalled for 2021-2024 literally went dead in the middle of rush hour traffic. The engine has been deemed dead due to the exact current recall reasons. Seeing that was traffic was flowing at 45mph that was not a good scene as the vehicle " locked" itself into park originally so I was stuck in the middle of traffic. The vehicle has been confirmed seized uo by the Portsmouth NH Chevy dealer which is the Key Auto Group. Warranty adjusters representatives from a third party, not GM, will be assessing it this week. I purchased an after market warranty not by GM. I had no warning lights leading into the failure.

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Our truck started hard shifting and lurching almost a year ago, the check engine light will come on, sometimes the truck will go into safety mode, then the check engine will be off. The problem progressed and we had it diagnosed as a bad transmission control valve which we were made aware is not available to get replaced because of the ongoing recall on other vehicles in the same year range as ours, just not ours specifically. We need to get this fixed and if others are getting it fixed on recall ours should be as well. Otherwise we have a barely usable vehicle, that my husband relies on to get to work, sometimes hours from home, with no way to fix it, a year left of payments, and diminished value because of the transmission issue...that again others are getting fixed at no cost to them. Even without the recall we can't get it fixed because all available parts are going towards the recall. We deserve to have our vehicle added to this recall so we can get in line to fix it. We have been loyal customers for over 20 years to our local dealership Rydell Cheverolet. The incident date is ongoing for over a year but I will put in the most recent date where my husband was almost stranded 300 miles from home.

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Transmission is starting to shudder when maintaining 40-45 mph and will have to let off the gas or accelerate for the gear to shift.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Transmission shutters while driving at speed.

Reported

May 2026

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

I purchased this vehicle from Ghent Chevrolet in Greeley Colorado, since I have owned the vehicle I have had several transmission problems which caused the vehicle to stick in fourth gear and I have also have issues with the transmission violently shifting into first gear to the point it feels like I’ve been rear ended. I have had to replace the entire wiring harness and the water pump module as well as the thermostat module and the louvres in the front of the vehicle. I have service records for the vehicle for all the repairs and that state the amount of repairs has far exceeded the value of the vehicle and I’m currently having transmission issues again. Please help me find some sort of resolution to this situation! I have already tried to use and was rejected from the Colorado lemon law

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

I had transmission serviced 9 months ago. Transmission has always shifted hard ( like it was going to shift up to next gear , but then downshift back ) Had serviced and a transmissiom check 5/21/26 and now saying I need it replaced. Truck has 106,000 miles. I’ve heard so many reports of Chevy Silverado transmission going out right after 100,000 miles. If it’s a common problem , I feel GM should recall and repair/replace.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

I had been driving my truck for multiple days, after a knocking sound suddenly started from under the hood. It was evident at any speed that wasn't idle. There were no check engine lights displayed on the dash. The sound was annoying enough that I took it in. According to the dealer technician, the transmission pump "completely detached" and was "rolling around inside the transmission." They found metal fragments in the transmission fluid, and they declared the transmission a total loss. I have no idea how my truck was still driving, but if the transmission really had failed so catastrophically, I was driving a ticking time bomb. What if it decided to completely give out while driving my kids to school as soon as I made a left turn across traffic?

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

I was driving on I-35 in Norman, Oklahoma, shortly after 7 am, when my 2020 Chevy Trail Boss with the 6.2 engine stopped running. I was in moderate traffic and shifted the gear shifter to neutral, and the motor would not restart, leaving me in traffic. I was able to slowly get on teh shoulder to avoid a collision, and the engine would not restart. I had teh vehicle towed to Ammco in Norman, Oklahoma, where it was determined that a catastrophic engine failure occurred. This is teh same problems that are associated with recalls on the 2021 and up 6.2 GM engine. luckly i was able to get to a safe place and avoid a collision.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

The defective manufacturer lifters on my 2020 Chevrolet Silverado 1500 went on my truck damaging the lifters, camshaft, oil pump and I'm sure more than that. I know it's an ongoing investigation/lawsuit with General Motors, but they need to held accountable and should fix this issue free of charge. Not everyone has $5k-$10k+ to repair their engine due to their negligence. Thank you

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

I am writing to formally report a persistent and dangerous manufacturing defect regarding the rear window and seating assemblies in my 2020 Chevrolet Silverado. I have already had GM replace the rear window in 2023, it needs replaced again now in 2026. The rear window seal is failing, allowing a significant amount of rainwater to leak into the cab. Because of this ongoing water intrusion, the structural base and brackets of the rear seats have developed severe rust. Furthermore, I am deeply concerned that this constant moisture saturation is creating an unseen mold hazard within the cabin, which poses a direct health and respiratory risk to my passengers.This leak also risks damaging sensitive electrical components and wiring harnesses located under the rear seats and trim panels, potentially causing short circuits and sudden failures of critical safety systems while driving.Many other owners of this generation Silverado have reported identical issues, including cracked plastic frames around the sliding rear glass that cause the leaks. Because this defect compromises vehicle integrity, creates a risk of electrical failure, and poses health hazards from mold, I am requesting that the NHTSA investigate this issue as a potential safety defect requiring a manufacturer recall.

Reported

May 2026

Incident date

May 2023

Mileage

Not provided

Outcome flags

None reported

Sliding rear window leaking, causing mold and ruined seats. Had it "fixed" in 2023 only 3 years of owing it. Now here 3 years later the same issue is occurring and they're not willing to make it right. Mold causes a safety hazard for my children and anyone in my vehicle. My truck only has 30,000 miles on it and I shouldn't be having this issue

Reported

May 2026

Incident date

May 2023

Mileage

Not provided

Outcome flags

None reported

While returning from a camping trip my engine lost power. luckily I was close to an exit and managed to get it off the expressway and to a parking lot. I was able to leave the camper in the lot and have the truck towed to a dealer 30 miles away. I was informed by the dealer that the engine had sustained major berring failure. I was over 500 miles from home and I had 2 options, wait 2 weeks for a new engine to be installed or trade it in for a new truck. I opted for the trade in because I didn't want to wait 2 weeks. I figure I lost $7000 in trade in value and had to spend $2000 to have my new truck fitted for a 5th wheel hitch.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado. The contact stated that when her husband turned the vehicle on the vehicle stalled immediately. The vehicle was not able to restart. The vehicle was towed to a independent mechanic where it was diagnosed that the engine had locked up. The vehicle was not repaired. The vehicle then towed to a dealer where it was diagnosed that there was an engine, cam shaft, and barring failure related to Manufacture Recall Number : N252494000, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 50,000.

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

Chevrolet dealership diagnosed my truck and said the coolant control valve would have to be replaced.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado1500. The contact stated that while operating the vehicle, four different warning lights illuminated: ABS, Service Brake Assist, Service ESC, and two specific "Brake System Failure" messages limiting the top speed to 42 MPH and 62 MPH, suddenly the vehicle went into limp mode and had to be towed. The vehicle will be taken to a dealer. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 114,264.

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

My son was driving his 2020 Silverado Trail Boss (50,000 miles) when suddenly the brakes were inoperative. He had to drive around several cars to avoid collision finally swerving into the parking lane and using the gearshift lever moving the transmission into park to stop forward movement. He had no warning lights or any indication the brakes were going to fail. The truck was towed to Harbor Chevrolet on Long Beach, Ca. They diagnosed the problem as a “software update” and this was “rare”. They seemed along with GM customer service seemed not to be very concerned about the problem and just gave me some GM Reward points. We are afraid to drive the car at this point.

Reported

May 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

Odometer Fraud. The contact purchased a 2020 Chevrolet Silverado. The VIN plate was missing from the original location. The contact was able to locate a small VIN plate on the inside of the door. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 88,000, and at the time of obtaining a Carfax report, it was discovered that the mileage was 137,164. The contact called the Texas Department of Motor Vehicles.

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

This was a 6.2L V8 that is actively under investigation and recall for model years 2021-2024. it is a part of the same GM generation of engines 4th Generation, GMT T1XX. I was not told about the active recall for other members of the generation by the dealership in which i purchased it at in august of 2025. I purchased this vehicle less than a year ago and the engine has now suffered a catastrophic failure consistent with known 6.2L issues.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving 35 MPH, the vehicle shuddered and lost automotive power. The check engine, ABS, and several other unknown warning lights were displayed before an engine misfire. The vehicle regained automotive power before hesitated while depressing the accelerator pedal. Additionally, there was an abnormal humming sound coming from the engine. The vehicle was eventually driven to the dealer where a diagnostic test was performed. The dealer determined there was a lifter failure in cylinder #2, and there was debris in both the engine and transmission, which caused engine and transmission failures. The dealer agreed to a goodwill repair, to cover part of the cost of the repair. The manufacturer was notified of the failure and transferred the contact to the NHTSA to report the failure. The vehicle was not repaired and remained with the dealer. The failure mileage was approximately 70,000.

Reported

Apr 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving 55 MPH, there was an abnormal sound coming from the engine compartment. The vehicle lost automotive power with the check engine warning light illuminated. The contact stated that there was bluish-gray smoke coming from the rear of the vehicle. After releasing the accelerator pedal, the vehicle stalled. The contact restarted the vehicle, but the sound became louder. The vehicle was towed to an independent mechanic, where it was diagnosed, and metal shavings were found in the engine oil. Additionally, there was a misfire in several cylinders, the camshaft not operating properly, and the engine needed to be repaired or replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 131,000.

Reported

Apr 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle jerked forward extremely hard. The power train warning light was illuminated. The vehicle was driven to the residence. Additionally, the vehicle failed to exceed 60 MPH while driving. The vehicle was not diagnosed or repaired by an independent mechanic or a dealer. The contact stated that the failure was a known failure with the vehicle. The manufacturer was not made aware of the failure. The failure mileage was approximately 143,000.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

September 2020 received new vehicle ( purchased platinum extended warranty at time of sale that expires 9/22/2027)-December 2022 heard loud ticking & misfires & check engine light on took to dealer who found #2 cylinder intake lifter collapsed at that time was under warranty (9924 miles) and dealer replaced not only damaged lifter but all lifters and guides (I have this repair invoice from 12/2022) On March 31 2026 (19,000 miles)ticking came back took silverado to dealer to be checked 4/3/26 they kept truck and had to take top of engine apart where they found that the #2 cylinder lifter has collapsed again the technician went ahead & replaced lifter before getting authorization from warranty company, GM or us to do repair dealer told us that they can put old damaged lifter back in truck & we can take truck back if we want- we are waiting for the inspector that warranty company wants to send to inspect the truck they still have truck 2 1/2 weeks later the warranty company wanted to see all receipts & log for all 7 oil changes which i gave to dealer 4/13/26 was passed to warranty company who accepted all & they want to send an independent inspector to see truck on 4/20/26 we are waiting to hear if he came This is a serious safety issue as this engine 6.2 (L87) Z71 has been prone to lifter failures since 2019, we only found this out now when the same lifter collapsed a second time & that this engine has been known to shut engine down while driving & severely damaging it & even possibly causing an accident If we get no satisfaction from dealer or warranty company as a next step we will be asking for a GM regional representative to come inspect the truck see the repeat lifter failure, open a case with a corporate representative & look into the Lemon Law as this is a recurring issue-- it also affects the value & resale value of our Silverado

Reported

Apr 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

-My 2020 Trail-boss 6.2 Engine broke and stopped producing power and shut off, it is available for inspection and has been inspected by my local Chevy Dealer Tom Gibbs Chevrolet. -My son was crossing a railroad track and it shut off as he topped the tracks it shutoff at the tracks and he was able to coast down out of the way. If it shut off a second earlier he would have been stuck on the tracks and there is a list of what if's. My grandson in the car seat, my son gets out breaks his ankle and can't get my grandson out there is so many things that could have happened. -The dealer stated the 6.2 engine is known to have mechanical failures -The local dealer stated valve cover was removed and no movement in valve train needs new engine at a cost of $21,343.24 They realized that the original $250 rubber serpentine belt outlasted the engine with 123K miles on it -No warning lights, no rough running, no sounds just shut off no power.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.

Risk: Rear wheel lock up increases the risk of a crash.

Remedy: Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.

Risk: Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.

Remedy: GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.

Risk: An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.

Remedy: GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192273510.

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet.

Risk: A vehicle fire could result if materials ignite inside the vehicle.

Remedy: GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.

General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.

Risk: Over-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.

Remedy: GM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192283991.

General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The bolts used to attach the front and/or rear brake calipers may have not been heat treated and may break under load.

Risk: Broken caliper bolts can reduce brake performance or interfere with wheel rotation and increase the risk of a crash.

Remedy: GM will notify owners, and dealers will replace the brake caliper bolts, free of charge. The recall began March 23, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N202294420.

General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.

Risk: If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.

Remedy: GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.

Risk: If the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.

Remedy: GM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202314870.

General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.

Risk: If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.

Remedy: GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.

Risk: Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.

Remedy: GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.

General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.

Risk: An ABS system that does not function properly can increase the risk of a crash.

Remedy: Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.

Risk: Rear wheel lock-up can increase the risk of a crash.

Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.