2020 Chevrolet Silverado 1500 Power Train

Transmission bucks and truck just stops for no reason.

I own a 2020 Chevy Silverado 1500, the truck currently has 51,400 miles on it. I started noticing a vibration while driving home from work that continued to get worse. After some quick online research I learned that the torque converter on the newer Chevy and GMC trucks is a weak point in their assembly. This is a very common issue and complaint for owners. The manufacturer has done nothing to resolve it or honor repairs on the defective product. My truck was one month out of the 5 year/60,000 mile warranty, they would not honor repairs because it was outside of the time window. The internal parts break up and destroy a transmission. Luckily i caught it early enough before it caused my transmission to fail while driving. I do not have the part with me. I took the truck to a shop for repairs and they did not return the defective part. No warning lights came on the dash.

The vehicle experienced a transmission control malfunction related to a transmission solenoid (diagnostic code P0776). The transmission exhibited abnormal shifting behavior and drivability issues, prompting a warning indicator and dealer inspection. The condition affects the powertrain and could impair safe operation of the vehicle, particularly if shifting becomes unpredictable or the transmission enters a reduced-function mode while driving. The issue was confirmed by an authorized Chevrolet dealership, and the vehicle was subsequently deemed inoperable pending replacement of the required transmission solenoid component. The vehicle was inspected by General Motors on November 3, 2025, at which time GM confirmed that the required part was on national backorder with no immediate availability. The vehicle remains unavailable for use due solely to the lack of this GM-supplied component. A warning indicator and drivability symptoms were present prior to removal from service. The component is currently retained by the servicing dealer and is available for inspection upon request. General Motors has advised that this component is subject to a widespread national backorder affecting numerous vehicles, resulting in extended periods where affected vehicles cannot be repaired or safely returned to service.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving approximately 5 MPH and exiting a parking lot, the rear wheels locked up as if the brake pedal was depressed. There was no warning light illuminated. The vehicle was stopped and shifted to park(P), and the vehicle was turned off and restarted several times to reset the vehicle; however, the rear wheels were still locked up. The contact disconnected the battery cables and was able to unlock the rear wheels. The contact stated that the failure was intermittent, but was a recurring failure. The contact had taken the vehicle to a local dealer, where it was not diagnosed, and the vehicle was not repaired. The contact researched online and related the failure to NHTSA Campaign Number: 26V083000 (Power Train); however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 92,000.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving approximately 45 MPH, the vehicle was shuddering with an abnormal sound coming from the rear of the vehicle. There was no warning light illuminated. The contact stated that the failure only occurred at speeds over 40 MPH. The vehicle was taken to an independent mechanic, who diagnosed the vehicle and determined that the transmission control valve had failed and needed to be replaced. The vehicle was not repaired. The contact researched online and associated the failure with NHTSA Campaign Number: 26V083000 (Power Train); however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 80,000.

Rear wheel lock at speed up due to failed valve body and transmission

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed, and the rear wheels locked up. The contact stated that the failure almost caused a crash. No warning lights were illuminated. The rear wheels locked up for several seconds, then the rear wheels released, and the tires chirped. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact referenced an unknown recall with a similar failure description; however, the VIN was not under recall. The contact stated that the vehicle was important due to scheduled doctor's appointments. The manufacturer was not made aware of the failure. The failure mileage was approximately 73,000.

Transmission/ torque converter. Truck feels like you are riding over rumble strips and shaking steering wheel. Confirmed by dealer. No warning signs

INTERMITTENTED,NOT ALL THE TIME BUT I GET A HESITATION WHEN I PUT THE TRAN IN DRIVE PRESS THE ACCERATOR THEN IT LURCH FORWARD UNEXPECTED......

Vehicle was brought to Payne Chevrolet(Weslaco,Tx)for Recall N242454440. After the software update, the vehicle entered 'Limp Mode' and threw a Permanent Fault Code P2817 (Solenoid 8 Stuck Off). The dealership and GM Executive Resolution (Case #86918646) have confirmed this is a mechanical failure of the valve body, but are refusing/delaying the remedy due to a branded title. The vehicle is currently grounded and unsafe to drive as it risks rear-wheel lockup. GM has failed to provide a timely remedy or alternative safe transportation.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving approximately 40 MPH, the contact stopped for a traffic signal, and the accelerator pedal was depressed when the light changed; however, the vehicle failed to respond. The contact stated that the engine was still running; however, the vehicle failed to respond while the accelerator pedal was depressed or the gear shift lever was moved. The contact stated that the check engine warning light was illuminated. The vehicle was towed to a local dealer, where it was diagnosed, and determined that the Transmission Control Module needed to be re-flashed. The vehicle was repaired; however, the failure reoccurred. The contact had taken the vehicle back to the same dealer two more times for the same failure, however the vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 41,000.

Rear wheel lockup due to transmission valve body issues.

Making turn at slow speed. Possibly Transmission slipping and rear tire locking up. engine light turned on

The transmission has been slipping and shuttering which shouldn’t be an issue at 119,000 miles. This opposed a huge safety risk for me and my girlfriend on the highway. I was driving and it shuttered so bad i had thought the wheel was loose and coming off. I had to pull over on the highway to check the lugs and came to find out it’s the transmission, because it shuttered numerous times after. On top of that the entire trip was the transmission shuddering slightly making the wheels cut the the left and right. But throughout the trip, it had a slight shutter the entire time and a couple of big shutters, and one very large shutter that had my girlfriend think I ran over a bunch of wood in the road resulting in me pulling over being in danger and possibly wrecking from the shaking, and having to exit my truck on the side of the highway with 18 wheelers and other vehicles flying at 80+ miles an hour. Besides the safety issue, there should be no reason for these transmission going out like this at 60k miles and 100k miles it’s extremely cheap of GM and a huge hazard to many families.

The transmission quite working while I was driving down the road. Took my foot off of the gas pedal and my truck bogged down completely and had no power to it. It is at an auto repair shop so I am unaware if it could be inspected under request. Took time but was able to safely get off the roadway and out of traffic. It did the out of no where. Started having some issues this summer but no warnings lights ever came on, so I didn’t think much about it. Completely stopped in the middle of the road and had little to no power from the transmission to the truck to move off of the road. My truck is currently in an auto repair shop waiting on a new transmission to be installed. I had it towed to an independent auto shop from where it stalled. There were not warning lamps or anything at the time of my transmission quitting. Truck started to run rough and shifting hard this summer but without warning lamps I didn’t take it anywhere. When running on the interstate it was shuttering which I thought was due to possible tire out of balance. It would also hesitate to take off when put into drive. It had several of the same issues that Chevy had on other transmissions that were recalled within this same time frame.

VIN: [XXX] Component: Powertrain / Transmission / Recall Remedy Description of the Problem: Recall remedy applied in June 2025 failed. Transmission subsequently failed. On August 25, 2025, a Mangino Chevrolet technician confirmed in writing that the failure was “related to the recall that was previously performed.” My truck was previously in GM’s care at Van Bortel Chevy (Nov–Dec 2024), after the recall officially opened on 10/24/2024, but the remedy was not applied at that time. I was forced to continue driving thousands of miles with the defect still present. Despite the written admission that the failure is recall-related, GM Customer Care has only offered a 50/50 split on the transmission replacement (my portion ≈ $3,950.34 + tax) and is now attempting to reframe the issue as a maintenance problem. Transmission fluid service intervals are not the cause here — the federally mandated recall remedy failed to prevent the very failure it was supposed to address. This situation has left me without a safe, reliable vehicle. GM has acknowledged the recall remedy failed but is refusing to take full responsibility. I am requesting that NHTSA investigate GM’s handling of this recall remedy failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Rear wheels of vehicle locked up momentarily mutliple times while driving between 45 and 65 miles per hour. Originally happened multiple times while towing a travel trailer but subsequently happened again with no trailer being towed. No warning lights or other sign of a problem leading up to any of the malfunctions. After locking up for approximately a quarter to half a second, the wheels release and the truck drives normally. Sudden wheel lock up could lead to loss of control or cause a vehicle to collide with the back of affected vehicle. Issue was reproduced by dealer service department and they recommended a new transmission valve body. This seems to be related to the recall for the transmissions on the diesel models of this truck but the gas trucks were excluded from that recall.

I had the lifters and camshaft fail in my truck as a result of the faulty fuel management system GM put in these trucks during these years of manufacturing. I was driving my kids to an appointment when they failed in the middle of the highway, leaving the truck unable to run. I have reported the problem to the dealer as well as reported to GM directly. I have spoken with 3 different garages, all of which have made it a point to tell me this is a common issue in these trucks. Prior to this happening, there were no lights on to warn me of this problem. The repair cost is $12,000 and that is to put the same parts in the failed the first time. I don’t know many consumers that can afford the costs of these repairs when GM knows this is an issue but refuses to do anything about it.

Hard shifting and shuddering

Transmission jerky or slipping

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that once the vehicle had warmed up, while driving at speeds of 50 MPH or higher, the vehicle shuddered abnormally while depressing the accelerator pedal, and the vehicle became difficult to steer. There were no warning lights illuminated, or codes displayed. The vehicle was taken to the dealer, who diagnosed that the torque converter and reaction carrier had failed. The transmission was scheduled to be replaced. The manufacturer was informed of the failure and opened a case. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 61,200.

Front left cv axle is making a noise like a metal to metal noise. There was a recall on the 2019 for the same reason. Mine is a 2020. Same problem.

Having transmission issues like other silvardos but not included in recall

Having transmission problems but include in recalls like other silverados

10 speed 10l80E transmission Whining noise from trans fluid pump gears and bearing known problem in the silverados pleease see link below [XXX] this involves taking the gearbox out and replacing the gears very expensive. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)