general problems of the 2020 Chevrolet Silverado 1500 - part 1

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.

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.

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.

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.

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.

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.

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?.

Was driving vehicle and it revved very high and then got stuck in a single gear. Mpg have also been impacted as of late. Gm saying VIN isnt under the valve body recall, but dealer has determined the valve body needs to be replaced.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the rpm became extremely elevated. The accelerator pedal was depressed; however, the vehicle failed to respond. The vehicle was turned off and restarted. No warning lights were illuminated. The vehicle was towed to the local dealer, where it was diagnosed and it was determined that the torque converter was inoperable, and that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline. The approximate failure mileage was 80,000.

Problem#1 :the transmission shits erratically and down shifts really hard and has a vibration going down the highway. Problem #2: the rear-end differential seems to lock up when turning sharp corners.

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.

I replaced the fluid in my truck at 142k miles and when I went through all of the gears and checked for drips or leaking it was fine on that front and then I went to reverse and all of the gears were neural and only revved and when I went into neutral it started driving forward like it was the drive gear.

Internal oil consumption. With no oil puddled or spattered under the vehicle at time of purchase from a dealership or since then, a dealer certified vehicle with afm at 153 miles from leaving the dealer the oil was non-existant on the dipstick. This directly indicates a TSB, techical service bulletin involving the cause of failed lifters causing internal oil consumption and damage to lifters, cam shaft, push rods, rings and possibly more. This is a common result of the active fuel management system which shuts off some of the cylinders for fuel economy for Chevrolet v6 and v8 engines. The problem was reported to the dealer by me imediately after the oil check at 153 miles and then towed to the dealer. As this is considered a catastrophic amount of oil loss, the vehicle could've been rendered inoperatable during operation in traffic and been a servere safty hazard. The dealer after initial inspection sent me a message that they think the problem is an undetectable small leak so they put some dye in the oil to check it. Which evades the actual internal consumption problem of 1. 5 to 2 or more quarts of oil lost in just 153 miles by that ratio that would amount to 13 quarts per 1,000 miles. And helps them stall for time, to try to run out the very short 3 month/3000 mile drivetrain warranty. There was noticable erratic engine performance and some shudder but that shudder may have come from the transmission. The odometer read was 115690 at purchase and 115843 when towed=153 miles driven from when the certified inspection was performed for a loss of 1. 5 to 2 quarts that I know of, it could have been much more oil missing. A suddenly inoperatable vehicle in town at intersections or on the highway at high speeds could be deadly for myself or others in traffic. I took and have videos of checking the dipstick to show it dry but it's an mp4 file which I don't see a place to upload it here. Available upon request.

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.

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.

To whom it may concern, I am writing to formally file a complaint regarding my 2020 Chevrolet Silverado 1500 diesel and to request immediate review and assistance from general motors. I purchased this vehicle from a gm dealership in 2024 with approximately 70,000 miles for roughly $42,000. The vehicle currently has approximately 121,000 miles. Since purchasing the vehicle, it has suffered major breakdowns approximately every three months, requiring repeated costly repairs and making the vehicle unreliable for regular use. Most notably, the vehicle experienced a full transmission failure at approximately 103,000 miles — just after the factory warranty expired, requiring complete transmission replacement at my expense. To date, I have spent nearly $20,000 in repairs, including but not limited •full transmission replacement •two alternator replacements •glow plug system failure •coolant control valve failure •engine control / computer module failure •transmission cooling system failures •ongoing electrical system issues •additional drivetrain and mechanical problems these are critical powertrain, electrical, and engine management components — not routine maintenance items. The repeated failure of such systems strongly suggests underlying manufacturing or design defects. The vehicle has been properly maintained and serviced, yet continues to experience serious and recurring defects well beyond what would be considered normal wear and tear for a modern diesel truck. At this point, my total investment in this vehicle exceeds $62,000, and I am left with a truck that I cannot trust and that has become financially unsustainable to own.

Transmission bucks and truck just stops for no reason.

During an extreme cold event in interior alaska (–44°f), the vehicle experienced a sudden emissions?system failure that triggered an epa?mandated limp mode, limiting the vehicle to 5 mph on high?speed highways. This created an immediate life?safety hazard because it was impossible to maintain a safe speed or exit the roadway due to snow berms. Prior to the failure, the vehicle displayed “service emission system” warnings and multiple dtcs related to the reductant heaters and sensors. A dealership technician later confirmed a “burnt pin” at the reductant pump connector, consistent with thermal?electrical overload. This failure mode matches gm’s TSB 21?na?006, describing connector overheating in cold climates. After the repair, the vehicle continued to exhibit safety?critical symptoms, including harsh downshifts, delayed engagement, and jerking during deceleration, consistent with recall 26v083000 (rear?wheel lock?up risk). The vehicle also continues to emit an electrical burning odor in cold temperatures, consistent with recall n192206310 (block?heater fire risk). The only gm dealership in the region issued a “termination of business relationship,” preventing access to all recall and warranty repairs. This has created a 321?mile “service desert,” making it impossible to obtain federally mandated recall remedies. The vehicle remains unsafe to operate due to unresolved transmission, electrical, and propulsion issues.

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.

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

The timing chain failed. It is at the dealership available for inspection. Vehicle was unable to accelerate correctly while driving. If it had blown a valve or locked up the engine we would have been stuck on the highway with my kids in the vehicle. Problem has been confirmed with the dealer. It is a known defect with this vehicle but my VIN was not one that was recalled. No issues had came up before it failed. Just went to accelerate and you could feel it slipping and the truck stuttering forward.

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.

While driving at highway speeds, multiple warning lights illuminated on the dashboard at the same time, including engine and powertrain warnings. The vehicle suddenly began operating abnormally, with loss of power and unstable driving behavior, making it unsafe to continue driving. This same issue has occurred multiple times previously and the vehicle has been taken to an authorized Chevrolet dealership for repairs on three separate occasions. Each time, repairs were performed, but the problem returned. The most recent incident occurred while driving on the highway and created a serious safety risk to the driver and other vehicles. The vehicle is not safe to drive.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while starting the vehicle, there was an abnormal odor coming from the vehicle. Upon inspecting the vehicle, the contact became aware of coolant leaking from the front of the vehicle near the transmission, with the check engine warning light illuminated. The contact retrieved dtc: p0016. The vehicle was taken to the dealer, where it was diagnosed, and determined that the coolant control valve, motor mount, and camshaft timing had failed. The dealer informed the contact that the coolant control valve, motor mount, and wiring harness needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA hotline for further assistance. The approximate failure mileage was 88,000.

My 2020 chevy silverado needs a torque converter replacement. My truck is at 90k miles and out of drivetrain warranty. However, this is a known gm problem with trucks (and other vehicles in this class of engine/transmissions). I have talked to gm corporate and they are only willing to rebate 20% of the cost of this repair. I believe they should pay for the entire repair since this is a known problem for all these vehicles in this class. Please help me to get gm to understand this and fix this known problem.

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. . . . . .

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

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.

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.

Back in 7/2025, I was going to a dr appt in chandler, az. When I arrived in maricopa, az, my truck stalled at the first stop light and would not start. I went over kraegan auto parts and bought a battery. After about 10 days, I was having to jump start my truck for the next few days. I took the battery back and they realized that it wasn’t the battery my truck called for. So, now I have the correct battery and everything working like it supposed to. In Nov 2025, my battery was starting to drain like overnight, and jump starting my truck every morning. I also told them, that the transmission was acting up. When I got on the highway my truck would be at 5000 rpm while doing 60 mph. I be would have to pull over to side of the highway, shut the engine down, and restart. Usually it would be good after the first time. So, up until now, I have no heater, no ac, my windows don’t go up or down, cruise control don’t work, l can’t move my power seat, so my wife has to put a pillow behind her and a pillow beneath her when she drives our truck. And I be still haven’t mentioned all be the little icons that are lit on the steering column. My truck is at the jerry seiner casa grande, az. I have the protection plus coverage on my truck with GA security, and I was told that because it’s a battery issue and found me at fault, they won’t cover me and I need to pick up my truck, because I can’t afford a $680. 00 price tag. I’m on medicare. That’s why I paid the $3500 for the protection plus coverage. So I guess it’s my fault or fault of my battery, my transmission doesn’t shift gears, power windows don’t work, heater or ac don’t work, can’t forget the cruise control. They said they are not covering nothing, to come get my truck.

Transmission shutters while driving at speed.

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.

Ever since I bought the truck I have had a issue with the transmission after it heats up an around 57mph the transmission is stuttering like crazy fluids an filters has been changed an no change on the transmission operation. After talking to many shops states that my year model a style of truck has terrible transmissions this is a safety issue that needs to be looked in to. I’m scared to put my kids in my truck because of this. I have notified the dealer the Monday after I got the truck.

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.