Locks will go up and down by themselves tranmission will downshift randomly broke down on highway service light service esc service parking brake and traction control vehicle only has 32,500 miles been complaining nothing getting done just want something else.

- Sutton , WV, USA

Transmission keeps over heating to the point that a message comes on display -??Transmission hot idle engine-?? have had this same problem before to it to the dealership they installed a temperature bypass on and this problem continues

- Jasper , GA, USA

My truck felt like running over rumble strips. At 17500 miles they replaced my torque converter under warranty. Now at 24690 miles they had to replace again, under warranty. With less than 25000 miles it is on it's 3rd torque converter. I fear that transmission is being damaged and feel Chevrolet needs to admit there is a problem. My current dealer calls it a lifetime warranty, with lots of strings, but Chevrolet should protect me.

- Centerville, TX, USA

My Silverado 1500 has developed torque converter shudder again over the course of the past few days. My current mileage is around 42,000. This is actually the second time this has happened on my specific vehicle and the current torque converter is actually the second, as I had my other one replaced after being confirmed by a dealer several months ago. I have only managed to drive around 10,000 miles between the replacement of the first part and the start of the second one failing. For information regarding the first failure please use reference ID 11458308. This has not yet been confirmed by a dealer, but I'm scheduled to get this serviced on Tuesday. I am certain that is what this is as this happened so recently. Primarily while driving at highways speeds between 1500 - 2000 RPM my Silverado will continuously surge forward every few seconds with a notable clunking in the rear. While this is happening I will watch my tachometer bounce up and down approximately 300 RPMs constantly, despite the fact cruise is set and this is on flat ground. The problem gets worse while driving uphill and increases the magnitude of the clunking/shaking. Under light throttle acceleration my truck will have a vibration coming from under the vehicle that feels exactly like driving over a rumble strip. This was the sensation that helped the dealer identify this as torque converter shudder the first time. No warning lights were present at time of incident.

- Ripley, WV, USA

My truck had been randomly misfiring but the dealership couldn-??t resolve the issue because the check engine light would go away on the way there. They were able to pull codes showing a misfire taking place and told me to return if it continued. The truck started having misfire issues again periodically fir the next 2 weeks but once the check engine light stayed on I scheduled an appointment. On the way to the appointment to Hidiburg Chevrolet we were on the interstate the cruise control kicked off, the service parking brake indicator, misfire flashing of check engine light, an ESC warning, and the traction control light came on as the truck randomly pulled to the right real quick then it stopped. Once the indicators went off all warning indicators were off and cruise control would not work. The dealership pulled codes and saw every cylinder misfired and that the other issues that took place. They tested everything and could not find the source and said that they had to wait until the indicator stayed on so they could see the issue. I left with no resolution and concern that when the misfiring could damage parts and the computer. I also fear that the issue if someone isn-??t aware of vehicles not fixed could lead to severe accidents and potential for death if not fixed.

- Mulhall, OK, USA

Transmission shuddering and shaking while driving. Once in blue moon service light flashes for less than 1 minute then goes off with no diagnostic codes to show.

- Terrell, TX, USA

Vehicle had several lights on dashboard and messages, service brake system, engine power reduced, service trailer brake controller, service esc, service power steering. Vehicle lost power steering and brakes were nearly all impossible to push-??luckily I was near my house and got home safe, my family or myself could-??ve been seriously hurt

- Rochester, NY, USA

Vehicle developed a sensation at approximately 28,000 miles similar to driving over a rumble strip. At approximately 32,000 miles this was diagnosed as a failing torque convertor. There are TSBs related to this for the 8 speed transmission, but dealer stated no known TSBs exist for the 6 speed. The truck is currently in the shop getting the torque convertor replaced and should be available for pick-up in the upcoming week. Rumble strip sensation occurred under light throttle acceleration and presented more frequently on an incline. There were occurrences on flat ground, but this was not as common. The vibration occurred most often at highway speeds of around 70 MPH, but also occurred several times in the ranges of 20-30 and 40-50 MPH. Tachometer reading during these occurrences was around 1,500 - 2,000 RPM. Issue was intermittent and would come and go. Most of the time the sensation was mild, but periodically the vibration would be severe enough the driver felt like he had been rear-ended. A separate symptom would occur while going up hills and the tachometer would bounce up and down approximately 300 RPMs with a noticeable surging sensation. When presenting, the vehicle would surge forward every few seconds until the hill had been crested. This only occurred at highway speeds with cruise set and would not present when the rumble strip vibration was present.

- Ripley, WV, USA

I was driving down I27 10 miles south of Lubbock when my 2020 Silverado 1500 3.0 Diesel engine stopped accelerating. I was going 75 miles per hour and the truck just stopped causing trauma for me and my family we were lucky enough to get to the side of the road. I ended up calling gm roadside assistance and they sent a tow truck to pick us and the truck up. The truck wouldn't engage into drive nor reverse. Once towed to the dealership, Gene Messer Chevrolet, in Lubbock, Texas, a service tech mentioned that a ton of the lifters bending push rods are going out on the late 2019, 2020 model silverado due to cheaper lifters added to the vehicles due to Covid shortage supplies. In essence, they wanted to get these models out with no regard to safety of the consumer. I'm not pleased with the craftsmanship GM has lined out on these trucks, this could've ended way worst. They jeopardized my families safety for profits. Right now the truck is still awaiting diagnostics still won't drive nor reverse per dealer service tech. It's just a terrible situation, the truck is new only has 25,500 miles on it, this needs to be recalled.

- Dumas, TX, USA

Upon starting the vehicle for the second time one day, when placing the automatic transmission into 'D' - Drive, it began to roll backwards as if it was in Neutral on a slight decline and the brakes had to be applied to avoid rolling downhill backwards. After attempting to place it back into 'P' - Park and back into 'D' - Drive and attempting to try 'R' Reverse to try to get it to move forward properly, it would not go forward. After several tries and restarting the vehicle completely, it finally attempted to move forward but would only do so at a reduced speed and would not respond to the accelerator pedal beyond a certain amount. After trying again, it appeared to move forward a bit better, but then upon stopping at a stoplight and attempting to pull out for a left turn onto the road, the speed again was reduced and I had to immediately place it into 'R' - Reverse to avoid an accident due to oncoming traffic. Finally I was able to get it to move forward a bit better and was heading directly for the dealership but since the power just was not getting to the wheels (transmission?) I pulled over and shut off the truck for a few minutes. Upon starting the truck again, it seemed to move forward better after that but had the 'check engine light' illuminated. The truck is at the dealership now, they have had it nearly a week and said they will not begin to look at it for another week at least since they only have 2 technicians who can look at it.

- Saint Charles, MO, USA

Whine sound possible torque converter does not go away. Surging or delay in switching into second gear upon first start up and put in drive.

- Navarre, FL, USA

Popping sound and hard shifting during low RPM between low gears.

- Falls Church, VA, USA

My truck has already had a shimmy feel in the transmission around 60 mph it shook and would slip gears. I just had it get worse this week. I also noticed that the front end is not shaking really bad from 60-75 mph on newly paved roads. The truck used to drive like a dream now its driving so rough and there is something going on!

- Dumas, AR, USA

The vehicle does not shift into 4WD low range. The vehicle has been taken to the dealer 4 times to correct the issue but the issue still occurs.

- Lviermore, CA, USA

The engine light has come on 3 times with a truck with only 9000 miles on it I took it to the dealership who gave me a code of P12A6 they told me Chevrolet is aware of this problem but has not come up with solution yet or even wrote a program to reflash the computer. Now I have a paper weight in my driveway and being that I live in a dual town trying to find a dealership that will fix it and provide rental car or truck. This defect can be multiple reasons with the engine harness wires chaffing or torque converter or transmission plus the whole electrical system not cranking over the truck from what I was told last time. Now I'm waiting till 730 to call a dealership see if they have a roll truck to pick it up and get it to a dealership where they can try to fix this problem.

- Lakeland, GA, USA

2020 Silverado 1500 duramax. Torque converter failed with 6700 miles on new leased vehicle. Originally began having transmission issues in Nov 2020 with surging while stopped in cold weather. Dealer reseated all connections. Began to have loud whining when shifting. Took back to dealer and informed it is turbo whine. Not convinced. March 2021 began surging again. Returned to dealer and kept for week. Mechanic stated could not produce problem. As I drove to the main street at dealership began surging. Returned to service, mgr goes with me and confirms issues with whine and surge. Back in the shop. That was 22 March and as of 8 April; torque converter failure and ordered new bell housing. Going on 4 weeks without truck.

- Abilene, TX, USA

My lights in the dash inside the truck. Go from bright, to dark black all the time since April 2020. My 4 wheel drive engage, wont work. 12/12/2020 in the snow trying to drive home

- Columbia, MD, USA

2020 Silverado rst 1500 4X4 Allstar with 8 speed transmission. At 4,000 miles developed a shutter in transmission and slipping and hard shifting mainly between gear 1-2. bad enough when you start from a stop when it shifts you fall forward. The acceleration pushes you back and then it just slips to no where till it catches and goes. Contacted shop and was told at 1st oil changed they would flush the fluid per the service bulletin. This made it way worse. Shifting is more rough and shudder is more frequent. Took it back for the 2nd time and had to drive with a tech so they could experience the issue. It is going back to the shop tomorrow 1/11/2020 with only 7,500 miles with hopes of a new torque converter. This should be a recall and result in a class action. This issue is so common and this truck is brand new. Had it in shop with 2,000 miles with an oil leak.

- St Augustine, FL, USA

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving 55 mph downhill, the vehicle independently shifted into neutral with an unknown warning light illuminated. The contact stated that the vehicle resumed normal operation after the vehicle was turned off and restarted. The contact stated that the failure recurred several times. The vehicle was taken to young Buick GMC (325 overland ave, burley, id 83318) to be diagnosed. The vehicle was repaired however, the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 21,000. ## VIN passed ## Chevrolet 2020 Silverado ##

- Rupert, ID, USA

In may I purchases a 2020 Silverado. On December 05th, 2020. I was driving on the interstate heading home from my son's football game. The "service brake system" message displayed on the vehicle's dashboard. Braking became sluggish and stiff. I initial thought the brake fluid had had leaked out. The vehicle maintained power to all other systems. Once home I checked the engine bay and brake calibers and found them to be intact. At this time the vehicle has 12,400 miles. After a initial assessment, was informed that it was determined to be a "computer glitch" that was effecting the transmission and brake sensors. The brake module was replaced and transmission "software" was updated. This was completed on December 09th, 2020. Upon completion the techs conducting a "drive test", at which time the warning appeared again. My vehicle remains at the service department, while they "troubleshoot" the problem. Due to the vague responses being provided by the dealership service staff and the lack of an estimated time line for the completion of the repairs. I believe there is a much larger issue that they don't want to reveal.

- Metairie, LA, USA