Hard shifting and shuddering

- Gilbert , LA, USA

On January 17, 2025, I was approaching the entrance ramp unto Interstate 10, traveling along at approximately 40 miles an hour, when all of a sudden I noticed that my vehicle started decelerating as I was pressing on the accelerator, trying to merge onto oncoming traffic. The engine started shuttering and vibrating violently! I noticed all the warning lights, gauges and indicators had come on simultaneously! There was a loud clicking sound coming from the engine compartment and backfiring coming from the exhaust. I evaluate the situation at hand and conduct a risk assessment of trying to continue on with this problem but decided to move over to the median. I was almost run into from the rear due to lack of power in which I felt would have been the result of my truck just losing power without any warning. I drove my truck to a Chevrolet dealership after speaking with a Service Advisor, on January 20, 2025. The Truck was diagnosed as needing to replace Cam Rod and Lifters.

- Mobile, AL, USA

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving 80 MPH, the transmission unexpectedly downshifted. There was no warning light illuminated. The vehicle was towed to the dealer where it was diagnosed and determined that the transmission had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 120,000.

- Avonmore, PA, USA

Transmission shudders and has a delay in shifting/starting movement of the vehicle. This problem was noticed at 98k miles about a thousand miles after I purchased the truck from a dealership. It has been inspected, and repairs scheduled, but the transmission is still on back order after 5 months of waiting. No part ETA is available from Chevrolet corporate. This issue is a safety concern due to the fact that the vehicle could hesitate to accelerate in the event of needing to take evasive maneuvers to avoid an accident/road hazard.

- Batesville, MS, USA

Vehicle purchased December 2020 Flashing check engine light that stays on- light did not stay on long enough for dealer to see, said they couldn't find any issues. The first time we had it towed and when they looked at it the light was no longer on. They were able to tell us what was going on with the vehicle when the light came on but said there were no problems. Flashing check engine light that turns off- "no light = no problem" dealer says. Eventually they printed pages showing engine misfires which we were initially told was no big deal. Later I was told I should get spark plugs changed, which I did. So far, flashing light has not reoccurred. Burns 3 or more quarts of oil between oil changes which I was assured by more than one rep that that was normal (on numerous occasions). Air conditioning quit working. Heater not working well and not at all on idle. The only setting I can really use to defrost and keep my feet warm is the "floor only" option. Mixed doesn't work, defrost only will freeze feet. Gas smell while vehicle at idle. Initially noticed when using auto start but have since noticed it does it with regular start as well. All issues have been brought to dealership, I will have to contact them for all the exact dates.

- Elk, WA, USA

-?? lifters, cam, manifold; failed. no warning, nothing just seized up -?? left with no power, braking system locked up. -?? yes; occurred January 2024. everything replaced. received back in March 2024, 10k miles later transmission begins shuttering. January 2025 lifters failed again. -?? yes it has been evaluated by dealership. they just throw their hands up. -?? no warning lights prior, driving in winter 30-40degrees weather. brakes seized, truck haulted and upon attempting to accelerate the motor was knocking and done for. January 13th. 11:51AM 2024

- Hot Springs, AR, USA

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle briefly hesitated and experienced hard shifting before returning to normal functionality. The vehicle had returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 24V797000 (Power Train); but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 60,000.

- Kearney, MO, USA

Truck has been burning oil since it was purchased new in 2020. The truck has needed 6 quarts added between every oil change. It has been to the dealer and they insist nothing is wrong. GM customer service has been no help. Motor has a ticking noise. Finally 2 weeks ago check engine lights came on and loud noises came from motor. Brought it into the dealership and they said full lifter failure and engine scoring and has been like this for awhile now. This is something I brought up to them AND GM support over the last 4 years of owning the vehicle and they always told me there was nothing wrong with it. Private extended warranty is going to cover a new engine, but is on national backorder due to all the issues with the 6.2L engine and others having issues GM won-??t acknowledge.

- Oconomowoc, WI, USA

Purchased not thinking there would be issues as truck was clean and well kept. Month and a half later torque converter went bad. Had it replaced under warranty, however, I have more symptoms from when it originally started. 6 speed transmission.

- Howell, MI, USA

Purchased a 2020 Silverado 1500, 5.3L 4x4 with 8,000 miles. Now at 66,000 miles the torque converter is bad. Shudders, hard shifting, lunges into gear, won-??t go into reverse at times. MULTIPLE complaints with these engines. There-??s a recall, but it stops at 2019-??.. WAKE UP GM!! This problem is still ongoing from 2020-2024!!! Needs to be another recall

- Friendswood, TX, USA

Transmission shuttering when driving

- Marshall, VA, USA

The rear wheels lock and most of the time its hard shifting/ or it feels like it struggling to shift to the next gear

- Marrero , LA, USA

First incident was when the vehicle had under 7,000 miles. Transmission module went. Vehicle wouldn't move. A few months prior, when we pulled our camping trailer, the integrated brake didn't work and the truck brakes overheated. Took vehicle to dealer, couldn't find a problem. A few months later the truck would not move, and found to be the transmission module. After a month and they finally got the part and repaired, no problems with pulling the camper. Than last week, we pulled out on the road, and we couldn't accelerate. A little over 45,000 miles on it. Had towed to dealer, they have diagnosed Transmission Valve Body. No warning lights. Maybe the transmission was hesitating some before it went. Waiting for the part, which no clue how long it will take.

- Fulton, NY, USA

2020 Chevy Silverado 1500 8L90 transmission failure at 40,000 miles and I am now at 90,000 miles with the same issue. I have been working on this truck tirelessly tried to fix the transmission. I-??ve had 3 transmission fluid replacements and a full torque converter replacement. General Motors knowingly sold these models to consumers when the transmission was faulty and underperforming. It shudders, shakes, and slips while driving. It-??s almost caused me to get into a few accidents. I just want compensation and to be a part of the class action lawsuit they are being filed upon. My phone number is [XXX] And my email is [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Clermont, FL, USA

My vehicle has an incomplete recall, I am not getting what I paid for, still under warranty, not living up to GM Chevrolet warranty. Doesn't feel safe to drive.

- Cortland , NY, USA

Wiring harness defect an on going defect required repair in General Motors products should be a recall. Dealership said a manufacturing error. Now public who buys these vehicles have to pay for General Motors defect. Cylinder cause check engine light to come on. Repairs by Kunes GMC of Beloit WI. invoice [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Beloit , WI, USA

about a month ago, began with a shutter or studder at low speeds. Became worse and a vibration on the interstate as it sounded like i was driving over rough ground. have now seen two mechanics in person and talked to another on the phone and all are saying the torque converter needs to be replaced. the check engine light has not come on which is also a concern as this is a major issue. safety concern is getting on the interstate into traffic and difficulty accelerating. experienced a lockup and swerve when accelerating up a hill which is very scary as my children were in the car. this is a 2020 silverado 1500 purchased new from dealership with 105k miles

- Hoover, AL, USA

The specific issue that is being recalled is malfunctioning on my vehicle. I have taken to the dealership but they won-??t help because the solution hasn-??t been identified. My truck has suffered repeated failures resulting in excessive wear and tear on the transmission. I-??m afraid a catastrophic failure will occur if I have to keep driving, without a solution. The dealer simply cleared the code. They should replace the part that is failing at a minimum. Even if it might happen again down the road. They will have a solution by then.

- Louisville , KY, USA

This vehicle, only 4 years old, experienced lifter/engine failure during normal operation, which required unsafe driving conditions and a roadside emergency. The vehicle was towed to the service location, where a complete engine disassembly took place, and required a 3 week repair period. The truck experienced a rough idle/shudder at a stoplight, then proceeded to show a flashing check engine light (P0305), a service emergency brake warning, and a service traction control warning.

- Renton, WA, USA

My 2020 Chevy truck falls under the recall out right now. I drive my family around in it and feel a bit unsafe. How long does General motors have a remedy for this recall" And what are the next steps if a remedy isn-??t made in the timeframe allowed" I-??ve contacted General Motors and cannot get an answer. Thanks

- Pearland, TX, USA