2021 Chevrolet Silverado 1500: transmission slipping

Filed Oct 7, 2026 · Transmission · KY

2021 Silverado with 5.3 engine/8spd transmission/38,000 miles just outside of the 5-year powertrain warranty *No current recalls under this VIN as of 10/07/2026* Undiagnosed issues with symptoms similar to transmission or rear end slippage, torque converter or clutch pack problems. No warning lights or messages have appeared 1) Vehicle seems to hunt for proper gearing between 30-40 mph (3rd to 4th gear) with light shuddering before shifting gears. Occurred 20+ times 2) Sudden jerk when taking off from dead stop. Feels like being lightly bumped from behind then drives normally. Occurred 4 times 3) Only noticed when towing appx 6,000lb trailer descending down a hill - A one-time loud clunk when easing off throttle and coasting downhill. The sound is similar to hitting a metal desk with a fist. Occurred 7 times. Spoke with local Chevrolet dealer who informed me the powertrain warranty has recently expired, and no repair cost would be covered. Recommended dealer service would be to replace the transmission fluid and filter with Mobil 1, potentially reprogram the transmission, and replace the torque converter. All on a vehicle with only 38,000 miles

Filed Sep 9, 2026 · Transmission · 53,020 miles · NC

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 40 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the transmission was slipping while shifting gears and the transmission was shuddering. The dealer was contacted by phone and made aware of the failure. The vehicle was taken to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The contact was informed that the parts were ordered. The manufacturer was contacted by phone and made aware of the failure, and a case was filed. The contact was informed that the warranty had expired five months prior. The failure mileage was approximately 53,020.

Filed Jun 10, 2026 · Brakes, Engine · AR

Loud ticking noise and power loss. Transmission shift slips from 2nd to 3rd . Called factory and dealership for check up. Said no problem… Told to Change oil. Did this, NO CHANGE.

Filed Jun 7, 2026 · Engine, Transmission · MN · crash

Loud ticking noise and power loss. Transmission shift slips from 2ed to 3rd .Recall to factory for check up. Said no problem? Changed oil. They say it was good. It is not.

Filed Apr 8, 2026 · Transmission · FL

The transmission has been having issues for the past couple days. It is the 10 speed model and I have noticed everyday for the last couple days that there is an unusual shifting pattern between 25-60mph. This is sometimes accompanied with a shudder that feels like going over rumble strips without the sound. The feeling is not constant, but I will come to a complete stop and under light acceleration it will return. Under hard acceleration it is not noticeable. However, I am concerned with the unusual shifting. It can happen at a constant speed where it will do a random shift up or down or under light acceleration it will feel like it’s slipping for just a second. The vehicle has 99,900 miles on it and there are no warning signs or lights active. The vehicle is about to be serviced to do an inspection to find the underlying issue. This is a safety concern because the vehicle could potentially cause more damage to the transmission and with the random shifting, could potentially cause an accident.

Filed Apr 6, 2026 · Transmission · GA

Hard shifting in most lower gears, slipping gears, shuddering in higher gears

Filed Nov 28, 2025 · PA

Transmission shudders and slipping gears at only 100k miles.

Filed Nov 3, 2025 · Transmission · FL

1st gear to 2nd gear are slipping

Filed Aug 8, 2025 · Transmission · 24,000 miles · IL

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving on a neighborhood road, after coming to a complete stop and attempting to accelerate, the transmission started slipping. The check engine warning light was illuminated. The vehicle was restarted; however, the check engine warning light remained illuminated. The contact stated that while driving and accelerating, there was an abnormal sound coming from the rear of the vehicle. The vehicle was taken to a local dealer to be diagnosed, and the contact was informed that there was no cause for the failure found. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 24,000.

Filed Jul 28, 2025 · Transmission · UT

Transmission problems, when the truck would get to operating temperature the transmission would lurch when I would stop the truck. If I pulled up to a stop sign/light the transmission would lurch forward hard enough to make it feel like I got hit. If I didn't have my foot hard on the brake pedal it would move the truck far enough to hit another vehicle or pedestrian. After awhile the transmission started to slip out of gear as I was driving at highway speeds or not engage correctly during acceleration. I have now been without this truck for months while they try to replace the transmission.

Filed May 1, 2025 · Transmission · 79,882 miles · MI

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 35-40 MPH, the engine revved; however, the vehicle failed to respond as intended, with the transmission slipping. The message "Engine Power Reduced" was displayed. The contact was able to pull over to the side of the road. The contact was able to drive to the residence at slow speeds. The vehicle was taken to the dealer, where it was diagnosed that the automatic transmission valve needed to be replaced. The dealer replaced the transmission valve. Additionally, the dealer replaced the rear and front differentials and the transfer case. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 79,882. The VIN was not available.

Filed Feb 27, 2025 · Transmission · 6,000 miles · IN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that during cold starts, the transmission was slipping, jerking, and banging. The failure eventually worsened and began to occur after the vehicle was driven and was warmed up. Additionally, while decelerating, the vehicle erroneously lurched forward. The vehicle was taken to the local dealer who diagnosed that the transmission valve body was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 6,000.