While driving on the freeway accelerating the truck made a huge clunking noise and dropped speed instantly and I was unable to accelerate. The tow truck driver said it was a transmission problem.truck had to be towed and is at the mechanic awaiting an official diagnosis

- Franklin, WI, USA

Vehicle will cut off as if an electrical short and the Service Stabilitrak indicator will flash on the dashboard along with warning chimes. This has happened several times at low speed (1st gear) especially while turning. The steering wheel locks and can not be turned. I've almost been involved in an accident this week because the truck turns off while making a turn. I was at a stop sign waiting to turn left having to cross 2 lanes of on coming traffic and when I accelerated the trucks electrical cut out and forced the steering wheel to go straight I gave it more gas and the truck turned back on. On another day I pulled up and put it in reverse turned right and the truck shut off I had to put it in park and restarted it to back in my driveway. GM need to fix this.

- Blackfoot , ID, USA

This vehicle has experienced repeated and ongoing serious defects with the 8L90 Transmission Torque Converter. I took delivery of this vehicle on 17SEP2016 and since it has required multiple service appointments to address the issue. To date it has not been satisfactorily repaired. Despite repeated failed repair attempts the vehicle exhibits erratic transmission slipping, jerking, hesitation and surging under acceleration. These symptoms persist even after a most recent torque converter replacement (and subsequent re-replacement as outlined below). This creates a serious safety concern particularly when accelerating into traffic, merging and driving uphill, but also in low speed maneuvers such as navigating a parking lot. The vehicle often feels like it is misfiring under acceleration when trying to merge, then surges forward erratically. In parking lots at low speeds, the downshift of this transmission is so abrupt that it often causes the driver and passengers alike to believe that the vehicle has been hit from behind. The repair history started within 2 years/24K miles as follows: - 01FEB2018 @ 28140 - Drain flush and fill transmission for Shudder/Hard Down Shift - Diagnosed as Torque converter issue. This helped for a short period of time - 26JUN2019 @ 53445 Miles - Same issue - same diagnosis - same repair attempt - this was unsuccessful in anyway. - 12NOV2019 @ 60653 Miles - Same issue and diagnosis - Torque converter replaced - 31JUL2024 @134218 Miles - Same issue and diagnosis - Flush and fill recommended since extended warranty had expired - paid $300 for transmission fluid flush and fill - 15APR2025@145963 Miles - Same issue and diagnosis - Torque converter replaced for $2956 - there was no appreciable improvement - 08AUG2025@151182 Miles - Torque Converter replaced under warranty from 15APR2025 work - No appreciable improvement - 20AUG2025@151500 Miles - Same issue - Advised to replace entire transmission

- Saint Johns, FL, USA

Transmission shifts erratically, sometimes violently. It seems to shift through several gears within seconds. There is no warning lights or codes that appear. I was rolling in line to exit a parking lot, going less than a crawl, and transmission shifted. It sounded like I had been rear-ended and vehicle lunged forward. There was enough distance that I was able to avoid the vehicle that was in front of me.

- Norton Shores, MI, USA

Stability track came on left me stuck a On train tracks and middle of an entersection

- Elkhart, IN, USA

The contact owns a 2016 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the transmission. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 160,000. The VIN was not available.

- Lancaster, NH, USA

This vehicle has been driven only on highway and local paved suburban roads. Fully maintained per Manufacturer recommendations. This vehicle has never been used to tow. Transmission suddenly failed during driving creating an unsafe condition on a 55mph busy road.

- Colorado Springs, CO, USA

Problem 1: passenger side seatbelt does not retract. Problem 2: the transmission failed due to a bad torque converter. This is apparently a well known problem that General Motors has been ignoring. The cost to repair is approximately $6,500 which, for a senior citizen is really going to hurt my cost of living.

- Preston , CT, USA

Unknown

- Morganton , NC, USA

2016 Chevrolet Silverado 1500 Z71 Crew Cab Transmission (6 speed automatic) 97,000 miles - At 70 mph in traffic, the transmission decided to stop working with no warning, stranded on highway 800 miles from home at 7:15 pm on Saturday, June 28, 2024. - Got it to a Chevy dealership, they had to replace the transmission. - 4 days and $7,100 later I had transportation again. - Do not have the blown transmission, dealership kept it. Engine (5.3L V8 EcoTec3) 103,000 miles - At 35 mph in traffic, the engine lost all power and had a very loud clunking sound. Had to have it towed. December 7, 2024 - Had to have it rebuilt, 3 lifters were broken along with other things. - 3 weeks and $5,600 later I had transportation again. - I have the box of parts that had to be replaced.

- Mooresville, NC, USA

Transmission completely destroyed. Transmission known to have various problems had in shop twice and still not right! Total cost so far is 4800 dollars

- Farmersville, OH, USA

The transmission failed prematurely (just over 95,000 miles). Before i had it rebuilt, It was lurching forward as I was coming to a stop. It also had trouble switching gears (very rough) and a loss of power. I understand this transmission is part of a class action lawsuit. I wanted to make sure my experience was documented with the other cases. General Motors needs to correct this problem and reimburse owners for work already completed. I will dig up my transmission repair documentation and include it with this record. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Salem , VA, USA

Transmission problem. Harsh and clunk noise when shifting. Hesitation when accelerating and when shifting to reverse. It only has 70,000 miles the dealer wants 7 to 8 thousand to fix it.

- Los Angeles Ca., CA, USA

Torque converter

- Thayer, IN, USA

2016 Silverado with 5.3L and 8L90 transmission. Experienced a P0711-Transmission Fluid Temperature Sensor "A" Circuit code and a P0700-Transmission Control System Malfunction. The P0711 code has periodically come up multiple times in the past, but would clear itself before could make to a dealership to troubleshoot. The temp reading on the instrument cluster has always been erroneous though with inaccurate readings (e.g. transmission temp reads 20 deg on an 80 deg day) or wild swings in temperature reading. There is a GM special coverage notice for this issue due to the amount of owners this has affected (N192291660), but this only applies to 6.2L owners even though multiple 5.3L owners that have the exact same 8L90 transmission are experiencing this same issue.

- Browns Mills, NJ, USA

I have had to replace the transmission in this vehicle 3 times within a year and half time frame. Initially experienced harsh shifting, significant hesitation in shifting and the transmission overheated whilst driving on the highway to the point where smoke was clearly visible. Each of the 3 failures stemmed from the torque converter. There were no warning lamps or messages present prior to the failures.

- Bridgeport, NY, USA

Jerking of 1-2 gears. Also in 5-6. Has not been inspected thoroughly by dealer. Was told -??it-??s just the way these vehicles are.-?? Merging onto oncoming traffic, I fear for my safety. No warning lights and the jerking/rumble strip feeling is becoming more common than when purchased.

- Florence, AL, USA

Transmission valve body failure, first failure around 28-30000 miles, second failure at 44,000 miles. Truck has been at Chevy garage for two weeks, I still have no answer on part or remedy

- Latrobe, PA, USA

5th and 6th gear in the transmission quiet working due to the torque converter being bad while I was driving down interstate which caused the valve body in the transmission to go bad

- Centralia, IL, USA

See attached document for complaint.

- Canandaigua, NY, USA