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Some 2023-2024 Chevy Corvette Units Need A Transmission Replacement

General Motors has released a Customer Satisfaction Program (CSP) for select units of the C8 Corvette due to a transmission issue.

According to Customer Satisfaction Program number N232427051, certain 2023 Corvette and 2024 Corvette units may have a condition where the transmission fasteners were improperly torqued. To correct this problem, certified GM technicians are to inspect affected Vettes and replace the transmission and all corresponding components, including a coolant flush, as necessary. Notably, it should take techs anywhere from 15.4 to 18.5 hours to complete this CSP, depending on the model.

It’s worth noting that this Customer Satisfaction Program will be in effect until May 31st, 2026. In addition, it doesn’t specify how many units are affected.

Front-three-quarter view of Corvette Z06.

For background, the mid-engined Corvette has already dealt with a few transmission-related issues since its inception. Back in December 2021, GM Authority reported that General Motors opened an investigation into the eight-speed dual-clutch automatic transmission after receiving numerous reports related to various problems.

More recently, The General updated the transmission in the C8 Corvette Stingray towards the end of the 2023 model year. Adopting a new Die 3 design, it’s currently unclear if the aforementioned fastener issue is related to this fresh transmission revision. The issue affects a number of C8 Corvette Z06 convertible units as well.

As a reminder, the current 2024 Corvette is offered in one of three flavors, as the 2024 Stingray is powered by the naturally aspirated 6.2L V8 LT2 gasoline engine, rated at 490 horsepower and 465 pound-feet of torque in standard form. Meanwhile, the 2024 Z06 features the naturally aspirated 5.5L V8 LT6 gasoline engine, rated at 670 horsepower and 460 pound-feet of torque. Finally, the 2024 Corvette E-Ray combines the aforementioned LT2 engine with an electric motor on the front axle to bring total output up to 655 horsepower.

Under the body panels, all C8 Corvette models ride on the GM Y2 platform, while production of the 2024 model year officially kicked off in September 2023 at the GM Bowling Green plant in Kentucky.

Be sure to subscribe to GM Authority for Corvette news, Chevy news, GM quality news, GM business news, and more obsessive-compulsive GM news coverage.

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As a typical Florida Man, Trey is a certified GM nutjob who's obsessed with anything and everything Corvette-related.

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Comments

  1. Hopefully these transmissions aren’t a long term reliability issue, I feel like they’ve had quite a few problems already

    Reply
  2. this is great. if you are due for this, go beat on the car and just bring it in for free service. you know ppl will be doing just that. track day every day!

    Reply
    1. Mine is a 2020 LT3 HTC which had transmission replaced in 2023. Would my transmission be affected as they are speaking of 2023 models

      Reply
      1. Was your transmission replaced on the assembly line? Probably not.

        Reply
    2. There went the values of the corvette

      Reply
  3. TOTAL number of canadian vettes affected ……3!! Just received the bulletin this morning….

    Reply
    1. Hopefully they will get the US bulletin ASAP..

      Reply
    2. mines done makes 4

      Reply
  4. It’s been one issue after another with the Tremec DCT. There were rumors floating around three to four model years ago that gm was unhappy with Tremec and was possibly insourcing the transmission. Obviously, that never happened and current C8 Corvette owners are having to deal with a transmission that can grenade at any time.

    Reply
  5. Ok so …How do I know IF my 2024 C8 Z51 AFFECTED?

    Reply
  6. how’d you get your hands on a C8 ZR1? You break into GM or something lol

    Reply
  7. OK, How do I know if my 24 Z06 HTC is in need of this service..??..Built 12/18/23..

    Reply
  8. There telling there a problem but don’t know how many or what vin#s

    Reply
  9. Glad mine is a 22, have 26k miles on it with zero problems.

    Reply
  10. I have 5,300 miles on my 2023 convertible Corvette and have not had any issues to date.

    It really kicks ass onto the highway and a rush to drive.

    My Vanessa turns heads each time I take her out.

    I’ll always drive raw, American muscle cars with gasoline engines.

    Reply
  11. Put a 6 or 7 speed manual in this car. Then I’d consider buying one. I don’t care about 1/10ths of seconds in the quarter. I care about driving experience. If I wanna play with paddle shifters I’ll use my kids PlayStation.

    Reply
  12. I have a 2023 C8 built: 1/23. Is it part of the transmission recall? The dealership called me today (4/29) saying: the transmission needs servicing to replace the filter and check the level of fluid. I have less than 2000 miles on the vehicle and the last time I drove it (stop and start driving because the 605 was shut down for about an hour) it was jerking and chugging when I was starting up. Is that the characteristics of a bad tranny?

    Reply
  13. I have a 2023 HTC it ran great until I noticed my gas mileage going down. I needed a oil change and brought it to my local Chevy dealer and a while later they called me and said my transmission was leaking and it needed to be replaced. Luckily it’s still under warranty it only has a little over 13,000 miles on it. Just think what’s going to happen after your warranty runs out?

    Reply

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