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My 8-month-old, 10,000-mile 2024 Silverado double cab with a 5.3-liter engine and 6 speed transmission would not go in reverse nor above 40MPH 2 weeks ago. It was towed into the dealer and discovered that it needs a new transmission valve body and a 4-wheel drive actuator. Unfortunately, dealers that have a valve body don’t want to give it up and it’s on backorder at the factory with no delivery date. I did file a case with Cheverolet, and they say they’ll have a senior advisor contact me and look into it. Of course, the timing of the holidays isn’t helping! The dealer has been as good as they can, and I was given a loaner (2wd Equinox) which is not reassuring since we’re getting snow in upstate NY.!
The service advisor kind of indicated that they have been hearing about this issue. Has anyone else encountered this?
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I believe they are still using the 6L80E transmission in the 6-speed models. While I wish you and your new truck nothing but the best, I do hope GM has addressed the torque converter issues in this unit, as they’ve been a significant problem so far.
Since 2020, the electrical and computer-related issues have skyrocketed, with Technical Service Bulletin (TSB) after TSB being issued. It feels like government-imposed fuel economy mandates are forcing automakers to roll out changes before they’ve had enough time to complete all the necessary research and development. I would not be surprised at all if your issue is not electrical, maybe the transmission module.
Unfortunately, U.S. manufacturers seem to be facing more challenges in this area compared to others. It reminds me of the COVID vaccine rollout—pushed out quickly, with insufficient research. The U.S. government’s pressure on automakers to meet fuel economy targets and accelerate the shift to EVs is immense, but it doesn’t feel sustainable. I wish you the best with your new truck, I would put some serious pressure on the dealer where you purchased the truck, call the hotline. The squeaky wheel gets the grease. See ya, Happy holidays
PS, I have been in the automotive tire and repair business going on my 47th year …. -
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RG, I did some research on your truck and the valve body part number 24065357 is on back order with no promise date, the transmission part number 24297784 is also on back order but Classic Chevrolet in Texas shows having of them in stock. They are a huge GM power train dealer and ship allover the country so you might have your dealer call and purchase so they can get you back on the road.
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