So is there a recall for the 10 speed transmission or not?

[66ss3964spd]

18 hours ago, shudog said:

Dealer I took it too has not even pulled it in the bay yet

Yeah, took my dealer over a week just to pull it in. The service advisor said they had so many trucks there with transmission issues their only transmission tech was overwhelmed.

 

The week long delay with getting it into the shop and diagnosed was slightly annoying, but what really irritated me was when they called and told me it needed a VB but the VB's were on nationwide back order and they had no idea when they'd get one in. That sent me into OD.

 

You might consider calling your dealer and asking them if the VB's are available if the diagnosis says that's what you need.

[shudog]

I was able to speak with a service manager today.  He said they recognize it's a valve body issue and they have "spacers" on hand, but might need to order a valve body but that shouldn't take too long.  I'm honestly less annoyed at this point with the truck malfunction and more annoyed at the dealer response.

[Tom73]

I asked AI about a recall and got this in response. Hope it helps. 
 

Yes, GM has issued multiple official safety recalls for certain trucks and full-size SUVs equipped with the 10-speed automatic transmission (10L80, 10L90, and related variants like 10L1000) due to valve body issues.

The core problem matches what you described: excessive wear on a control valve (often called the feed limit low valve) inside the valve body can cause gradual loss of hydraulic pressure. This leads to harsh shifting, and in rare cases, a momentary rear-wheel lock-up at higher speeds, which increases the risk of a crash.

Key Recalls

•  Initial major recall (NHTSA 24V-797 / GM N242454440, announced October 2024): Affected roughly 461,000 vehicles, primarily 2020–2022 Chevrolet Silverado/Sierra (1500/2500/3500), Cadillac Escalade/ESV, Chevrolet Tahoe/Suburban, and GMC Yukon/Yukon XL equipped with diesel engines. It focused on the valve body defect.

•  Expansions in 2025–2026: The campaign has grown to include more trucks/SUVs (both light- and heavy-duty) and additional model years. Most recently (February 2026, NHTSA 26V-085 / GM N252536750), GM added about 43,732 model-year 2022 full-size SUVs (Tahoe, Suburban, Yukon, Yukon XL, Escalade, Escalade ESV) with the Electronic Transmission Range Select (ETRS) system.

Not every vehicle with a 10-speed transmission is included—only specific VINs based on build dates, engine (initially diesel, later expanded), and transmission configuration. GM has also released updated “Gen 3” valve bodies as a more permanent hardware fix in some cases, in addition to software updates.

What GM Is Doing

The remedy typically starts with a free Transmission Control Module (TCM) software update that monitors for wear and can limit unsafe shifts (e.g., forcing the transmission into a safer gear and illuminating a warning light). In affected vehicles, dealers may also replace the valve body with the updated Gen 3 design.

How to Check Your Vehicle

Recalls are VIN-specific. Go to the official NHTSA website (https://www.nhtsa.gov/recalls), enter your VIN, and it will immediately show if your truck or SUV is included in any open recall. You can also contact a GM dealer or call GM customer service (1-888-988-7267 or the brand-specific line) with your VIN. Owner notification letters for the latest expansions were scheduled to begin mailing around late March 2026.

These are active safety recalls (not just TSBs or service bulletins), so the repairs are free. If you’ve been experiencing valve body problems, get your VIN checked right away—repairs have been rolling out in stages, and parts availability has improved but can still vary by dealership.

[newdude]

1 minute ago, Tom73 said:

I asked AI about a recall and got this in response. Hope it helps. 

•  Initial major recall (NHTSA 24V-797 / GM N242454440, announced October 2024): Affected roughly 461,000 vehicles, primarily 2020–2022 Chevrolet Silverado/Sierra (1500/2500/3500), Cadillac Escalade/ESV, Chevrolet Tahoe/Suburban, and GMC Yukon/Yukon XL equipped with diesel engines. It focused on the valve body defect.

•  Expansions in 2025–2026: The campaign has grown to include more trucks/SUVs (both light- and heavy-duty) and additional model years. Most recently (February 2026, NHTSA 26V-085 / GM N252536750), GM added about 43,732 model-year 2022 full-size SUVs (Tahoe, Suburban, Yukon, Yukon XL, Escalade, Escalade ESV) with the Electronic Transmission Range Select (ETRS) system.

 

 

 

 

This is why you can't trust AI searches and people should stop using them.

 

N242454440 is the reprogramming recall for software to detect the valve wear sooner that causes the wheel lockup.  It is NOT for replacing the valve body.  

 

N252536750 is ALSO reprogramming the TCM for better valve wear detection.  

 

[shudog]

Dealership now got my truck in to take it apart...  said they are replacing the valve body and it's on back order, no ETA.  

[stlchevy61]

There is a TSB 

 

https://static.nhtsa.gov/odi/tsbs/2025/MC-11014081-0001.pdf

 

My truck slipped and slammed into a low gear while accelerating through like 40mph while towing about 10k. I have 90k between my 24 2500 and my 24 3500 and never had this happened so I started searching and found this TSB. This happened in my 24 3500 with 28k on it. Sent it to the dealer and put this TSB in my write up with the symptoms I had. 
 

After the main big slip it continued to shift odd and had delayed engagements. Truck has been at the shop 2 weeks. Waiting to find out lead time on parts. My service advisor is pretty great so I have a lot of faith he will get it figured out under warranty. But I know the truck will be laid up for a while. 
 

edit: realized this is a 1/2 ton thread but leaving the reply nonetheless, sorry I’m on my phone!

Edited April 23 by stlchevy61