Effective November 26th, 2024, GM is releasing special coverage N242454441 for momentary rear wheel lock-up on several full-size trucks and SUVs from the 2020-2022 model years. The special coverage spans 15 years or 150,000 miles, whichever comes first, from the date the vehicle was originally placed in service.
This is related to General Motors Safety Recall number N242454440. This recall affected Cadillac Escalade, Chevy Silverado/Suburban/Tahoe, and GMC Sierra/Yukon models equipped with Duramax diesel engines.
Affected vehicles:Â
- 2020 Chevy Silverado 1500
- 2021 Chevy Silverado 1500
- 2022 Chevy Silverado 1500
- 2020 Chevy Silverado HD
- 2021 Chevy Silverado HD
- 2021Â Chevy Suburban
- 2021Â Chevy Tahoe
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2022 GMC Sierra 1500
- 2020 GMC Sierra HD
- 2021 GMC Sierra HD
- 2021 GMC Yukon
- 2021 GMC Yukon XL
- 2021 Cadillac Escalade
- 2021Â Cadillac Escalade ESV
Affected units are subject to a condition in which the transmission control module software is unable to detect problems with the transmission pressure, causing the control valve to fail. If the valve fails, the rear wheels may lock up while the truck or SUV is in motion, which can increase the risk of a crash or other accident. The problem was identified as happening when downshifting from eighth gear.
The recall instructed dealerships to install new transmission control module software. The new software can detect excess valve wear 10,000 miles before rear-wheel lockup.
Once valve wear is detected, the software prevents the transmission from shifting above fifth gear, preventing the eighth-gear lockup. At that time, the instrument panel correctly displays “reduced propulsion” and “service engine” warnings.
In total, 461,839 vehicles across the Chevrolet, GMC, and Cadillac brands are affected by the problem and are subject to recall in the United States. Another 52,220 units are involved in Canada as well. With such a high volume of affected units, this will be an expensive coverage period for General Motors.
This special coverage covers all eligible claims with repair orders placed on or after November 26th, 2024. Customers who have already paid for this service are eligible for reimbursement.
Comments
Kudos for the 15 years. Ford could learn a lesson from this.
Definitely. THEY SHOULD .
It is good to see the manufacturer turn their attention to doing such things, but it is NOT the first time.
I can list many instances of Toyota neglecting fixing issues as well WHICH WERE SERIOUS (eg: oil consumption on their 4 cylinder engines), but that is another point for another day.
However, they NEED TO APPLY the same thing to the 6.2 motors that have been failing as of late. First, the EXACT build dates (faulty MY24s seem to be in forums) will be helpful. If anyone HAS AN MY25 that suffered (there are quite a few on the road), that would be useful to hear as well.
This needs to cover 2023 also. Why doesn’t it??
This is very surprising humility/self-accountability for gm. I wish that they held themselves to this standard for the 9T65 abominations.
This type of behavior is what earns your customers. Toyota does these type of repairs when necessary. GM needs to relearn to stand behind their products. State this as a loyal GM owner and have.
some one at GM is listening and not only that seems to want to address the problems as well as the concerns BULLY for GM.
What about the crappie 8 speed , being it’s cold again my 22 Colorado bucks and slips until it’s driven for a few miles. Put some extra warranty on this supposedly no issues pos Transmission .
Why won’t they cover the pos 8 speed 8L90. I’ve got 52,000 miles on my 2019 Silverado and it’s in the shop getting a new pos 8 speed 8L90 put in it. The dealership is charging $12,600. I’ll never buy another GM product for as long as I live. They knew all along it was garbage and they kept selling them.
UPDATE; I thought my truck was getting a new transmission but I just got an update from the dealership. They’ve had it for 4 weeks now and they haven’t even started on it because there aren’t any 8L90 transmissions available. They’re out of stock with no ETA. They’ve had to replace so many of these, they can’t make/rebuild them fast enough. I can’t say that I’m surprised.
This is the type of behavior that is exhibited toward the working man! My 2020 express has the same 8L90 and these vehicles, exhibits the same issue, control module, vavle body and reprogramming done on numerous occasions. Spent 40 days in the shop last year and the hard down shift. It’s no wonder folks have no sympathy for company CEO’s…they certainly have no sympathy for us.
24 – 20 is only 4. If it is 15 years, then is should include 2009 year models. Wjat am I missing here?
Never mind, I figured it out.
It is a sad day for all Americans that work hard every day for the money they earn to be so happy they can afford a new truck one day to get let down by an American product to have had so many problems with transmission like for instance the 8 speed I believe 2014 give or take a year you don’t read up on all the bs about all the problems with different models at the end of the day it’s still a 8 speed when are we going to stand up and shout we no longer run anything as the people it’s all politics and greed and red tape bs bye bye to we the people and to top it off ins on new cars are out the dam roof now u think why they want to crush all the old cars with points and carbs smh
Just remember, the poor management (Ms Mary B) and the EPA/CAFE are to blame as well….
With the present prices of pick-up trucks, a guy would be better off buying a pre-73 model and doing a ground up restoration. Result is a better more reliable truck that is much easier to repair when needed (rare). Just buy stated value insurance and enjoy a nice piece of transport for work and pleasure.
I have had the same issue with my 2020 GMC Terrain Denali with only 35000km, so why isn’t this model recalled????
I got the same problem with my 2015 GMC I got 255,000 miles on it and it’s doing the same thing as these other trucks that being recalling
That MY unfortunately does not qualify. At this stage try to save some money to replace the transmission.
If it made 255k miles and is still working, I would go with fixing the transmission (even if it is a major expense) rather than splurging on a new truck.