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Momentary rear wheel lockup recall


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Anybody get a notice for this recall?  I was at the dealer the other day sniffing around about trading in my 2020 and they said I had an open recall.  I ASSumed they were talking about the tailgate recall that didn't apply to my truck, but just for grins I checked my VIN and it came up with this.  Have not gotten a letter or email.  

 

GM Program #

N242454440

Status

Incomplete. Remedy not available


NHTSA

24V797

Date Issued:

2024-10-24


Description

General Motors has decided that a defect which relates to motor vehicle safety may exist in certain: 2020 – 2022 model year Chevrolet Silverado 1500/2500/3500 and GMC Sierra 1500/2500/3500; and 2021 model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL vehicles equipped with diesel engines. A transmission control valve in some of these vehicles may be susceptible to excess wear over time, resulting in a gradual loss of pressure within the valve that can cause harsh shifting. In rare cases, the rear wheels may experience a momentary lock up.

Safety Risk Description

If the rear wheels lock-up momentarily while driving, there is increased risk of a crash.


Repair Description

Dealers will install new transmission control module software that will monitor valve performance and detect excess wear approximately 10,000 miles (16,000 km) before a wheel lock up condition could occur. Once detected, the transmission will be limited to fifth gear, preventing the possibility of a wheel lock up condition, which occurs in a downshift from eighth gear. A service engine light and reduced propulsion message will also display in the instrument panel.

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Sort of odd given the transmissions for the big SUVs and light duty pickups are ten speed (jointly produced between Ford and GM i believe) vs. the six speed for the HD gassers/ten speed Alison for the oil burners for those years.

 

I did have both a '21 and '22 with the ten speed Alison and have not seen any recall for either of them and GM for some reason still periodically sends me stuff for both lol.

Edited by Crazy Canuck
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