GM Hit With Eight-Speed Automatic Transmission Lawsuit
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GM is facing another class-action lawsuit related to the performance of its 8LXX eight-speed automatic transmission.
This latest lawsuit was filed in U.S. District Court for the Eastern District of Michigan and involves 2019 to 2022 model year Chevy, GMC and Cadillac vehicles that were purchased after March 1st, 2019, according to Car Complaints. Plaintiffs claim the 8LXX transmissions in their GM vehicles are prone to jerking, hesitation, surging and lurching while the vehicle is in operation and that GM has been aware of these alleged issues since as early as 2013.
8L45 transmission
Plaintiffs in this suit say GM has also worked to actively cover up the alleged problems and won’t honor past warranty agreements, despite the transmissions being covered by the automaker’s express warranty. Fine print in the warranty indicates GM’s warranty covers all manufacturing defects except for those related to “slight noise, vibrations, or other normal characteristics of the vehicle due to materials or workmanship occurring during the warranty period.”
This lawsuit applies to owners of the following GM products who purchased their vehicle before March 1st, 2021:
- 2019-2022 Chevrolet Camaro
- 2019-2022 Chevrolet Colorado
- 2019-2022 Chevrolet Silverado
- 2019 Chevrolet Corvette
- 2019 Cadillac ATS
- 2019 Cadillac ATS-V
- 2019 Cadillac CTS
- 2019 Cadillac CT6
- 2019 Cadillac CTS-V
- 2019-2022 GMC Canyon
- 2019-2022 GMC Sierra
Numerous class-action suits have been filed against GM over its 8L45E and 8L90 eight-speed automatic transmissions in recent years. GM Authority has covered these reported issues with the GM eight-speed transmission extensively and even called on GM to address the purported problems in an op-ed published back in 2019. Some GM vehicles have ditched the eight-speed transmission in favor of the newer GM 10-speed it co-developed with Ford, however certain models still use this transmission, like the 2022 Chevy Camaro, Colorado and Silverado, for example.
Four plaintiffs are named in this lawsuit, including three individuals that own a 2020 or 2021 model year GMC Canyon and two separate owners of a 2021 GMC Sierra 1500 and 2021 Chevy Silverado 1500.
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The 8 speeds have too many flimsy moving parts in a small space. 6 Speed trannys are the limit in moving parts in a reasonable size case. Gasoline IC engines have a wide enough torque range that all those extra “gears” are a waste of time money and reliability.
I read more and more every day about GM transmissions. They are total junk. So I can imagine just how bad the 10 speed is going to be. More parts to go bad. Don’t buy one.
Gee ANOTHER lawsuit. I gave up on my Colorado last year and traded it in for a 2021 Ranger. I LOVE it. I dunno about these lawsuits, so I’m hurting GM the best way I can, by letting ALL my friends and family know about how horribly they treated me, and what a piece of JUNK my Colorado was. Never again GM!
I have a 2019 Chevy Suburban, that was purchased in March of 2019 with only 3 miles on the odometer. After coming from out of town on this past Friday, June 10th, I experience excessive jerking and pulling on the way home. I took it to my mechanic, because I will not be able to get into the dealership for another week. I was told my transmission fluid is burnt and I will need to replace my transmission. The cost of all repairs is over $5,000.
Now I know a 3 year vehicle should not be having transmission problems now, this is ridiculous. I should not responsible to repair this problem, trusting that this vehicle will last me more than 3 years! Does anyone have any suggestions?
Royce, you should be covered under the GM full power train warranty on your
Suburban. This is normally for 5 years, and goes with new GM vehicles.
Unless the vehicle has surpassed the 60,000 mile warranty threshold
I have a 2018 w same problems. Why aren’t we in the same class action lawsuit I wonder?
My 2017 GMC Sierra doublecab 4×4 has a six speed automatic transmission. Its been rebuilt twice in less than 9 thousand miles apart. There was a class action lawsuit on the 6 speed but a judge dismissed it because it wasn’t a safety hazard. He sited with GM.
GM transmissions are total junk. I will never buy another. If you own a GM truck get rid of it before you get 35 thousand miles on it. Im switching to dodge.
Waiting on a negotiation offer from GM arbitrator pertaining to Cadillac Escalade transmission and other issues , any suggestions ?
Roll it off of a cliff.
i cured my problems on my 2018 Sierra slt after 3 flushing and new fluid fills and still experiencing same old problems of shuddering and rough shifting GM decided to change torque converter and all computer adjusting it was supposed to be fixed, wrong it still had the same problems. I finally found the fix. I ordered a 2022 refreshed gm.slt with a 10 speed Transmission. it’s as smooth as glass, different truck. problem solved!!!!! that 8 speed is a piece of s###.