A judge recently granted class action status to a lawsuit brought by 39 plaintiffs in 26 states, alleging problems with the 8-speed automatic transmissions in several late-model General Motors vehicles, including the 2015-19 Chevrolet Corvette.
Owners allege the vehicles equipped with GM’s 8L90 or 8L45 8-speed automatic transmissions made between 2015 and March 1, 2019 are dangerous to drive because of their erratic behavior.
In comments left on a story about the issue reported by Autoblog, some owners reported they are experiencing “a hesitation, followed by a significant shake, shudder, jerk, clunk, or ‘hard shift’ when the vehicle’s automatic transmission changes gears.”
Vehicles covered by the suit include:
2015-2019 Chevrolet Silverado
2017-2019 Chevrolet Colorado
2015-2019 Chevrolet Corvette
2016-2019 Chevrolet Camaro
2015-2019 Cadillac Escalade and Escalade ESV
2016-2019 Cadillac ATS, ATS-V, CTS, CT6, and CTS-V
2015-2019 GMC Sierra, Yukon, Yukon XL, and Yukon Denali XL
2017-2019 GMC Canyon.
“General Motors knowingly sold over 800,000 eight-speed transmission vehicles, which they knew to be defective for years, and yet made the business decision not to tell its customers before purchase,” alleges Ted Leopold, partner at Cohen Milstein and the court-appointed lead counsel for the case. “Dealers were directed to tell the customers that harsh shifts were ‘normal’ or ‘characteristic.’ Such decision making is both highly irresponsible and emblematic of what GM believes it can get away with.”
Cohen Milstein says that since 2015, GM has issued 13 versions of a technical service bulletin related to this shifting issue.
Furthermore, a second action about 8L transmissions is also underway in Battle v. General Motors, LLC, 2:22-cv-108783, which alleges 8L vehicles made after March 1, 2019 (MY19 to MY22) are now experiencing hard shifting, when GM replaced the automatic transmission fluid that caused the shudder problem.
Source:
Detroit Free Press via AutoBlog.com
Related:
Wheels of Justice Keep Turning in Corvette Cracked Wheels Class Action Lawsuit
Federal Judge Consolidates Class-Action Lawsuits Over GM’s 8-Speed Automatic Transmission
Class-Action Lawsuit Filed Against GM Over Alleged Defects with its 8-Speed Automatic Transmission
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GM is pulling the same shit regarding the valve problems on the LS7.
My 2015 was almost undrivable going to the 2019 caravan. They changed the fluid at Campbell and it’s been ok since but who knows and maybe this will give some peace of mind if there’s a finding in the customers favor.
What the hell is GM’s friggen problem?? Why don’t they just take care of the damn issue and be done with it, we pay a lot of money for these things. Cracked wheels now this?? And now the Camaro is going away, not very impressed with GM these days.
have 2018 gs high speed freeway drive transmission starts to shutter 2018 Cadillac does the same
After a cold start my 2016 Stingray would always briefly hesitate on the initial upshift from first to second gear. It wouldn’t hesitate like that any more when shifting from first to second until the car completely cooled down. I took it to a Hendrick dealership service shop when it was new and they replaced the factory transmission fluid with a Mobil 1 fluid and did some kind of fast learn procedure to the transmission. That worked for a while and then it went back to doing the same shit again. I just learned to live with it since it only does it one time after a cold start. Wonder if I could get in on this class action lawsuit? I too just found out today that the Camaro is being discontinued and I hated to read that.
Maybe it’s time to move the cracked wheels issue forward.
Will they let us know about the problem? And change the fluid. I heard the new oil should be LVATF HP fluid
I’ve seen a similar issue with my six speed on my 2014 Camaro. If I hold the throttle just right it will hesitate like it can’t decide to be in 3rd or 4th gear. I would not say it’s dangerous but it is annoying.
General Motors did the same thing with the ignition switches years ago they knew they were defective and would kill people but then they took a bankruptcy to get out of it but don’t worry they are too big to fail so they can continue to build a junk product for the next 20 years
Watching
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