GM Transmission Lawsuit: Where the 8-Speed, 10-Speed and CVT Cases Stand
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There is no GM transmission settlement, no claim form and no deadline as of October 2026. The big GM 8 speed transmission lawsuit — Speerly v. General Motors, roughly 800,000 Chevy, GMC and Cadillac buyers — lost its class certification in June 2025 and went back to the trial court. What put GM back in the news: in September 2026 owners filed a narrower 8-speed suit limited to California and a new class action over the CVT in the Malibu, Trailblazer, Equinox and Terrain.
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Reviewed by Leonard Goldberg, Editor · Last updated
What the Lawsuits Say Is Wrong
The main case is about GM's Hydra-Matic 8L90 and 8L45 eight-speed automatics. As the Sixth Circuit summarized it, the transmission had two alleged problems: it led some cars occasionally to shudder and some occasionally to lurch. The court recounted that GM sent dealers 60 Technical Service Bulletins and told them to describe harsh shifting as “characteristic” of GM cars, and that a redesigned second-generation eight-speed arrived for the 2022 model year.
The plaintiffs plead breach of express and implied warranty, state consumer-protection violations and fraudulent omission. GM denies the claims. Two newer cases target other gearboxes: a suit over the 10-speed automatic (10L80 family) and a suit over the CVT in smaller Chevy and GMC models, which alleges a defective clutch regulator causes slipping, shuddering and loss of forward gear.
Case Details
8-speed, 2015–2019 vehicles: Speerly et al. v. General Motors, LLC, U.S. District Court for the Eastern District of Michigan, No. 2:19-cv-11044 (consolidated with four other dockets), Judge David M. Lawson. Appeal: Sixth Circuit No. 23-1940.
8-speed, 2020–2022 vehicles: a separate putative class action, pending before a different judge, per GM's SEC filing.
8-speed, California 2019 trucks: Barba et al. v. General Motors LLC, removed to the Eastern District of Michigan, No. 4:26-cv-13030, per The Autowire.
CVT: Williams v. General Motors LLC, U.S. District Court for the District of Delaware, No. 1:26-cv-01162, filed September 15, 2026.
10-speed: a class action in the U.S. District Court for the Northern District of California, reported in May 2026.
Status: Class Vacated, New Suits, No Settlement
On June 27, 2025, the full Sixth Circuit sitting en banc vacated the order that had certified 26 statewide subclasses with 59 state-law claims. Chief Judge Sutton wrote that the subclasses did not meet the rigorous requirements for handling the claims in one court; Judge Moore and six colleagues dissented. The case went back to Judge Lawson. In its quarterly report for the period ended June 30, 2026, GM said it is unable to estimate any reasonably possible material loss and that similar cases are pending in Canada.
The newer cases are at the complaint stage. No court has certified a class in the 10-speed, CVT or Barba suits. Separately, GM recalled 43,732 model-year 2022 full-size SUVs with the 10-speed (NHTSA recall 26V085) — a recall repair is free and is not a lawsuit payment.
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Which Vehicles Are Involved
8-speed (Speerly): buyers of selected 2015–2019 model-year vehicles with the 8L90 or 8L45 — models include the Chevrolet Silverado, Colorado, Camaro and Corvette, the GMC Sierra, Canyon and Yukon, and the Cadillac Escalade, CTS and CT6. The certified class was vacated, so for now no one is a member of a certified class.
8-speed (2020–2022): a separate proposed class, not certified.
CVT (Williams): proposed class of California and U.S. buyers or lessees of 2019–2025 Malibu, 2021–2025 Trailblazer, and 2024-and-newer Equinox and Terrain with a CVT.
10-speed recall 26V085: 2022 Tahoe, Suburban, Yukon, Yukon XL, Escalade and Escalade ESV with gasoline engines. Check your VIN at nhtsa.gov/recalls.
You do not join a class action by signing up. If a class is certified or a settlement is reached, a court-appointed administrator notifies class members.
Is There Money? Not Yet
What you can do now costs nothing: keep repair orders, dealer visit records and any notes where a dealer called the shifting “normal.” If a class is later certified or a settlement is reached, documented repairs are usually what drives individual payments.
GM Transmission Lawsuit Timeline
- 1
March 2023 — Class Certified
Judge David M. Lawson certifies 26 state subclasses of 2015–2019 model-year 8-speed buyers. GM appeals.
- 2
August 2024 — Panel Upholds the Class
A three-judge Sixth Circuit panel rejects GM's challenges. GM asks the full court to rehear the case.
- 3
June 27, 2025 — Full Court Vacates Certification
Sitting en banc, the Sixth Circuit vacates the class order covering roughly 800,000 buyers and sends the case back to Detroit.
- 4
February 18, 2026 — 10-Speed Recall
GM files recall 26V085 with NHTSA for 43,732 2022 full-size SUVs: valve wear can cause harsh shifting and, rarely, rear-wheel lock-up. A 10-speed class action follows in California.
- 5
September 2026 — New 8-Speed and CVT Suits
Williams (CVT) is filed in Delaware on September 15, 2026. The narrower Barba 8-speed case for California 2019 trucks lands in the Eastern District of Michigan.
- 6
As of October 2026 — No Settlement
No GM transmission case has settled. There is no fund, no administrator, no claim form and no deadline.
Three Things to Watch For
Big lawsuits with no settlement attract people selling a payout that does not exist:
“GM transmission settlement — claim your replacement”
Articles and posts have claimed GM agreed to replace 8-speed transmissions in a class settlement. No such settlement appears in GM's SEC filings or in any court order. A site asking for your VIN, address and card number to “reserve” a replacement is not a claims portal.
Recall texts asking for payment
Recall 26V085 is a real GM campaign, and recall repairs are free at a dealer. A text or call that cites the recall and asks for a fee, a deposit or an extended-warranty purchase is not from GM. Verify with your VIN at nhtsa.gov/recalls.
“Sign up to get paid from the class action”
No GM transmission class is currently certified, so there is no list to join. Lead-generation forms that promise a payout are collecting your contact details; a lawyer's retainer is a separate decision with its own terms.
GM Transmission Lawsuit — Questions People Actually Ask
Is there a GM transmission class action lawsuit settlement?
No. As of October 2026 there is no settlement in any GM transmission class action lawsuit — not for the 8-speed, the 10-speed or the CVT. There is no claim form and no deadline.
What happened to the GM 8 speed transmission class action lawsuit?
The best-known class action lawsuit GM 8 speed transmission owners brought, Speerly v. General Motors, had roughly 800,000 buyers certified in 26 state subclasses. On June 27, 2025 the full Sixth Circuit vacated that certification and sent the case back to Judge Lawson in Detroit. The underlying claims were not dismissed.
Is there a Chevy transmission lawsuit for my Silverado or Colorado?
Yes, the Chevy transmission lawsuit in Speerly covers selected 2015–2019 Silverado, Colorado, Camaro and Corvette models with the 8L90 or 8L45. Newer suits cover 2020–2022 8-speed vehicles and, in Barba, California 2019 trucks. No class is certified now.
Is there a class action lawsuit over the Chevy transmission in the Equinox, Malibu or Trailblazer?
Yes. Williams v. General Motors LLC, No. 1:26-cv-01162, filed September 15, 2026 in Delaware, is the newest class action lawsuit Chevy transmission owners are asking about. It targets the CVT in 2019–2025 Malibu, 2021–2025 Trailblazer and 2024-and-newer Equinox and Terrain models. It is a proposed class only.
What about the 10-speed transmission and the recall?
GM recalled 43,732 model-year 2022 Tahoe, Suburban, Yukon and Escalade SUVs (NHTSA 26V085) because a worn transmission control valve can cause harsh shifting and, in rare cases, rear-wheel lock-up. A separate 10-speed class action was filed in Northern California. The recall repair is free; the lawsuit has no settlement.
Do I need to do anything to be included?
No. You cannot join a GM transmission lawsuit by registering. If a class is certified or a settlement is approved, a court-appointed administrator notifies class members, and you are included unless you opt out.
Why was the GM transmission lawsuit class thrown out?
The en banc court held that the trial court had not shown, state by state and claim by claim, how one class-wide proof would establish each of 59 state-law claims. It did not decide whether the transmissions were defective. Owners can still pursue the case on a narrower basis, which is what the Barba filing does.
What should I keep for a class action lawsuit over a GM transmission?
Your purchase or lease papers, every repair order that mentions shifting, shudder or the transmission, and any dealer statement that the behavior was normal. Check your VIN for open recalls. Those records matter if any class action lawsuit GM transmission owners have filed ever reaches a settlement.
Separate from this case: were you injured in the last 2 years?
Class-action payouts are fixed amounts through an administrator. A personal injury claim is a different case — and often worth far more. Free estimate, no obligation.