John Williams bought a new 2025 Chevrolet Equinox RS from a Sacramento dealer in October 2024 for $36,587.12. Around 7,000 miles, he says, the transmission started shifting roughly and responding late. At about 14,000 miles, still under warranty, the dealer replaced the front axles instead of addressing the transmission and told him the fluid had been “topped off.”
Now his Equinox is the lead exhibit in a federal class action. Williams v. General Motors LLC was filed September 15 in Delaware federal court, with the Magnuson-Moss Warranty Act listed as the cause of action. The proposed class covers 2019–2025 Malibu, 2021–2025 Trailblazer, and 2024-and-later Equinox and Terrain models with CVTs.
The part that actually breaks
The complaint’s best evidence is GM’s own service paperwork. It cites TSB 24-NA-009, which applies to FWD Malibus and Trailblazers with the VT40 CVT. That bulletin names the root cause as a clutch regulator valve sticking in the valve body, flags trouble code P2714, and warns that the stuck valve can damage the forward clutch piston, the primary pulley bearing bore, and the case itself. It also says the fault may be intermittent or impossible for a dealer to reproduce.
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A CVT is basically a hydraulic computer, and a sticky valve is the bug that crashes it. Line pressure squeezes the pulleys and applies the clutch that gives you Drive. If a regulator valve hangs, the forward clutch doesn’t get the pressure it needs. The engine revs and the car goes nowhere. If the clutch half-applies and slips, it makes heat and debris, and those chew up parts that cost far more than a valve body.
Owners have already priced what happens when it isn’t caught. One NHTSA complaint quoted in the filing puts replacement at $3,500 and up for a rebuilt unit and $7,500 for a new one.
Where the case could wobble
The lawsuit puts two transmission families in one class: the VT40 and something the complaint calls the TR690. The bulletins don’t line up that neatly. TSB 16-151-24R covers chain slip, judder, and hesitation diagnostics on TR690-equipped vehicles. PIP6033 covers drive-chain, pulley, and bearing damage on the 2022–2024 Buick Encore GX, 2025 Equinox, and 2022–2024 Malibu and Trailblazer. That means the clean “sticky valve, known root cause” story belongs to the VT40 cars, while the plaintiff drives an Equinox.
The complaint says the two families share common valve-body, chain, pulley, bearing, and case architecture, but presents that as something discovery will show. Class certification depends on proving one common defect, so GM’s lawyers will go straight at that point. The filing also contradicts itself on timing: it says GM knew “since 2021, if not earlier” in one place and that GM learned of the defects “as early as 2019” in another.
The numbers and the exit
The complaint counts 358 CVT- or powertrain-related NHTSA complaints out of 1,494 total across the four models: 184 of 660 for the Malibu, 93 of 409 for the Trailblazer, 54 of 341 for the Equinox, and 27 of 84 for the Terrain. These are unverified owner reports, but the Malibu ratio is hard to wave off.
The plaintiffs also point to GM’s move away from the CVT. A GM dealer’s 2027 Equinox listing shows a front-drive model with an 8-speed automatic transmission. A transmission swap proves nothing in court by itself. Automakers change hardware for cost, efficiency, or plant logistics all the time. It’s still awkward timing: GM is dropping the CVT from the Equinox while a lawsuit says the CVT is the problem.
What owners should actually do
These vehicles carry a 5-year/60,000-mile powertrain warranty that expressly covers the transmission. If you get delayed engagement, especially on cold starts, or a P2714 code, ask the service advisor to check it against 24-NA-009 by number. Make sure your complaint is written on the repair order even if the shop “could not duplicate” it. Phone video of the car revving in Drive without moving is worth more than any forum thread. That paper trail matters for warranty fights, lemon-law claims, and any eventual class payout.
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Two fine-print items matter:
- Crash victims aren’t covered. The class explicitly excludes people who suffered personal injuries from the alleged defect. If a no-Drive event put you in a collision, you need your own lawyer.
- Insurance won’t pay for the transmission. Standard auto insurance covers collision damage, not mechanical failure. A mechanical breakdown policy or service contract might, but read the pre-existing-condition clauses before you count on it.
For used buyers, an early VT40 Malibu is probably already past 60,000 miles. Ask for transmission service records, and treat a recent valve-body job as a warning sign, not proof the problem is fixed.
What happens next
Williams wants damages, a warranty extension, and a court order forcing GM to issue a recall under 49 U.S.C. § 30118. He has also sent GM a 30-day notice under California’s Consumers Legal Remedies Act and says he’ll seek more damages if GM doesn’t respond. A summons was issued to GM on September 16. These are allegations, not findings, and GM hasn’t answered them in court yet. Recall authority in practice runs through NHTSA, not a Delaware judge, so the lawsuit’s real pressure is financial.
Had a no-Drive moment in one of these? Did the dealer write it on the repair order, or did you get the “could not duplicate” treatment?