— Honda 9-speed transmission problem leads to class action lawsuit filed by 7 owners alleging defective ZF 9HP automatic transmission.
The Honda 9-Speed Transmission Litigation involves these vehicles.
2016-2022 Honda Pilot
2018-2019 Honda Odyssey
2019-Present Honda Passport
2020-Present Honda Ridgeline
The class action lawsuit alleges that Honda began equipping certain vehicles with ZF 9HP 9-speed transmissions in 2014. But these transmissions allegedly caused a lot of trouble for Honda owners.
The lawsuit states that “the transmission control software (including the transmission control module and the powertrain control module) was improperly designed and/or calibrated.”
The plaintiffs say the control module governs the transmission’s interaction with the engine. The software must be calibrated correctly for the nine-speed transmission to function properly.
The transmission lawsuit claims Honda caused the transmission to fail due to improper shift timing.
The plaintiffs claim that transmission issues caused warning lights to illuminate, delayed and jerky shifts, loud noises, rough gear engagement, acceleration and deceleration issues, and owners reported that their vehicles lost power.
Honda 9-Speed Transmission Litigation – Plaintiff
— California plaintiffs Kevin and Anita Moore purchased a new 2018 Honda Odyssey, but when the vehicle showed 71,000 miles on the odometer, the Odyssey began to jerk and lag when accelerating from a stop or when going faster than 40 mph.
Honda 9-Speed Transmission The lawsuit states that Honda replaced the transmission in July 2023, but the transmission problems persisted.
— South Carolina plaintiff Tony Boatwright purchased a new 2019 Honda Odyssey that allegedly developed transmission issues within the first few months.
Allegedly, the 9-speed transmission shifted independently, causing the vehicle to go too fast downhill, forcing Boatwright to brake urgently.
The plaintiff took the vehicle to a Honda dealership within three months and was told the vehicle was running fine. However, the plaintiff claimed that the Honda was still having transmission issues.
— Plaintiff Cheun Yong of Texas purchased a new 2019 Honda Odyssey LX, but within a few weeks began to have problems with its 9-speed transmission, especially at speeds around 30 mph.
“In the spring of 2020, Mr. Yang took the vehicle to the dealership where he purchased it, where a service technician confirmed the problem during a test drive. The dealership technician reported it to him after calling the defendant and told him that this was normal for the vehicle. His vehicle problems have persisted.” — Honda 9-Speed Transmission Lawsuit
— Illinois plaintiffs Thomas and Julie DeSilvia purchased a new 2022 Honda Ridgeline, but within a week, the 9-speed transmission suddenly began making loud and repeated thumping noises when shifting between first and second gears.
The Honda dealer allegedly stated that there was nothing wrong with the vehicle, but the plaintiff claims that the Ridgeline still has issues with the 9-speed transmission.
— Plaintiff Mark Treleven of Ohio purchased a new 2016 Honda Pilot, but shortly after use, its 9-speed transmission began to shudder and shift suddenly during ignition and low speeds, as well as shudder and hesitate when pressing the brake or accelerator pedals.
The Honda dealer inspected the vehicle and told the plaintiff everything was fine. But the plaintiff said he still had problems with his Pilot.
Honda 9-Speed Transmission Litigation was filed in the U.S. District Court for the Northern District of California (San Jose Division): Kevin Moore v. American Honda Motor Co., et al..
The plaintiffs are represented by Capstone Law APC and Berger Montague PC.
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