– A class action lawsuit over GM engines will finally begin after the judge consolidated multiple L87 engine lawsuits and named which attorneys will lead the class action in Michigan.
According to the class action lawsuit, these vehicles are equipped with defective 6.2-liter V8 L87 engines.
2021-2024 Cadillac Escalade
2021-2024 Cadillac Escalade ESV
2019-2024 Chevrolet Silverado 1500
2021-2024 Chevrolet Suburban
2021-2024 Chevrolet Tahoe
GMC Sierra 1500 from 2019-2024
GMC Yukon 2021-2024
2021-2024 GMC Yukon XL
The first class action lawsuit over V8 engines was filed only after the National Highway Traffic Safety Administration opened a federal investigation into engine failures. GM owners complained that their engines were failing due to problems with the crankshaft, bearings and connecting rods.
In late April, GM announced a recall for L87 engines affecting nearly 600,000 people, after at least 28,102 field complaints or incidents involving the GM V8 engines. The government is also aware of at least twelve reported accidents and twelve injuries caused by engine failure.
The class action claims that the recall repairs are not good enough and will not actually fix the vehicles.
As is the case with most class action cases, once a complaint is filed, attorneys across the country file more suits. In this case, the original engine class action was followed by at least ten other L87 engine class actions, which were merged into Powell vs. General Motors in August 2025.
Those lawsuits include:
Powell v. General Motors (filed February 18, 2025)
Hernandez v. General Motors (filed April 3, 2025)
Hecht v. General Motors (filed May 9, 2025)
McNamara v. General Motors (filed May 12, 2025)
Houchin v. General Motors (filed May 16, 2025)
Ritteriser v. General Motors (filed May 19, 2025)
Wrice-Scott v. General Motors (filed May 21, 2025)
Muhammad v. General Motors (filed May 23, 2025)
Rahaman v. General Motors (filed June 13, 2025)
Markus v. General Motors (filed June 18, 2025)
And now another lawsuit over GM engines (Hermanowicz v. General Motors) is consolidated with Powell. Additionally, attorneys fought the class action lawsuit in court.
The judge chose these firms to lead the lawsuit: The Miller Law Firm, PC, DiCello Levitt LLP, Hagens Berman Sobol Shapiro LLP and Lieff Cabraser Heimann & Bernstein LLP.
The GM Motors class action lawsuit will be filed in the U.S. District Court for the Eastern District of Michigan (Southern Division): Powell et al., v. General Motors, LLC, Case No. 4:25-cv-10479-SDK-KGA.
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