GM’s V8 Engine Recall Backfires as Multiple Lawsuits Merge Into One Major Case

General Motors faces unified legal battle

General Motors is facing growing legal pressure over problems with its 6.2-liter V8 L87 engine. The National Highway Traffic Safety Administration (NHTSA) first raised the issue with federal regulators after receiving more than 1,000 consumer complaints about engine failures. NHTSA began investigating the problem, which led to General Motors announcing in April 2025 a recall of nearly 600,000 trucks and SUVs due to engine crankshaft, bearing and connecting rod failures.

The recall affects certain model year 2019 through 2024 trucks and SUVs, including the Chevrolet Silverado 1500 and GMC Sierra 1500; the Chevrolet Tahoe, Suburban and GMC Yukon; and the Cadillac Escalade. While the defects themselves are the central issue in the lawsuit, the primary argument advanced by the plaintiffs in the consolidated lawsuit is that the repairs provided by GM (changes in engine oil specifications) were insufficient to correct the engine’s defects. The class action lawsuit will proceed in Michigan.

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Federal judge consolidates GM engine lawsuits

Due to the nature of the massive auto defects, Powell filed numerous other lawsuits soon after he filed his first lawsuit earlier this year. By August 2025, a federal judge had consolidated ten or more such lawsuits into the Powell lawsuit, creating a single lawsuit. Another lawsuit has since been added to the list of complaints against GM.

By consolidating actions, plaintiffs will be able to introduce evidence in a single action rather than having to do so multiple times in different courts. The court will examine the extent to which GM remedied the engine defects and whether the plaintiffs should receive compensation beyond the repairs GM provided under the recall.

What this means for GM and car owners

The lawsuit poses a serious threat to GM and could result in increased warranty costs, damage to GM’s brand image and/or financial liability for GM. On the other hand, for owners of the affected trucks and SUVs, the lawsuit could ultimately result in some form of monetary damages if the court rules in their favor. Additionally, the ruling could set a precedent for how manufacturers respond to similar recalls in the future.

Despite the recall, there are still hundreds of thousands of General Motors trucks and SUVs on the road whose owners believe their engines are fundamentally defective. The outcome of the lawsuit will help determine whether those convictions are valid and what additional steps, if any, GM needs to take beyond its current recall program to address the issues.

This article was originally published by Autoblog on December 10, 2025 and first appeared in the News section. Click here to add Autoblog as your preferred source.