GM V8 Recall Sparks Lawsuit Over Repair Adequacy

General Motors is facing a consolidated federal legal challenge as multiple lawsuits tied to failures in its 6.2-liter V8 L87 engine have been merged into a single case, intensifying scrutiny of the automaker’s recall response and repair strategy, Shawn Henry reported for The Auto Wire.

While the recall acknowledged mechanical issues within the engine, vehicle owners argue the remedy offered by GM does not fully address the underlying defects. (Photo: Holmart Holden Parts)

The legal battle stems from widespread complaints about engine failures first flagged to federal regulators by the National Highway Traffic Safety Administration (NHTSA), which received more than 1,000 consumer reports.

Those complaints prompted a federal investigation and ultimately led GM to announce a recall in April 2025 covering nearly 600,000 trucks and SUVs.

The recall cited problems involving the engine’s crankshaft, bearings and connecting rods.

The recall affects certain 2019 through 2024 model-year vehicles, including Chevrolet Silverado 1500 and GMC Sierra 1500 pickups, as well as full-size SUVs such as the Chevrolet Tahoe, Suburban, GMC Yukon and Cadillac Escalade.

While the recall acknowledged mechanical issues within the engine, vehicle owners argue the remedy offered by GM does not fully address the underlying defects.

At the center of the consolidated lawsuit is the claim that GM’s proposed fix — which involves a change in engine oil specifications — is insufficient to prevent future failures.

Plaintiffs contend the engines remain fundamentally flawed and that owners face continued risk even after repairs are completed.