GM engine recall investigation expands. Is your car impacted?

Key Points:

• The National Highway Traffic Safety Administration (NHTSA) has expanded its investigation into General Motors (GM) vehicles with L87 6.2 liter V-8 engines to include 2025 and 2026 model years, increasing the number of potentially affected vehicles in the U.S. to 997,743.
• The investigation focuses on manufacturing defects in the connecting rod and crankshaft, which could cause engine failure and loss of motive power, prompting GM to recall 597,630 vehicles from 2021 to 2024 model years in April 2025.
• GM offers two types of fixes: an engine inspection followed by either an oil viscosity change or a complete engine replacement if the engine fails the diagnostic test, along with a special coverage program lasting 10 years or 150,000 miles.
• Despite these remedies, NHTSA has received nearly 500 complaints of engine failures after the recall repairs, including cases where the oil viscosity change or engine replacement was performed, and an additional 191 complaints for engines produced outside the recall period.
• GM continues to cooperate with NHTSA, but the agency's ongoing investigations reflect persistent consumer concerns about the effectiveness of the recall and repair measures.