Oklahoma General Motors Vortec Engine Lawsuit Settlement Receives Preliminary Approval

    June 27, 2025
    Though this case has made it to the settlement stage, there have been many class actions filed across the U.S. related to oil consumption in the GM Vortec engine, which have mostly gone dismissed.
    685e6a4f1232260bbe137d0b Gavel

    After nearly four years, a General Motors engine lawsuit settlement in Oklahoma has been preliminarily approved, according to Car Complaints.

    The lawsuit centers on trucks and SUVs with Generation IV Vortec 5300 LC9 engines that were manufactured on or after February 10, 2011, and purchased or leased in Oklahoma. The following models are included:

    2011-2014 Chevrolet Avalanche
    2011-2014 Chevrolet Silverado
    2011-2014 Chevrolet Suburban
    2011-2014 GMC Sierra
    2011-2014 GMC Yukon and Yukon XL

    The vehicle owner who originally sued claimed his 2013 GMC Sierra had experienced oil consumption, with oil having to be added between scheduled oil changes due to a rattling noise. The lawsuit alleges the 5.3L engines contain faulty piston rings, causing damage.

    Though this case has made it to the settlement stage, there have been many class actions filed across the U.S. related to oil consumption in the GM Vortec engine, which have mostly gone dismissed.

    As a result of the settlement, any affected vehicle owners will receive about $700. Those who received piston replacements, upgraded piston rings, or similar for free under warranty will not be eligible. The decision will be made final after a final engine settlement approval hearing on September 15, 2025.

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