General Motors PCV System Class Action Lawsuit Overview: 

  • Who: A group of General Motors vehicle owners have filed a class action lawsuit against the car manufacturer. 
  • Why: Vehicle owners claim GM fails to disclose an alleged defect with the positive crank ventilation system in certain vehicles it manufactures and sells. 
  • Where: The class action lawsuit was filed in Michigan federal court.

General Motors fails to disclose a defect with the positive crank ventilation system (PCV) in their vehicles’ internal combustion engines, a new class action lawsuit alleges. 

A group of GM vehicle owners claim the PCV systems in certain vehicles manufactured by the company are prone to “plugging and clogging” during cold weather. 

The vehicles affected by the alleged defect are GM’s 2010-2016 Buick Lacrosse, 2011-2017 Buick Regal, 2012-2017 Buick Verano, 2010-2015 Chevrolet Captiva, 2010-2017 Chevrolet Equinox, 2013-2014 Chevrolet Malibu and 2010-2017 GMC Terrain vehicles, according to the class action lawsuit. 

In the event a PCV system malfunctions, the owners argue the vehicle’s engine pressure can increase and lead to a rupture of its rear main seal, which they say can cause both catastrophic and permanent damage. 

GM, vehicle owners claim, sent out a “Diagnostic Tip” bulletin to dealers, but not to customers, in 2019 on account of the alleged clogging issue.

GM Class Action Claims Automaker Neither Recalled Affected Vehicles Nor Extended Warranties

Vehicle owners argue, meanwhile, that GM neither recalled the vehicles nor extended their warranties, instead electing only to “advised technicians to use a drill bit to clean out the clogged orifice.” 

Further, vehicle owners claim GM has known since “at least 1985” about the “PCV system’s vulnerability to cold weather and clogging” with owners arguing the company has repeatedly advised dealers on “how to fix” the issue.

“Despite this track record, GM continues to conceal this defect from consumers at the point of sale and continues to design, manufacture, distribute and sell hundreds of thousands of vehicles prone to this defect,” the class action lawsuit states. 

Vehicle owners claim GM is guilty of unjust enrichment and fraudulent concealment, among other things, and in violation of a number of state consumer protection acts. 

The vehicle owners want to represent a nationwide Class and Massachusetts, Michigan, Minnesota, New York and Wisconsin subclasses of all persons or entities who purchased or leased one or more of the affected GM vehicles.

Plaintiffs are demanding a jury trial and requesting injunctive relief along with costs, restitution and punitive, exemplary and treble damages for themselves and all class members. 

In related news, GM recalled more than 740,000 2010-2017 GMC Terrain vehicles last month over concerns the vehicles’ lower head lamps could present a glare issue due to a headlight housing defect

Have you purchased a GM vehicle containing a defective PCV system? Let us know in the comments! 

The plaintiffs are represented by E. Powell Miller, Sharon S. Almonrode and Dennis A. Lienhardt of The Miller Law Firm PC and Steve W. Berman, Jerrod C. Patterson and Anthea D. Grivas of Hagens Berman Sobol Shapiro LLP. 

The General Motors PCV System Class Action Lawsuit is Kiriacopoulos, et al. v. General Motors LLC, Case No. 2:22-cv-10785, in the U.S. District Court for the Eastern District of Michigan.


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240 thoughts onGM Class Action Alleges Automaker Fails To Disclose Engine-Related Defect

  1. Dwight Pusser says:

    I purchased a 2016 GMC Terrain about 2 years ago. Already had to spend several thousands of dollars on repair due to oil loss without any notice. Still having issues of oil loss and no mechanic can figure out where its going.

  2. Jamie says:

    I purchased a 2014 Chevy Captiva and my engine wouldn’t stop using oil which ultimately caused complete engine failure. Not happy at all I even file a complaint online because I knew I couldn’t be the only one having all these issues. I swear by Chevy but that vehicle should of never been sold by gm motors. Please let me know how to join this lawsuit I lost over $10,000 not happy

  3. Mike K says:

    2015 Equinox not even 100k miles, had to add 1-2 quarts of oil every week but always kept it full between changes. Timing chain broke today at 65mph on the highway and shut car off completely. Oil was still full from filling 2 days prior but added more weekly! GM knows about this issue through internal memos yet has done nothing to fix the problem for owners! Don’t have $6k to rebuild engine so now I’m stuck with a heavy hunk of scrap metal!

  4. Eric Wilson says:

    I bought a 2012 Buick Verano and replaced the engine. Now the new engine needs to be replaced. Please add me.

  5. Lexi says:

    How do we go about filing a class action lawsuit? I have a 2015 chevy Captiva Sport that has electrical problems with my vehicle, I have had the engine replaced due to excessive oil consumption which caused the engine to run hard, amongst many other dangerous issues. GM will not do anything about this and I think if enough of us come together we may have a fighting chance. They shouldn’t be allowed to pick and choose which vehicles get recalled it’s nonsense. How can they allow people to drive these cars and not acknowledge this is a defect? It’s absurd.

  6. Steve says:

    2016 terrain : pcv clogged and I had to replace the motor and catalytic converter $8000.

  7. Lori Shoemaker says:

    Please add me

    1. Lexi says:

      Please add me 2015 Chevy Captiva Sport

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