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In this photo illustration General Motors Company (GM) logo is seen on a mobile phone and a computer screen.
(Photo Credit: viewimage/Shutterstock)

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

  1. Brian Molaski says:

    I have a 2013 equinox with the 2.4 and had a clogged pcv in early 2022 due to the cold water resulting in a blown rear main seal. This past week, 6/6/23, my timing chain went causing internal damage resulting in the need for a rebuild or new motor.

  2. Barbara Carter-Blassingame says:

    I own a 2014 Buick Encore and take it for a catalytic converter program a few years ago, now they say it’s for the back. I have call and complained before I had 6 month in. Please add me to your list

  3. Susan Orr says:

    Please add me to this lawsuit! I have replaced ignition coils several times in the past few years! Stabilitrak problems for years! The engine oil problems, and the car had always ran horrible with problem after problems!! 2011 GMC Terrain SLT 3.0

  4. Douglas Grant says:

    I had the pcv issue 2 years or so ago on my way to work the car just started stalling I got there and found a huge puddle of oil under the vehicle no warning lights or anything I had oil as this vehicle used unusual amounts of oil I’m guessing from the oil consumption issue which supposedly was fixed but I know it wasn’t because my 2015 has that same exact issue so I filled my oil and it just kept dumping so I went across the street from my work to the auto repair and a week later was told it had blown the rear main seal . So I started researching and found this is an ongoing problem with the equinox since earlier years and still up to 2017 . How are they even still allowed to sell these without a recall ?The repair ended up costing me around $2500 I tried calling gm they said nothing they could do so I started looking for class action suits which I saw one had been filed but already awarded and only pertained to vehicles manufactured certain places . I have since had s co worker experience this problem he had a 2013 equinox and a friend who had s 2017 . Gm should be responsible for the hassle this has caused people they refuse to have it as a recall but this has happened to numerous people who are completely unaware of this issue as there is no recall . Please add me to this class action lawsuit

  5. Vicki Clevenger says:

    2016 equinox, stalls at idle, check engine light came on found out it had no oil at the dealers now awaiting the bad nees

  6. Lisa A Henderson Jones says:

    I have a 2005 GMC Yukon Del. I replace my engine in 2/20 with a spartan engine here it is 4/23 I need a new engine some place tell me if there is a recall on the DCTF engines for my car this is some crazy stuff. i bought this engine from Advance Auto in SC.

  7. Laura Garvey says:

    I have a 2017 Terrain. Not sure what the problem is. Burning oil. The dealer scammed us out of $3800 for a drive chain and oil pan.

  8. Eliseo Maldonado says:

    I own a 2015 Chevy Captiva and I’ve taken it to get fixed because it has had many major motor issues. I have taken it to different auto shops in my city and couldn’t get anything resolved and still can’t. The issues in the motor is causing the rest of the stuff that the motor does to stop functioning. I consider this fraud. I would like to request to be added to the lawsuit as I have put so much of my own hard-earned money into trying to fix these issues.

  9. Sarah says:

    I had this issue with 2015 equinox which resulted in full engine failure. I was under the warrenty in miles but iver given time frame. I still owed 7800.00 on this vehicle when it died. The chevy dealer estimated 10,500.00 to fix! Please add me to this lawsuit. I lived in Minnesota when I began having problems with this vehicle.

    1. Jeri Denise Sells says:

      I bought a 2011Buick Lacrosse. Began having pil consumption problems which lead to having .motor replaced after thousands of dollars of different repair work. Only 50 000miles were on the car when problems started

  10. Barbie Hyde says:

    Would love to be added to the law suit. We bought a 2013 Verano and last week it just stopped working while driving down the road. After having it looked at we were told it would have to have a new timing chain which was related to this class action suit. This car only has 138k miles and is now unusable. At this point do you fix it and risk it going bad again or try to figure out how to get something different. Wish money grew on trees.

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