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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. John Ryan says:

    My 2014 Chevrolet Equinox also had a frozen PCV valve and I lost my rear main seal, pistons,rings, and piston arms. The total bill came to almost 5300.00. I also had been reporting an oil consumption problem to my dealership and they found metal fragments in my oil. I had a lifetime warranty with CNA but the geniuses there said oil consumption is normal for your car. EXCUSE ME BUT I DON’T HAVE A 2 CYCLE ENGINE! If anyone can refer me to the attorneys handling this case I would like to file as well.

  2. Lisa says:

    Is it possible to get in the lawsuit? $7400 second timing chain and they just won’t admit.

  3. Kassidy Canova says:

    I was sold a used 2014 Buick Verano this time last year. I found out today that my engine has failed due to an oil consumption issue with the engine that GM has been aware of for years. I was not informed of this issue when buying my car. I am now stuck between getting a new engine for $7k or paying off the $12k owed. I am disgusted, and will have a very difficult time financially either way. Please let me know how I can get in on the class action lawsuit. I feel completely cheated.

  4. Nicole says:

    2015 AWD Equinox LT

  5. Jacqueline A Barkley says:

    I purchased and paid for a 2011 Buick Regal. It burns oil faster than a truck would. I’ve had it looked at and was referred by a credited mechanic to contact GM it is definitely in that group of vehicles that should have been recalled.

  6. Stephanny Brown says:

    GMC Terrain 2014

    1. Stephanny Brown says:

      Purchased in 2015, have had nothing but problems. In 2019 two weeks after an oil change it had completely ran out of oil without me knowing it. No warning lights. Took it to the dealer I purchased from and I had Bent a piston and burnt the timing chain up. $3800 later it was fixed….temporarily. It continues to burn massive amounts of oil and I know now to monitor it regularly. The engine light comes on randomly and now the stabil track and low brake fluid light. Brake fluid is fine I checked it. I’ve had to keep the vehicle bc I owe more than it is worth due to the cost of repairs I have incurred. Please help!!!

  7. Stephanny Brown says:

    I have a 2014 GMC Terrain. Has caused nothing but problems! In 2019, about two weeks after an oil change, it had completely ran out of oil without my knowing. No warning lights no nothing. Bent a piston and burnt up the timing chain. Took it to the dealer I purchased from and after $3800 it was fixed. But not really. It still consumes massive amounts of oil and I have to monitor it daily. Now the engine light comes on randomly, stability track light and low brake fluid….I lose my rpm’s on occasion as well. Once I restart the engine most of the time rpm’s return. I’ve had to keep the vehicle bc I owe more than it is worth bc of all the repairs done. Please help!!!!

  8. Annie Caldarazzo says:

    I have a 2014 Cadillac Escalade V8 that currently has catastrophic engine failure…so the engine needs to be replaced…when we purchased this car it had 72,000 miles on it and ran perfect until one day the check engine light went on… then boom my mechanic told me my engine was shot…GM really screwed us all… now we are out 9k for a new engine…🤮 I would love to be added to this class action lawsuit

  9. Enocras Williams says:

    2014 cruze had that issue how to repair myself actor Chevy dealer charge me $600 to tell me what I already knew I would like to join this class

  10. Patricia Wallace says:

    add me to list

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