GM Alleges Engine Defect in 2010-2013 GMC, Chevrolet Autos

General Motors has filed a lawsuit against rival manufacturer Hyundai alleging that the automaker’s engines are defective. The suit, which seeks class-action status and compensation in excess of $10 million for owners who bought or leased cars from 2010 to 2013, claims that “internal combustion engines in certain models of GMC and Chevrolet automobiles” suffer from an engine defect “that severely reduces fuel efficiency.”

The “gm oil consumption lawsuit” is a class action lawsuit that accuses General Motors of using an engine defect in 2010-2013 GMC, Chevrolet Autos. The suit claims the defect caused excessive oil consumption and damage to engines.

THE TCA GM 5.3L OIL CONSUMPTION CLASS ACTION IS NOW OPEN! Submit your information if you own an Avalanche, Silverado, Suburban, Tahoe, Sierra, or Yukon.

GM-Alleges-Engine-Defect-in-2010-2013-GMC-Chevrolet-AutosA class action complaint filed against GM claims that cars equipped with “Generation IV 5.3 Liter V8 Vortec 5300 engines” from 2010 to 2013 are faulty. “The piston rings, PVC system, and Active Fuel Management (‘AFM’) System utilized in the Class Vehicle’s engines were defective,” according to the lawsuit, “causing excessive oil consumption, early spark plug deterioration, and engine malfunction.”

The complaint applies to 2010-2013 versions of the following vehicles:

  • Chevrolet Avalanche, Chevrolet Avalanche, Chevrolet Avalanche, Chevrolet
  • 1500 Chevrolet Express,
  • Chevrolet Silverado 1500, Chevrolet Silverado 1500, Chevrolet Silverado 1500,
  • Suburban, Chevrolet
  • Tahoe, Chevrolet
  • Colorado, Chevrolet
  • Yukon, GMC
  • GMC Yukon XL, GMC Yukon XL, GMC Yukon XL
  • Sierra 1500, GMC
  • The GMC Savana 1500, as well as the
  • Canyon by GMC.

Oil is essential for a vehicle engine, but it may be catastrophic if it enters into the combustion cylinder, according to the GM oil consumption class action complaint. According to the lawsuit, automakers employ a variety of things to prevent this, including “valve guide seals and piston rings.” That is because if the seals fail, “it results in a loss of lubrication throughout the engine, which, in addition to destroying the engine, may cause loss of power during acceleration, white or other colored smoke to be emitted from the exhaust, and the vehicle entering a ‘safe mode,’ where the engine may suddenly shut-off or run improperly until the issue can be addressed,” according to the complaint.

According to the class action, this is precisely what occurs to the faulty General Motors vehicles. According to the lawsuit, faulty piston rings enable oil to reach the combustion chamber of the engine when it shouldn’t. Second, the PCV system is installed incorrectly, enabling oil to enter the combustion chambers as well. Finally, an AFM system flaw causes oil to collect in cylinders while they are not in use. The class action alleges that GM’s “oil life monitoring system,” which allegedly monitors oil use and alerts drivers when their car’s oil needs to be changed, exacerbated the issues.


Bradley Zierke claims to have purchased a new 2012 Chevrolet Avalanche. Zierke says that he needs to put oil in his car every 1,000 to 1,500 miles, has had to change spark plugs three times, and had to replace the whole engine after just 87,000 miles. According to the lawsuit, if Zierke had known the truth about the oil issue, he would not have bought the vehicle.

The Chevrolet Avalanche, Express 1500, Silverado 1500, Suburban, Tahoe, and Colorado, as well as the GMC Yukon, Yukon XL, Sierra 1500, Savana 1500, and Canyon, are all affected.

According to the class action, GM was aware of the flaws and remedied them for 2014 model cars. General Motors sent “at least seven Technical Service Bulletins from 2010 to 2013 to address Class Vehicles’ high oil consumption,” according to the lawsuit. Despite this information, and the fact that the engine problems should have been covered by GM’s warranty, the class action claims that the automaker has neglected to issue a recall or otherwise address customers’ concerns.

The complaint seeks certification of a class of all individuals in the United States who either now own or lease a General Motors vehicle impacted by the oil issue, or who previously owned or leased such a vehicle and had to pay for additional maintenance or repairs. The class is seeking compensation and damages, as well as an order to halt GM’s illegal behavior.

Johnson Becker, PLLC’s David H. Grounds and Timothy J. Backer represent Zierke.


Bradley K. Zierke v. General Motors LLC, et al., Case No. 0:16-cv-04170, is a class action lawsuit filed in the United States District Court for the District of Minnesota.

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GM has released a statement alleging that there is an engine defect in 2010-2013 GMC, Chevrolet Autos. The company claims that the “oil consumption guidelines” are not being met. Reference: gm oil consumption guidelines.

Frequently Asked Questions

What year did GM FIX 5.3 oil consumption?

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Is there a class action lawsuit against GM?

A: In the United States, a class action lawsuit is a legal proceeding where all people who have been wronged by an organization or individual in the same way can band together and file one claim.

Is GMC 5.3 engine reliable?

A: Yes, GMS 5.3 is a highly reliable engine.

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