GM Faces Lawsuits over Alleged Chevy Silverado and GMC Sierra Duramax Diesel Emissions Cheating


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In May 2017, a class action lawsuit was filed against GM on behalf of drivers of the affected Chevy and GMC diesel trucks. The lawsuit accuses GM of emissions cheating involving GMC and Chevy diesel truck models. The vehicles affected by GM’s alleged emissions cheating include the 2011-2016 Chevy Silverado 2500 HD and 3500 HD Duramax diesel and the 2011-2016 GMC Sierra 2500 HD and 3500 HD Duramax diesel models. If you own or lease one of these vehicles, you may qualify to file a lawsuit.

General Motors is facing allegations of emissions cheating involving GMC and Chevy diesel truck models. Lawsuits filed against GM allege that the company installed emissions defeat devices on GMC Sierra and Chevrolet Silverado Duramax diesel models to hide the excess emission levels of these trucks from drivers and regulators.

The vehicles affected by
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GM’s alleged emissions cheating include the 2011-2016 Chevy Silverado 2500 HD and 3500 HD Duramax diesel and the 2011-2016 GMC Sierra 2500 HD and 3500 HD Duramax diesel models. Drivers who own or lease one of these truck models paid about $5,000 more for their vehicle than comparable gasoline models. However, recent tests have revealed that these vehicles fail to offer the performance and environmental benefits advertised by GM.



Problems with the GMC Sierra and Chevy Silverado diesel models were discovered when emissions tests were performed on these trucks. The tests found that the affected trucks released levels of nitrogen oxide (NOx) that were much higher than the EPA-allowed maximum or the emissions levels marketed by GM.

When GM designed the GMC Sierra and Chevy Silverado diesel models, the company made design modifications to the vehicles in order to boost their performance. But because these performance enhancements would cause the vehicles to exceed federal emissions requirements, the lawsuits allege, GM equipped its GMC Sierra and Chevy Silverado Duramax trucks with defeat devices designed to conceal the excess emissions during testing.

Lawsuits Filed Against General Motors

In May 2017, a class action lawsuit was filed against GM on behalf of drivers of the affected Chevy and GMC diesel trucks. The lawsuit alleged that people who purchased or leased one of these vehicles were overcharged by GM for performance and environmental benefits that the trucks failed to deliver.

General Motors is the latest automaker to facing litigation over allegations of emissions cheating on vehicles sold in the U.S. In 2016, Volkswagen agreed to pay $15 billion to settle allegations stemming from the Dieselgate scandal that it had installed emissions cheating devices on millions of VW, Audi, and Porsche diesel models sold in the U.S. and Europe. Emissions cheating lawsuits have also been filed against Audi, Fiat Chrysler, and Mercedes over allegations of emissions cheating involving vehicles sold by these companies.

If you own or lease a 2011-2016 GMC Sierra or Chevy Silverado 2500 HD and 3500 HD Duramax diesel model, you may qualify to file a lawsuit over GM’s alleged emissions cheating. The first step in taking legal action is to consult with an experienced emissions litigation attorney to determine if you are eligible to file a case.


ABOUT THE AUTHOR: Charles Miller
Charles Miller is an experienced litigator practicing in the areas of products liability, personal injury, and complex commercial litigation. Mr. Miller has successfully handled more than 100 pharmaceutical product liability cases involving deaths caused by defective medication patches containing the drug fentanyl. Mr. Miller has also successfully handled many complex commercial cases.

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Disclaimer: While every effort has been made to ensure the accuracy of this publication, it is not intended to provide legal advice as individual situations will differ and should be discussed with an expert and/or lawyer.For specific technical or legal advice on the information provided and related topics, please contact the author.
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