This is across the board. Auto makers were forced to make changes to quickly. They weren't ready and able to comply with the strict regs.
Here's a short read.
Add General Motors to the growing list of automakers facing accusations they tried to thwart regulators by installing software designed to cheat emissions tests.
A lawsuit seeking class-action status, filed today in federal district court in Detroit, accuses GM of using so-called defeat devices in two models of heavy-duty diesel trucks, echoing similar claims against Volkswagen and Fiat Chrysler Automobiles.
GM is denying the allegations.
"These claims are baseless, and we will vigorously defend ourselves," the company said in a brief statement. "The Duramax Diesel Chevrolet Silverado and GMC Sierra comply with all U.S. EPA and CARB emissions regulations."
The reference was to the U.S. Environmental Protection Agency and the California Air Resources Board, which has set the toughest vehicle emission standards in the country.
The lawsuit filed by the Hagens Berman law firm of Seattle alleges the trucks emit nitrogen oxide at two to more than five times the legal limit and pollute more than the trucks' gasoline-fueled counterparts. Robert Bosch, the company that made GM's electronic diesel controls, is also named as a defendant.
Bosch, which has its North American headquarters in Farmington Hills, said it takes the allegations seriously.
"Bosch is cooperating with the continuing investigations in various jurisdictions and is defending its interests in the litigation," according to a statement read by spokeswoman Linda Beckmeyer. "As a matter of policy and due to the sensitive legal nature of these matters, Bosch will not comment further concerning matters under investigation and in litigation."
The company has also been mentioned in a federal emissions lawsuit against Fiat Chrysler, but it is not a defendant in that case.