Skip to main content
  1. Home
  2. Cars
  3. News

Dieselgate 2.0? EPA claims Jeep and Ram also cheated on emissions

Add as a preferred source on Google

The United States Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) have accused Fiat-Chrysler Automobiles (FCA) of selling diesel-powered light trucks that pollute more than they’re legally allowed to.

A statement published on the EPA’s official website explains that 104,000 trucks and SUVs sold in the U.S. over the past couple of years don’t comply with emissions regulations. The vehicles affected include Jeep Grand Cherokees and Ram 1500 EcoDiesels for the 2014, 2015, and 2016 model years. Both trucks are fitted with a 3.0-liter V6 engine. The Cummins-supplied, 6.7-liter straight-six diesel found under the hood of Ram’s heavy duty models isn’t targeted by the EPA’s probe.

Recommended Videos

According to the agency, FCA violated the federal Clean Air Act by not disclosing engine management software that alters emissions, allowing the six-cylinder oil-burner to emit more nitrogen oxide (NOX) than it’s allowed to. Importantly, the EPA pointed out it’s still investigating whether the software can be considered a defeat device like the one found in over half a million Volkswagen TDI models. FCA’s fines will largely depend on the EPA’s findings.

“Once again, a major automaker made the business decision to skirt the rules and got caught,” said CARB Chair Mary D. Nichols. “CARB and U.S. EPA made a commitment to enhanced testing as the Volkswagen case developed, and this is a result of that collaboration.”

The automaker doesn’t agree with the EPA’s accusations, and it asserts that its 3.0-liter V6 is fully compliant with all applicable regulations. The company has spent months providing the EPA with countless documents to prove that it has nothing to hide, and it has even proposed to implement a software fix that would curb tailpipe emissions in the Grand Cherokee and the 1500.

“FCA US intends to work with the incoming administration to present its case and resolve this matter fairly and equitably, and to assure the EPA and FCA US customers that the company’s diesel-powered vehicles meet all applicable regulatory requirements,” said the company in a statement. It also stressed that the engine management software singled out by the EPA is not a defeat device.

FCA could be fined $37,500 per offending vehicle if it is found guilty of violating the Clean Air Act. The company’s shares dropped by 14 percent immediately after the EPA’s announcement.

Stay tuned, we’ll update this developing story as more information becomes available.

Ronan Glon
Ronan Glon is an American automotive and tech journalist based in southern France. As a long-time contributor to Digital…
Polestar forced to exit the US market. It’s a shame we won’t see its refined design anymore
Boring EVs caught a break as Americans lose Polestar
polestar-3-ev

Polestar, the Swedish EV brand controlled by China’s Geely, has been denied authorization under the US Connected Vehicle Rule. As a result, it will not be able to sell vehicles in the US from the 2027 model year onward. The company is not disappearing from American roads overnight. Polestar says it will continue selling existing US inventory of the Polestar 3 and Polestar 4, and current owners will still have access to service support. But for future models, the door is effectively closing unless something changes.

Polestar 3

Read more
The Wild West era of robotaxis is starting to end
New global rules could replace patchwork regulation with stricter safety proof for driverless fleets.
Self driving car from Waymo

Robotaxi rules have entered their first global phase. A UN vehicle standards forum has adopted the first international framework for fully autonomous vehicles, giving driverless fleets a common safety baseline across major markets.

The move lands while robotaxis are expanding from test programs into a bigger commercial race. In the US and China, private fleets more than doubled in 2025 to 8,000 vehicles across more than two dozen major cities.

Read more
Google Meet finally lands on Android Auto, giving you one less excuse to skip a meeting
Android users can now join scheduled meetings and audio calls from their car's dashboard, catching up to what iPhone users have had for months.
Google Meet on Android Auto

Android Auto is finally getting Google Meet, months after the video conferencing app made its debut on Apple CarPlay. Android users can now pull up scheduled meetings and dial recent contacts straight from their car's display instead of reaching for their phone.

How it works behind the wheel

Read more