The Fiat Chrysler Jeep Grand Cherokee and Suzuki Vitara diesel models both break emissions rules and must be modified or face a ban on sales across Europe, the Dutch road authority ruled on Thursday.
According to Reuters, the RDW authority, acting as the reference regulator for the European Union, said Jeep had developed a software fix and the authority had ordered the company to recall the model across Europe to roll it out.
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It added Suzuki had yet to find a credible solution for the Vitara.
"Suzuki must come with adequate improvement measures or the RDW will begin the process of revoking its European type approval," the RDW said in a statement cited by the news agency, adding it had also started the process of revoking approval for the Grand Cherokee as a "precautionary measure".
The RDW said it had found both the Grand Cherokee and Vitara had used "prohibited emissions strategies" that led them to emit higher levels of harmful nitrogen oxide (NOx) on the road than under testing conditions.
Dutch state secretary for infrastructure, Stientje van Veldhoven, said in a letter to parliament she would inform prosecutors of the RDW's findings, the Reuters report added.
