The emissions data scandal at a major affiliate of Japan’s Toyota Motor Corp has intensified, with revelations on Tuesday that data about some engines was falsified as far back as 2003 – more than a decade earlier than previously known.
News of the scandal caused shares of Hino, which is 50.1% owned by Toyota, to plunge almost 10% on Tuesday.
An investigative committee tasked by automaker Hino Motors Ltd blamed the scandal on an environment where engineers did not feel able to challenge superiors, in a rare criticism of corporate culture in Japan.
The committee, composed of lawyers and a corporate adviser, was set up by Hino this year after it admitted to falsifying data related to emissions and fuel performance of four engines.
Its findings, released on Tuesday, detail an inflexible atmosphere where it was difficult for staff to feel “psychological safety,” the committee said in a report.
A sense of past success on the part of management helped engender the culture, committee chairperson Kazuo Sakakibara, the former head prosecutor at the Osaka District Public Prosecutors Office, said.
“The magnitude of their past successes has made them unable to change or look at themselves objectively, and they have been unaware of changes in the external environment and values,” he told a briefing.
“The organisation has become an ill-organised one where people are unable to say what they cannot do.”
Hino’s president apologised to reporters and said management took its responsibilities seriously. The company said it would come up with a new corporate governance system within three months.
Recall Likely to Widen
The automaker said the committee found evidence of falsification stretching back as far as 2003, as opposed to the previously disclosed timeframe of around 2016.
The transportation ministry revoked the truck maker’s certification of the affected engines in March.
Hino has recalled close to 47,000 vehicles made between April 2017 and March this year, but the recall is likely to widen, the Nikkei business daily reported on Tuesday.
Hino has joined a string of Japanese automakers involved in improper emissions tests.
In 2018, the government said Mazda Motor, Suzuki Motor and Yamaha Motor had improperly tested vehicles for fuel economy and emissions.
Subaru and Nissan Motor were under scrutiny for the same reason the year before.
The accuracy of automakers’ emissions data was thrown into doubt in 2015 when Germany’s Volkswagen admitted it installed secret software in hundreds of thousands of US diesel cars to cheat emissions tests and that as many as 11 million vehicles could have similar software worldwide.
- Reuters with additional editing by Jim Pollard