In the latest Honda Airbag recall update for July the Japanese carmaker has increased the number of vehicles being recalled worldwide by a further 4.5 million.

The recall is for the problem announced previously with air bag inflators on the driver’s side that can kick in with too much force.

Authorities have liked the airbags to eight deaths in the US and Malaysia.

“Like other carmakers, we are investigating vehicles on the market in connection with this issue, and we found that some inflators have uneven gas density, which we worry could do some harm”, a Honda spokesman said.

A recent case that was brought into notice included an X-Trail sports utility vehicle, recalled twelve years after it was manufactured in April 2001, a Nissan spokesman said. The incident is Nissan’s first involving a faulty Takata airbag in Japan.

Nissan said the passenger side window was smashed and high-temperature fragments were sent flying into the dashboard. Fortunately, there was no passenger in the auto and the driver sustained light injuries, still unclear if they were coming from the Takata part.

Nissan and several rivals have recalled millions of cars globally because of a defect making Takata-made inflators explode and spray shrapnel. The latest wave of recalls was undertaken by the new company president, Takahiro Hachigo.

The problem? Airbags made by Takata could explode and send shrapnel through the vehicle.

Takata faces multiple class-action lawsuits in the United States and Canada as well as an American criminal investigation and a regulatory probe.