The vehicles may have an electronic control unit that does not have adequate protection against electrical noise that can occur in crashes, which could lead to incomplete or non-deployment of the airbags. It could also impede the operation of seat-belt pretensioners.
The U.S. National Highway Traffic Safety Administration (NHTSA) in April expanded a probe into 12.3 million potentially defective airbags covering a number of automakers, including the vehicles Toyota is recalling.
They were equipped with an airbag control unit initially produced by TRWAutomotive Holdings, which is now owned by ZF Friedrichshafen.
Hyundai, Kia and Fiat Chrysler previously issued recalls for more than 2.5 million vehicles with the TRW airbag control units in question that might not deploy in crashes.
When it recalled nearly 2 million vehicles for airbag non-deployments in 2016, Fiat Chrysler said it had reports of three deaths and five injuries that might be related to the defect.
Hyundai and Kia ultimately recalled more than 1 million vehicles for airbag non-deployment concerns in 2018. Hyundai and Kia in 2018 said they had reports of four deaths and six injuries in North America tied to the issue.
Toyota dealers will install a noise filter between the airbag control module and its wire harness if needed.
Font: Automotive News Europe