The expanded recall comes one day after Honda confirmed the 12th USA death - and 17th worldwide - tied to a faulty Takata air bag.
In a series of statements to U.S. publication The Detroit News, the company said the incident occurred in Hialeah, Florida, in June 2016 and involved a male that was using a hammer while the vehicle's ignition was switched on.
The Japanese automaker said the 2001 Accord in Hialeah was included in multiple recalls and a safety campaign related to a defective airbag inflator on the driver's side.
It remains unclear if the cause of death was the ruptured inflator or the deployed airbag coming into contact with the hammer, according to Honda.
Honda (HMC) said Monday the death of an individual in Florida past year is the 11th fatality connected to defective airbag inflators made by Takata.
The company that makes them is now adding nearly 3-million cars to its recall.
The death from the faulty inflator brings the US total to 12 and the worldwide total to 17.
Honda stressed Monday that it has enough replacement inflators to fix every Honda and Acura with a recalled Takata airbag (particularly the Alphas) - for free.
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The four children killed were identified as Isabela Martinez, 10; Dacota Romero, 7; Dillan Romero, 4; and Axel Romero, 2. Pihera said Martinez was cooperative with police investigators, but the motive behind the crimes is not being released.
There are already 68 million Takata inflators already set to be recalled through 2019 because they might explode after a crash and could cover vehicle occupants with metal pieces.
Honda said it was recently made aware of the death.
Takata Corp.'s air bag inflators can explode with too much force, hurling shrapnel into drivers and passengers.
Honda said the vehicle's registered owners had received at least 12 recall notices but never got recommended repairs. Owners can go online and subscribe to Honda service manuals and find out proper procedures for many repairs. The twist this time, however, is that the incident didn't occur during a crash, but while the vehicle was in a shop being repaired.
Honda urged owners who have received recall notices to get repairs made as soon as possible, especially those with the most risky type of inflator.
Green, who teaches at Harvard, has served as a mediator in many major cases, including the US Microsoft antitrust case, and now serves as a Justice Department monitor overseeing the implementation of billions of dollars in consumer relief linked to settlements with banks stemming from the 2007-2009 financial crisis.
"On average, more than 500 recalled Honda and Acura vehicles are receiving estimates and triggering notifications through this system every day", Honda wrote.