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Takata says it is subject of US criminal probe on air bags

A Takata employee sews an airbag at Takata's current crash-testing facility in Auburn Hills, Michigan.
Bill Pugliano | Getty Images
A Takata employee sews an airbag at Takata's current crash-testing facility in Auburn Hills, Michigan.

Takata is the subject of a U.S. criminal investigation over defective car air bags that have been linked to five deaths, and executives from the Japanese company and its major client Honda Motor are expected to face congressional hearings in the coming week.

A federal grand jury in New York has subpoenaed Takata's U.S. unit to produce documents on the air bag defects, the company's Tokyo-based spokesman said on Thursday.

Read MoreUS opens probe into Honda reporting of Takata air bag failures

Separately, the U.S. Senate commerce committee scheduled a hearing next Thursday to solicit testimony from Takata executives on air bag defects, as well as from officials of the National Highway Traffic Safety Administration (NHTSA) on the vehicle recall process. Honda said it will also send a representative to testify before the Senate committee on Thursday.

Defective Takata air bag inflators have been found to explode with dangerous force in accidents, sending shards of metal into the vehicle.

An investigation by U.S. prosecutors in Manhattan into the Japanese safety-parts maker had been previously reported, but Thursday's statement is the first indication that a seated grand jury was seeking evidence. Takata disclosed the probe in a closed-door meeting with financial analysts, according to an account from one participant.

Adding production lines

A Takata spokeswoman in Tokyo said on Friday the company is preparing to add two new production lines at its plant in Monclova, Mexico, to make replacement air bag inflators - the explosive devices that allow air bags to inflate in a fraction of a second during a crash. A January start-up is planned for the new production lines in Mexico, the company said.

Takata said it could not disclose the scope of the capacity increase, but noted it had been planned before Honda's latest recall was announced.

On Thursday, Takata told analysts in Tokyo that it was making "constant improvements" to the chemical compound used in its inflators, but said they were not related to any defects or accidents.

Read MoreMore air bag recalls could test automakers' Takata ties

Since 2000, Takata has made more than 100 million inflators, according to industry estimates and company data. Since 2008, more than 17 million cars equipped with Takata air bags have been recalled, including over 11 million in the United States.

CEO apologizes

In a statement posted Thursday on Takata's website, CEO Shigehisa Takada apologized to customers and shareholders for the recalls: "Our whole company will strengthen our quality management structure and work to prevent an incident from occurring again," he said.

Separately, Takata disputed a recent New York Times report that it had failed to tell federal regulators that it had found signs of air bag defects in secret tests in 2004 in Michigan.

The company said it believed the Nov. 6 story "was based on serious misunderstandings of the facts." It said it was testing air bags for tears to cushions in their modules, not for inflator ruptures, as reported.

Read MoreRecalls, uncertainty to push air bag maker Takata to wider loss

The latest fatality linked to Takata air bags, and the first outside the United States, was disclosed earlier on Thursday. Honda said the pregnant woman driver of a Honda City died in July in Malaysia after being hit by shrapnel from a Takata air bag.

All five deaths have been in Honda cars. The Japanese carmaker, Takata's biggest customer, widened its recall for the defective air bags by 170,000 vehicles globally, taking its total to nearly 10 million.