General Motors has issued a recall for nearly 1 million of its sports utility vehicles in the United States because of defective airbag inflators that may explode during a crash.

The car maker submitted a safety recall notification on Friday for cars that were made in the 2014-2017 years and have airbag inflators from ARC Automotive Inc.

If you own an car that is part of the recall, your airbag inflator may be replaced at a dealership without charge.

The recall of airbag inflators made by ARC Automotive comes as federal regulators are demanding that the company recall 67 million of them because there is a risk they could explode and injure people. So far, two people have been killed in the US and Canada due to this problem.

One of the crashes that happened recently involved a Michigan woman who was killed after her car crashed as a result of another driver not paying attention. A police report said that metal shrapnel from the airbag inflator hit her in the neck.

The airbag on the front driver side ruptured on April 25th.

GM is taking this expanded field action out of an abundance of caution. They are doing it with the help of a third-party engineering firm. “GM remains committed to resolving this issue as quickly and safely as possible,” they said.

GM has been aware of two ruptures of airbag inflators made by its ARC (Automotive Retractable Cage) division in 2015, and it recently recalled 3,000 units.

The National Highway Traffic Safety Administration (NHTSA) has tentatively concluded that ARC’s front driver and passenger inflators are defective, after an eight-year investigation.

Stephen Ridella, director of the NHTSA’s Office of Defects Investigations, has written a letter warning about air bag inflators that wrongly inflate vehicles’ airbags. These inflators project metal fragments into car passengers, which can lead to death or injury.

ARC is saying that its design is okay and any problems are due to manufacturing issues that only happen in a small number of cases.

The company’s decision not to recall its product sets up a legal battle with the government.

“We don’t agree with NHTSA’s new request because there is no evidence that a defect exists,” ARC said in a statement Friday.