What you need to know about the Takata air bag recall

A recall of air bags made by Japanese auto parts supplier Takata Corp. now has the dubious distinction of being the largest in U.S. history.

The number of vehicles in the U.S. being recalled because of the defective air bags is doubling to 34 million, safety regulators said Tuesday.

Q: What is wrong with Takata air bags?

A: The driver and passenger-side air bags can inflate with too much force, blowing apart a metal canister and sending shards flying at drivers and passengers. The defect has caused at least six deaths and more than 100 injuries worldwide.

Q: Which automakers are involved and how many cars are affected?

A: Honda has the most vehicles equipped with Takata air bags. Dozens of models made by BMW, Chrysler, Ford, General Motors, Mazda, Mitsubishi, Nissan, Saab, Subaru and Toyota dating to the 2001 model year are also affected.

Q: How do I find out if my car is affected and, if so, what should I do?

A: If your car’s air bag is being recalled, you should receive a recall notice from the automaker. Automakers also have recall home pages with information for customers. Or, you can go to the government’s Takata page,, and key in your vehicle identification number, which normally is printed on the registration and stamped on the dashboard. It could take a few weeks or longer for the latest recalled vehicles to appear on the websites.

You can also call your dealer. Dealers will replace the air bags for free as parts are available.

Q: Will there be enough parts to get my car fixed?

A: At current production rates, it would take about 2 1 / 2 years for Takata to make the 33.8 million inflators needed to fix all the cars involved in the recall. Takata said Wednesday it has made 3.8 million so far. The company says it’s making 500,000 inflators per month with plans to produce up to 1 million per month by September. Honda, Takata’s largest customer, has lined up other companies to make replacement inflators.

Q: If parts aren’t available, am I in any danger if I drive my car?

A: That’s a tough question. Takata uses ammonium nitrate to create a small explosion that inflates the air bags. But in the air bags being recalled the chemical can explode with too much force, blowing apart the metal inflator canister. Takata says its tests show that it takes many years of persistently high humidity to cause the problem in a small number of inflators. But the U.S. government pushed for the nationwide recall as it continues to investigate the exact cause of the malfunctions. Honda is offering loaner cars to drivers until their cars can be repaired.