GM says its Takata air bag inflators are safe; government disagrees

General Motors Co. on Thursday announced its largest recall of Takata air bag inflators yet, but said the parts are unique to its trucks and SUVs and don’t pose a safety risk.

The government’s highway safety agency disagrees.

The National Highway Traffic Safety Administration said GM, the nation’s biggest automaker, must proceed with two recalls adding up to 1.9 million trucks from the 2007 through 2011 model years.

The recalls were unveiled along with those from six other automakers, totaling 4.4 million vehicles. They are part of the first round of a massive Takata recall expansion announced in May. A total of 17 automakers are adding 35 million to 40 million inflators to what already was the largest auto recall in U.S. history.

Takata inflators can malfunction and spew shrapnel into drivers and passengers when exposed to humidity and repeated hot-and-cold cycles.

GM said it would begin the recall process in cooperation with the NHTSA even though it doesn’t believe inflators in its trucks are unsafe.

The automaker said that no inflators in its trucks have ruptured during an estimated 44,000 crashes or in testing of returned inflators. It also said the inflators were uniquely made for GM trucks and SUVs with greater venting and machined steel end caps.

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“We don’t have any evidence at this point that these inflators aren’t working as designed,� spokesman Tom Wilkinson said. He wouldn’t say whether GM is trying to avoid recalls, which could be expensive for the company.

But NHTSA spokesman Bryan Thomas said GM has filed paperwork declaring the inflators defective and that they will be recalled. “The science clearly shows that these inflators become unsafe over time,� he said.

The GM resistance, although good-mannered, is surprising given that the company was fined and is still being monitored by the NHTSA for covering up faulty small-car ignition switches two years ago.

Documents detailing the latest round of recalls were posted Thursday by NHTSA. They include recalls from Volkswagen, Ford, Daimler Vans, BMW, Jaguar-Land Rover and Mercedes-Benz. Recalls from eight other companies were posted last Friday.

The documents cover passenger air bags mainly in older models in states with high temperatures or humidity.

Recalls related to Takata in this round now total 16.4 million vehicles. The recalls are being phased in during the next three years.

Takata uses ammonium nitrate to create a small explosion that inflates air bags in a crash. But the chemical can deteriorate over time when exposed to high heat and humidity and can blow apart a metal canister, spewing hot shrapnel. The inflators are responsible for at least 11 deaths and more than 100 injuries worldwide.

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Takata agreed to the recall expansion May 4, and more recalls are to be announced later. The recalls are being phased in because of a lack of available replacement parts. Models from 2011 or older in high heat and humidity areas will get first priority, followed by 2008 and older models in Southern-tier states, then 2004 and older models in the rest of the country. Research has shown that it takes at least six years for the ammonium nitrate to deteriorate.

On Wednesday, a Senate report found that Fiat Chrysler, Mitsubishi, Toyota and Volkswagen are selling new vehicles with Takata air bag inflators even though the devices are likely to be recalled within a few years.

Because the recalled models vary by state and age, officials say the best way to see if your car is affected is to go to https://vinrcl.safercar.gov/vin/ and key in the vehicle identification number. It may take several weeks for all the newly recalled vehicles to be entered into the database.

Here are models covered by Thursday’s recalls:

GENERAL MOTORS: Certain 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL. 2007-2011 Cadillac Escalade, Escalade ESV and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban and Tahoe, GMC Sierra 1500, Yukon and Yukon XL vehicles. 2009-2011 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500.

FORD: Certain 2007-2011 Ford Ranger pickups; 2006-2011 Ford Fusion, Mercury Milan and Lincoln Zephyr/MKZ vehicles; 2007-2010 Ford Edge, Lincoln MKX vehicles; 2005-2006 Ford GT vehicles and 2005-2011 Ford Mustang.

VOLKSWAGEN: Certain 2004-2008 Audi A4 and 2005-2011 Audi A6 cars.

DAIMLER VANS: Certain 2010-2011 Mercedes-Benz Sprinter, 2009-2011 Freightliner Sprinter, and 2009 Dodge Sprinter vans.

JAGUAR-LAND ROVER: Certain model year 2007-2011 Land Rover Range Rover SUVs and 2009-2011 Jaguar XF cars.

BMW: Certain 2007-2011 X5 xDrive30i, X5 xDrive35i, X5 xDrive48i, X5 xDrive50i and X5M vehicles. 2009-2011 X5 xDrive35d, 2008-2011 X6 xDrive35i, X6 xDrive50i and X6 M vehicles, and 2010-2011 X6 ActiveHybrid vehicles.

MERCEDES-BENZ: Certain 2008-2011 C300 Sedan, C300 4matic Sedan, C350 Sedan, C63 AMG Sedan vehicles. 2010-2011 GLK350, GLK350 4-Matic and E350 Coupe vehicles. 2011 SLS AMG, E350 Convertible, E550 Coupe and E550 Convertible vehicles.

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