For over 15 years faulty airbag recall by Takata have failed to complete fixing of Takata airbag presumed to be deadly.
The slow completion rate comes even though the National Highway Traffic Safety Administration began coordinating the recalls and phasing them in two years ago.
Before that, the automakers were obtaining parts and distributing them on their own. Normally automakers fix 75 percent of vehicles within 18 months after the recall is announced.
The Takata airbag recall is the highest recall in history with 69 million inflators in 42 million vehicles after Takata used ammonium nitrate to create a small explosion and fill air bags quickly in a crash.
However, the chemical can deteriorate when exposed to high humidity and temperatures and burn too fast, blowing apart a metal canister designed to contain the explosion. That can hurl hot shrapnel into unsuspecting drivers and passengers. At least 19 people have been killed worldwide and more than 180 injured.