Officials link at least eight deaths and two severe injuries to substandard parts installed after earlier crashes.
WASHINGTON — The National Highway Traffic Safety Administration on Jan. 13 issued an urgent warning after two more drivers died in December when replacement air bag inflators ruptured during crashes, propelling metal fragments into vehicle cabins. The inflators were made in China and are suspected of being illegally imported into the United States.
The alert marks an escalation in a months-long inquiry into low-cost replacement inflators installed in used vehicles after earlier wrecks. Investigators say the failures are linked to components produced by Jilin Province Detiannuo Automobile Safety System Co., also known as DTN. NHTSA is working with law enforcement and state regulators as it tracks distribution networks and repair shops that may have used the parts. The agency said it has documented a growing cluster of otherwise survivable crashes turning fatal, underscoring the risk to buyers of repaired vehicles and the repair industry that installed the inflators.
According to the agency, at least eight drivers have died and two others sustained serious injuries in 10 known crashes since 2017. All involved vehicles that had original air bags replaced after previous collisions, including certain 2017–2019 Hyundai Sonata sedans and Chevrolet Malibu models. In the recent December incidents, inflators ruptured on impact and sent large metal fragments toward the driver. “These are substandard inflators that over-pressurize and explode even in moderate crashes,” an agency official said. NHTSA said the cases remain under active review and the tally could grow as investigators verify additional crash reports and examine salvage and repair records.
Officials said the inflators at issue were not supplied by automakers as original equipment and were not covered by existing recall campaigns. Instead, they appear in the replacement market after a vehicle has been in a prior crash and had its air bags deployed. Records obtained by investigators show the parts were imported and distributed through third parties, often without clear paperwork identifying the manufacturer. The agency has opened a defect investigation focused on DTN inflators and is coordinating with federal partners on potential customs and import violations. It remains unknown how many replacement kits entered the U.S. or which shops installed them. Automakers whose vehicles appear in incidents said they are assisting investigators and emphasized that their factory-installed air bags meet federal standards.
Air bag ruptures have drawn scrutiny before, most notably during the Takata crisis that led to tens of millions of recalls. But regulators said the current cases differ: they involve aftermarket components installed after repairs, not factory systems. Safety experts noted that used-car shoppers and collision centers often face cost pressure when sourcing replacement parts, a dynamic that can allow substandard components to enter the supply chain. Records from state oversight bodies and trade groups in recent years have warned about counterfeit air bag modules and inflators offered online, including units advertised without verifiable testing or certification.
Investigators outlined next steps that include tracking shipment records, interviewing repair facilities, and inspecting vehicles with prior air bag deployments. The agency has scheduled briefings with state motor vehicle agencies and expects to provide an update on its engineering analysis this winter. If officials determine a safety-related defect and traceable population, they could order recalls, seize inventory, or coordinate criminal referrals tied to illegal importation. No formal recall tied to these replacement inflators has been announced as of Jan. 26, and officials did not provide a population estimate, citing the ongoing probe.
Communities touched by the cases described abrupt, violent failures. Tow operators and collision technicians in several states said they have seen steering-wheel modules with fractured metal housings and torn inflator casings following relatively routine crashes. “It looked like a small grenade went off in the driver’s face,” said a Midwestern body shop manager who reported a suspected inflator rupture to state authorities last year. In the Washington region, consumer advocates said they have heard from families seeking documentation on prior air bag replacements when purchasing used cars. Automaker representatives said their dealer networks were instructed to cooperate with investigators and to verify parts sourcing in recent repairs.
As of Monday, the investigation remains active with federal and state agencies reviewing crash evidence and parts shipments. Officials said they plan to release further details on potential affected parts and distribution channels in the coming weeks.
Author note: Last updated January 26, 2026.