The U.S. National Highway Traffic Safety Administration said on Monday that it will look into whether Honda failed to report deaths or injuries involving airbags that are part of a federal review.
Honda was given three weeks to get back to answer regulators detailed questions about how it reviewed and logged accident reports for more than a decade, according to Reuters.
The order, which includes 34 points, must be answered under oath.
"Honda and the other automakers are legally obligated to report this information to us and failure to do so will not be tolerated," NHTSA Deputy Administrator David Friedman said in a statement, according to Reuters.
NHTSA said that it was specifically looking into air bag malfunctions, in a statement on Monday.
"NHTSA has received information indicating that [Honda] failed to report incidents involving Takata air bags," the agency said in a statement. "NHTSA is also concerned that Honda's reporting failures go beyond the Takata incidents."
Honda has contracted a third-party audit of potential inaccuracies and "will soon share" its findings with NHTSA, according to Reuters.
Federal regulators in June asked automakers for assistance identifying suspect air bags made by Takata Corp, Honda's biggest supplier of the device.
There is a chance the air bags and inflators can explode with excessive force and spray metal shards into vehicle occupants.
Ten global vehicle manufacturers that use Takata air bags have recalled more than 10 million cars in the United States since 2008, according to Reuters.
More than 17 million vehicles worldwide have been recalled to replace inflators that have been linked to at least four deaths and a number of serious injuries.
Takata announced last week that it was considering booking a quarterly charge of 2-3 billion yen ($19-$28 million) to cover the cost of additional recalls of vehicles that might have defective airbags.
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