The recall focuses on the 2003 and 2004 model year cars.
Toyota says circuits that control the airbag module could be damaged by electrical noise. This would then cause the pre-tensioners in the front airbags and seatbelts to activate. The company also says there has only been one reported injury due to the deployed airbag; but so far, no crashes or accidents have been reported.
Affected owners will be notified by mail. Engine noise filters will be distributed to Toyota dealerships across the US. Toyota says installation of the filters will take between 90 minutes to two hours.