The NHTSA meanwhile said in its own statement: "These vehicles may experience a heating and air-conditioner (HVAC) condensate leak from the HVAC drain grommet onto the occupant restraint control module, which can lead to the illumination of the airbag warning light and a potential inadvertent airbag deployment without warning. An inadvertent airbag deployment could result in injury to the seat occupant in front of the deploying airbag and/or a vehicle crash."

Chrysler engineers have determined that the printed circuit board in ORC modules previously exposed to moisture could delaminate over time, despite the elimination of the source of prior moisture. This potential delamination could lead to a disruption in the circuitry and compromise airbag performance.

Chrysler reports it is unaware of any accidents or injuries related to the condition in vehicles that have had the prior recall completed. “Despite the lack of field reports, we believe it is in the best interest of our customers to replace these modules to ensure the proper functionality of the minivan’s advanced safety system,” said David Dillon, Head of Product Investigations and Campaigns.

Most of the vehicles involved are sold in the United States; there are also 50,251 vehicles in Canada; 3,748 vehicles in Mexico, and 13,633 export models. Chrysler will begin sending letters to customers in September to schedule appointments with dealership service departments for a no-charge repair. Dealer service personnel will replace the ORC modules at no cost to the customer.