Chrysler, run by Italy's Fiat SpA, said in a letter to regulators on Aug 2 that certain 2008 Grand Voyager, Town and Country and Dodge Grand Caravan vehicles were affected by the recall.
The automaker and the National Highway Traffic Safety Administration (NHTSA) said condensation from the heating and air conditioner could leak onto a sensor module. This could lead to activation of a warning light and inadvertent deployment of the air bag. Dealers in North America will replace the component free of charge.
There was a recall last November to replace a heating and cooling drain tube in those model vehicles to eliminate potential condensation.