The company said there were no reports of accidents or injuries related to the issue, but 36 incidents of overheating and an undisclosed number of fires.
The company, a unit of Fiat Chrysler, said it discovered the problem due to warranty claims and found exposure to moisture from rain, snow, car washes or beverage spills could cause a short circuit. Affected are certain Dodge Grand Caravan and Chrysler Town & Country minivans from model years 2010 through 2014.
An estimated 644,850 were sold in the United States, 106,980 in Canada, 8,009 in Mexico and 20,638 elsewhere.
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