Ram Visual System Recall #2013156

On certain vehicles, the coolant bypass valve may stick in a position that does not allow coolant flow to the heater core.

Loss of windshield defrosting and defogging functions may, under certain driving conditions, compromise the driver’s ability to see the road and its users, which could result in a crash causing property damage and/or personal injury.

Correction: Dealers will inspect and, if necessary, replace the coolant bypass valve, and reprogram the powertrain control module with updated software.