Subaru is recalling 633,842 vehicles for an issue relating to accessory puddle lights that illuminate the street near the front and rear doors.

The Problem: The accessory puddle lights on certain Subaru Forester, Legacy, Outback, and Tribeca models may develop a short circuit when the light itself or the connector is exposed to an “electrolytic moisture source” such as road spray with salt on it. A short circuit of the puddle light system could generate heat that might melt the plastic, leading to smoke or a fire.

The Fix: For Subaru owners with the accessory puddle lights, dealerships will install an additional fused harness. The recall is set to begin in February; owners may contact Subaru at 1-800-782-2783.

Number of Vehicles Potentially Affected: 633,842 Subarus. 2009-2012 Subaru Forester, 2010-2011 Subaru Legacy, 2010-2011 Subaru Outback, 2006-2012 Subaru Tribeca

Source: NHTSA