Vehicles Affected: Approximately 75,000 model-year 2007-13 Ram 2500 and Ram 3500 pickup trucks, and Ram 3500, 4500 and 5500 chassis-cab models
The Problem: Certain alternators supplied to the company may have faulty diodes that can wear out sooner than expected due to frequent load cycling at or near maximum amperage, especially in hot ambient climates or when conditions are consistent with fleet-vehicle usage. The resulting failure could lead to an engine stall or vehicle fire, increasing the risk of injury in a crash.
The Fix: Dealers will inspect and replace the alternator for free.
What Owners Should Do: Ram manufacturer Fiat Chrysler Automobiles did not immediately announce an owner-notification schedule. Owners can call the automaker at 800-853-1403, the National Highway Traffic Safety Administration's vehicle-safety hotline at 888-327-4236, or go to www.safercar.gov for more info.
Need to Find a Dealer for Service? Go to Cars.com Service & Repair to find your local dealer.