NHTSA 14V-634: Chrysler has decided that a defect, which relates to motor vehicle safety, exists in certain 2011 through 2014 model year Dodge Challenger, Dodge Charger, Dodge Durango, Chrysler 300 and 2012 through 2014 model year Jeep® Grand Cherokee vehicles equipped with a 160 amp alternator. The problem is... The alternator diodes in these vehicles may experience a rapid failure. Variability in the failure mode ranges from no output, reduced output, and/or a fully shorted to ground condition. Depending on the alternator failure mode and timing, vehicle electrical system voltage may drop to critical levels, disabling systems such as Antilock Brake System (ABS), Electronic Stability Control (ESC), Electronic Control Module (ECM), and/or the Central Body Controller (CBC). The driver will have limited or no detection of the alternator failing, which can result in vehicle shutdown while driving.