The contact owns a 2011 Jeep Grand Cherokee. The contact stated while his wife was driving approximately 30 MPH she observed that the check battery light had illuminated. The contact stated that his wife had smelled a burning smell and returned to the residence. The contact stated that he started the vehicle and was checking the battery using a volt meter and he noted that it was only showing 12.1 volts. The contact turned the vehicle off and was returning tools to his workshop when he noted a burning smell. The contact opened the hood and observed a stream of white smoke emitted from the alternator and suddenly the alternator had burst into flames. The contact stated that he extinguished the flame using a garden hose and disconnected the battery terminals due to a clicking sound he heard coming from the alternator. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle had not been diagnosed or repaired. The contact had removed the alternator and wanted it to be examined. The contact had researched online and related the failure to NHTSA Campaign Number: 17V435000 (Electrical System). The manufacturer had been informed of the failure. The failure mileage was approximately 197,000.