GMC C15 1991 car safety problem was reported on May 12, 1996.GMC C15 1991, manufactured by GENERAL MOTORS CORP. had a problem with ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR . ENGINE FIRE, SUSPECTED TO HAVE STARTED WITH ALTERNATOR. *AK.Vehicle was on fire. Gmc C15 1991 problem was reported in CHANDLER, AZ. Vehicle was not using Cruise Control. Report Your Car ProblemGo Top