the battery light is on and it say charging sysem problem what could that be? on 2001 Cadillac DeVille DTS

the battery light is on and it say charging sysem problem what could that be?

by in Geneva, IL on June 05, 2013
1 answer
ANSWER by , June 05, 2013
Highly likey the alternator is faulty...best to have it tested to know for sure.