One problem related to other fuel system tank assembly has been reported for the 2002 Cadillac Seville. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Cadillac Seville based on all problems reported for the 2002 Seville.
This is a continual problem. Once the fuel gauge gets to approximately half tank, the fuel gauge does not read correctly. When you go around a curve or stop/go, the gauge goes to almost half full, and then fluctuates constantly. Thus you never really know how much fuel is remaining.