One problem related to wiring has been reported for the 2001 Volvo S80. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Volvo S80 based on all problems reported for the 2001 S80.
Consumer states that the design of the battery wiring is not correct, the battery is located in the trunk and the wires that lead to the engine run underneath the driver side seat and it can be dangerous to have the wire there. Contacted dealer and the dealer is not willing to do anything.