One problem related to alternator/generator/regulator has been reported for the 1999 Volvo S80. The most recently reported issues are listed below.
When vehicle is idling all lighting on the vehicle(interior and exterior) slightly dims every couple seconds. An annoyance the dealer(annapolis Volvo) says is an anomaly that is inherent in this model and cannot be fixed. I disagree and am confident that a $38k car can be made without flickering lighting. Dealer refuses to address this further. Calls to Volvo USA went unreturned. All of the 6 other cars I've owned don't have flickering lighting.
| Electrical System problems | |
| Ignition Module problems | |
| Underhood Wiring problems | |
| Software problems | |
| Wiring problems | |
| O2 Sensor problems | |
| Battery problems | |
| Alternator/generator/regulator problems |