One problem related to hazard flashing warning light unit has been reported for the 2000 Volvo S40. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Volvo S40 based on all problems reported for the 2000 S40.
Turn signals will stop working intermittently. When it happens neither lh nor lh turn signal will illuminate and neither exterior bulb nor dash indicator will illuminate. Turning on the hazard lights will jump start the turn signals to work again. Turn signal relay (under dash near driver kick panel) has been replaced with no improvement. Used to only happen on very hot days. Now happens regardless the ambient temp.
| Headlights problems | |
| Headlight Concealment Device problems | |
| Hazard Flashing Warning Light Unit problems | |
| Tail Light problems | |
| Exterior Lighting problems | |
| Turn Signal problems | |
| High/low Beam Switch problems |