One problem related to hazard flashing warning light unit has been reported for the 2004 Porsche Cayenne. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Porsche Cayenne based on all problems reported for the 2004 Cayenne.
Water accumulated inside the hazard warning light lens compartment. Dealership was notified, but did not resolve the problem.
| Exterior Lighting problems | |
| Hazard Flashing Warning Light Unit problems | |
| Tail Light Switch problems | |
| Headlights problems |