One problem related to tail light has been reported for the 2004 Suzuki XL7. The most recently reported issues are listed below.
The contact states when the automatic lights were on and the contact went from daylight to night the headlights came on, but the tail lights will not come on. This happened consistently. The tail lights will not come on unless he turned them on manually from the switch. The dealership told him that all of the xl 7s were the same way.