One problem related to headlights has been reported for the 2004 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Nissan Titan based on all problems reported for the 2004 Titan.
Headlight switch doesn't have enough resistance to rotating. I have turned off headlights several times when signaling a lane change or using dimmer switch.