One problem related to headlights turn off while driving has been reported for the 2003 Ford Windstar. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Ford Windstar based on all problems reported for the 2003 Windstar.
Started having wiper issues (intermittent did not work) randomly for a couple weeks, then headlights went out on highway at night with no other cars, first for a couple seconds off then on then off for good after a few more seconds. After another 10 min or so they went back on and stayed on. Also wipers did not work, or radio, windows and door locks. Another time during heavy rain in daytime the system failed again, wipers went off. This was on busy highway. Luckily they went on again after 10s and I was able to see and pull over. Very scary. Happened off and on again. Turned out forward control module was bad. Dealer replaced one I got from junkyard, no more problem.