One problem related to headlight switch has been reported for the 2006 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Hyundai Elantra based on all problems reported for the 2006 Elantra.
Probable fire hazard: problem with frequent burning out of fuses to cigarette lighter (charger), some dash lights (back light for digital radio channel indicator) either no longer work or come off and on (ash tray light), ac and fan knobs--used to have to tap on them to get them to light, acted almost like a dimmer switch, sometimes had to tap several times to get to turn on, and sometimes knob back lighting on, but dim, and had to tap to get full power to bulbs, cd player overheating and stopped working--gives error message, (had similar cd player overheating with a 2003 Mitsubishi lancer I owned in early to mid-2000s, but cd player continued to work--elantra does not work more than a few seconds before ejecting cd. ) headlights burning out too frequently (including last time, when headlight removed on passenger side, light went out on driver's side as well. ) headlight had short and would come back on when I banged on lens with fist for several months, became more and more frequent until if finally burned out. Concerned of risk of electrical fire as engine area becomes hot. Note that clear-coat on hood over each headlight area and over fuse relay box area became yellow, then brittle, peeling off in past 6 months. Purchased vehicle in July 2008 or 2009? believe it had about 63,000 miles on it then--currently 138,000 miles. Airbag light says off when 200 lb. Husband seated on passenger side on occasion recently noticed in last year.