There is the dimmer switch, but I presume he wasn't talking about that.
Your car & year, ATX or MTX might be relevant, pls post.
I had headlight switch replaced under a recall on my '97. I had not experienced problems with it and forget why they recalled it.
Just to confirm; turn signals, hazard lights and your licence plate lights are OK? as well as PW and PL button lights on drivers door?


98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both