I'm not sure that I would ever use it, but the light that goes on when you open up the interior mirror doesn't work. The passenger side is fine. Bulb replacement or a bad switch in the visor? Any suggestions? Thanks

 

try switching the passenger bulb into it and see if it works?

 

I guess I should have thought of that myself! Thanks for the tip - it was the bulb.

 

change it to the led t10 bulbs