I have a 2007 lexus is250 and when the headlights are on my passenger gear side light will just stop working. Happens in both bright and dims. If I switch lights off/on it'll work again for a minute but then it will just turn off again. Anyone have any ideas as to what the problem could be? Please help me out.

 

You need to replace your headlight

 

I have had nothing but issues with my headlight's!!! You can try to fix it, but it will be probably cheaper and easier to replace it.

 

You don't say whether you have halogen or HID (xenon) lights, but if the latter, it is very likely just a bad bulb. Swap the bulbs between sides, and if the problem jumps over to the driver side, you have confirmed that the bulb is bad. If the problem stays on the same side, it is probably the ballast.