I ran into this problem on my 2006 GS 430. Thanks to some posts on this forum I learned it was caused by the lights beginning to wear out. It started on my left bulb and then both started doing it. The info was a great help as originally I thought it was the ballasts. These are very expensive and a pain tin the butt to change.

Dealer price for new headlights was $230 each, Canadian Tires wanted $120, Rock Auto was about $100 each landed here and I found certified original Phillips replacements on Amazon.ca, with free shipping for $62 Canadian each. Pretty easy decision, they were here in two days.

Thanks to a YouTube video I changed the easier right light first, took me almost an hour. second light even though I would not see it well and did by feel took 5 minutes. Really is an easy do it yourself job. The big trick is there are TWO of the little spring tabs, one top, one bottom, that need to be release. Also, the bulb fits into the opening only one way. Look very carefully at the shape of the bulb connector and the raised parts on the bulb and you will understand. Also, pay close attention to the orientation of the bulb you are removing as this will help with the install.

One other word of caution, make sure the car is off for at least an hour so the high voltage in the ballast dissipates. These bulbs operate at something like 50,000 volts and that will definitely stand your hair up.

Hope others find this information useful.

 

How did u replace them? Did u need to remove the front bumper?