Xenon Headlamp Fuse Location? - Lexus Owners Club Feb 25, 2014Xenon Headlamp Fuse Location? Sign in to follow this . Followers 3. Lexus Model: IS250 SE Year of Lexus: 2007 Location: Sussex; Posted April 27, 2013. The headlight design of the is250 is such that the ballast in incorporated within the headlight. It's a real PITA to change and 90% of the people will find themselves buying new headlights.Headlight Problem - Lexus IS 250 / Lexus IS 250C ClubFeb 25, 2014Headlight Fuse - Lexus General MaintenanceJul 29, 2007See more results Replace a Fuse: 2006-2014 Lexus IS250 2008 Lexus IS250 2 V6 The video above shows how to check and change blown fuses in the engine bay of your 2008 Lexus IS250 in addition to where the fuse box diagram is located. Fuses should always be the first thing you check if your IS250 is experiencing electrical difficulties because they are relatively easy and inexpensive to change yourself.