How hard is it to change the drivers side headlight.is this something I can do or does it have to go to the dealer.thanks jimbo

 

Your profile only mentions your IS. Some RX's came with HID headlights and some regular ones. Which type does your RX have?

 

Do you mean unbolt the headlight and bolt a new one in? Or do you mean change a bulb in the headlight. Quite a bit of difference, but if man built it (and I'm pretty sure he did), you should be able to change it, whichever it is.