I also had one go out and got a new bulb for $3, one piece of advice, if you are changing one, buy two and change them both at teh same time, I only did one and the new one is brighter than the other side now and it really annoyed me, so I went back and got another one and did the same process again, save yourself the headache and just change them both at teh same time.
Also additional note, make sure to remove the green plastic casing on the bulb if you buy from the stealership, be careful not to get finger prints on the bulb, it will burn out sooner due to oils in your skin.