I've managed to change mine to some white LED's (the photo makes it seem a bit more blue than it is). Since I had to access the wiring for the parkers when I installed my HID's (for the relay circuit), I though I may as well open up the other side and swap the bulb there. Accessing it is kind of annoying, but if you change it to LED, chances are you won't be doing it again. With all the design work behind the scenes at Toyota, I'm surprised that this was their best solution for accessing the parkers.
I didn't take any photos during the procedure (sorry), but I went down just then to take some photos as a guide. Mind the dirt; I haven't got around to cleaning the unseen areas yet.
-Firstly, the way I did it was to remove the screw underneath the car that holds the under guard to the wheel arch guard (photo 2 taken facing the rear). When you look at the area, you can easily figure out the screw I'm talking about and how it all goes together.
-Secondly, remove two of the clips holding the arch guard to the wheel arch (photo 3, and the top circle in photo 4). The lower one is a twist and turn, the upper one pops out in the centre followed by the remainder of the clip.
-Thirdly, lift the arch guard up a bit and you will then find a screw holding the bumper in place. You will find it hidden around the location of the second circle in photo 4. Unscrew that and put it aside.
- Then carefully unclip the side of the bumper and with a combination of having the bumper sitting to the side a little (for obvious reasons, don't force it to the point that it looks like it's going to bend) and pushing the wheel arch towards the inner of the car (more forgiving if you push it hard), you can access the parkers; providing your hands and wrists aren't too large. Having a torch is quite helpful at this point in time so you can figure out where you are going to have to send your hand to.
I'm not too good with detailing instructions, so excuse me if it seems a little non-descriptive. Was it as easy or easier than installing the HID's? In general, I would say that it was probably easier. In my case though, my HID setup was a bit more detailed, and since I was also accessing the parkers for the HID's, I'd say that based on the "swear factor", both tasks were a pain in the rear end.
Thanx for your info mate
I will get it done at service which is nearly due
Once again I appreciate your reply