Lexus 2006 IS250 awd is having problem with the

On the engine firewall near the brake booster.

You are possibly low on power steering fluid. Check the reservoir and top it up as needed. You will need to do this again after a short while, as air works its way out of the pipes.
Then you should think about why it got low to start with. It is possible the power steering gear has sprung a leak somewhere. A common place for that is the steering rack end seals.

I have on 07 is250 and the power windows and trunk release were not working. There is a trunk/valet button in the glove box that needed depressed in order to make them work again.

well the pictures are not in order but you can see what the cover looks like, the filter will be right under it .. there is two screws that are holding that cover in place.the picture above that is how it will look when you remove that cover.you will need a filter wrench to remove it..

need more information. Do you still have power steering fluid in the reservour? Is the power steering belt intact?

I have this exact same problem with my 2006 IS 250 as well. It happened just last week and it was sudden; I pulled out of a parking lot and noticed the steering wheel was very hard to turn. I wonder if this is going to end up being another recall for toyota.

Well the only thing that can make the steering wheel hard is a broken power steering pump belt, or if you ran out of fluid, this happens only if you have a hydraulic power steering,But if you have an (EPS) which means Electronic Power Steering. Then that could be an electronic problem that you should talk to your dealer about because your car seems to be under warranty still and you don't wanna play with it until you see what they say about that. Good luck

As mentioned check ps fluid. If it wines when turning and still no power then the pump is internally bad.. If the fluid is dissapearing fast then its a hose or most likely a leaking rack& pinion assembly..

My 2007 Lexus IS250 is dead, hooked up a charger. Charger keeps shutting off. Triple checked the cables, + - correct, still shuts off charger?

On North American IS250 it is to the right of the steering wheel below the ignition button. There should be two switches ECT and TRAC side by side