2010 Lexus ES 350 • 6 cylinder FWD Automatic • 5,000 miles

I bought a brand new 2010 Lexus ES350 in August. Just 4 months going on and only 5000 km gone. But, now in this winter when I start my car, after that when I push break, it make noises. Then when its running, like after couple of minitus when again I press break, no noise. I dont understand whats the problem. Please advice something. Thanks.
December 23, 2010.

It could be a few things. I recommend taking it to a dealer. IT is under warranty 100% so there will be no cost to you. Make them fix it before the warranty runs out.