Car noise on 2010 Toyota Camry

I purchased a 2010 Toyota Camry in Dec, 2009, and drove that car since then. Recently, I notice if the car sits there for a while (over 4 hours), when I start the car to back up a little bit, then drive forward. There will be a clinck noise came out. I talked to dealer about this issue. They said it is normal, but I really doubt it. Can anyone help me about this? Thanks in advance.

Asked by for the 2010 Toyota Camry
See another dealer, if possible, and if that does not satisfy, then call Toyota customer service. There should not be any clunks on a car this new.
2 answers
I have the same issue, and it's the ABS system "clicking into gear"