'07 Sonata won't go into Park / Reverse

2007 Sonata - under 3,000 miles. Twice it would not go into park.  Then, to make things interesting, it won't go into reverse.  Took it to the dealer - they have no clue.  Help - Any idea what I should do???

Wow, thats like a brand new car!  Someone at the dealer should help u, its still under warranty! Take it back!    I would be extremely upset!  I have a 2003 hyundai sonata, It only had 15000 miles on it when I got it!  Runs great, but most cars only last 5 years so I am planning to  trade it in. for something else, I love my car, i am just scared it will break down on me!  Good Luck with ur Hyundai!  :)