Gear Shifter Sticking!!??

[prplprowlr]

Has anyone else had a problem with the shifter sticking in park? I plan to take it to the dealer next week. When I go to shift from park to Reverse or Drive I cannot get the thumb button to push in. I have to hit it with the palm of my hand to push it in. It has been doing this only the last few days and it is every time i get in, The transmission seems to be working fine it shifts normally other than that, I just think the shifter is sticking, i was going to take it off tomorrow and see if something in the shifter was broken or hung up.
Any suggestions or fix problems will be appreciated.