I have a 2002 SC that I purchased a few months ago. I've noticed that the radio antenna seems to go up and down a couple inches when I change stations. Has anyone else had this happen? Is it normal or should I be off for a warranty check at the dealer?

 

This was mentioned a few years ago on this board.

When changing to higher frequencies, the antenna will extend a bit more for better reception. This has something to do with matching the length of an antenna to the frequency being received.

It is not a malfunction but a (rare, I think) feature designed to optomize radio performance.

You paid extra for it.