On the fence about getting a tune - someone talk me into it!

[Brucelinc]

I can't imagine why they would do any sort of reflash if you are just going in for the license plate light.  I wouldn't go back to stock if I were you.  I guess there is no harm in doing it but I don't like to do any more reflashes than necessary.

[Larrylu]

I agree with Bruce but I'll add that I'm lucky to have a fairly good relationship with my dealer and they know I'm running a tune. I remind them when I set up an appointment and ask them if I need to put it back to stock before bringing it in. It doesn't eliminate all the risk, but I do hate to reflash unnecessarily.