2013 R-Spec approaching 100k miles. Well, what now?

[MFFNike]

Just put my beloved R-Spec in the shop for some long overdue minor body repairs. Two questions while I sit here in this stupid rental Camry:

1) I haven't done much to the car since I bought it, other than adding the wing emblem and wheel cap emblems. Am I missing anything?
2) I spilled some liquid in the center area below gearshift; all buttons still work, but one of them is still sticky and sticks when you press it. Any solutions other than doling out $1k+ to replace that center nav unit?

 

[scottdk]

Have your replaced your fluids? Brake fluid, coolant, trans, rear diff fluid etc.?

 

[NSXNEXT]

For #2 I would use a little CRC Contact Cleaner or Electronics Cleaner.

Spray a little into the gap between the button and frame. Push the button a bunch of times and see if it resolves the issue.

 

[OUsig]

I have the same issue with the bottom right button next to the "wheel" - I have sprayed everything possible and it still sticks. Will have to pull the trim pieces off and manually clean it I think.
Make 100% sure you have all fluids replaced, spark plugs, etc. Most of this can be done yourself if you like.
I have the original brake pads and rotors on my 2013 and I am at 112000 miles