Thank you BassCatt and Ranger. When I say “does not start” I am referring to the engine not even turning over or making a sound. That is why I believe it has more to do with the key.
It starts fine 99% of the time, then every so often when I go to leave somewhere (without having exited the car) it will not “engage”, so to speak.
I am going to try cleaning the key and ignition out as you suggested as I truly believe that’s where the problem is. Hopefully that will do the trick. Also, now that you mention it, I will also try wiggling the shifter, as it could be as simple as the shifter not clicking all the way into Park.
You guys are so knowledgeable and informative. I really appreciate you taking the time to respond to my post. I am not mechanically inclined, and running to the dealership for these annoying little problems is certainly not convenient or cost effective. Thanks again!