Let us know what you find out with the dealer. I'm also having intermittent issues. I was actually locked out of the car with the engine running and couldn't unlock the doors. I had to use the hard key.
There's nothing like gaining appreciation for the ps4s than driving on Blizzaks! You absolutely, positively should swap your wheels for the winter, as it doesn't require much snow to make life miserable.
I'm also a big Griot's fan. Just used their newer Ceramic Liquid Wax on my Tiger Eye Pearl ITS, and the result is stunning. Can't speak to durability, yet, as I applied it 4 weeks ago. A little more involved than typical spray or liquid finishes, as you first take the wax off with a damp towel...