I have a 2013 Cruze, so no CarPlay. It has Bluetooth but I never connect it and it has an Automatic OBD reader. The feature has yet to work for me at all. That being said, once i get out of class, I will pair my phone via bluetooth to my phone on the way home and see if it pops up then.
FWIW, I paired my iPhone with my car and it worked instantly. I'm fairly certain that it works via CarPlay or Bluetooth. Also my car shows as "Your Vehicle".