You have to have at least two keys.

  1. Enter car as normal (DUH!! :-b)

  2. Find back up key slot, ours is under the cup holder insert, it has a little indent that looks like our key

  3. Put key in slot

  4. Put in accessory mode by pushing start without foot on brake

  5. Wait 3-5 seconds

  6. Shutoff car

  7. Remove key

  8. Put 2nd key in place

  9. Put in accessory mode by pushing start without foot on brake once again

  10. You should now see the Factory door code displayed on the left gauge LCD

I"m not guaranteeing that this is going to work for you, but this is what worked for me. The video is embeded below.