Occasionally I have to leave my dog in the back seat. With the truck not running, when I lock the truck, a few minutes later, the horn honks twice, if I hit the lock button on the remote it will stop but then in a few minutes it will honk twice again. It doesn't do this when the dog is not in the back seat. The Rear Passenger Alert feature is set to OFF by default and that's where I leave it. How can I turn off this horn honking when my dog is in the back seat?