You can lock the remote before shutting the last open door and it will not honk, this locks all doors. The "heat " is poorly designed for such a large SUV. It was more like an add-on engineering thought. The "rear" heater is only the electric (I think because it warms immediately) derived space heater in the third row passenger side. This only blows air from the one side. The person in the third row, passenger side burns up, while the driver side feels little. The heat for row two is just like any other car, so the front heat controls are the only thing that blows heat from the center and maybe from under the front seats. For the AC this is totally different, plenty of cold air from any of those vents (except the third row floor space heater vent). I hope they redesign this before I buy my 07 or 08.