Is there a way to set it up where the door automatically locks when you walk away from the car with you key in your pocket?

 

No to my knowledge...I think it is dimple or remote, or if remote battery is dead, key, unless you first lock it from inside.

Did you check the manual? Look in the MID section where you set up lock and unlock. Let us know what you find.

 

There is no fully passive locking feature. You must either touch the doorhandle dimple, use the fob lock button, the door lock button / toggle on the door or the physical key. The doors will not lock if the fob is inside of the vehicle.

There is, however a SECURITY RELOCK feature with customizable time delays to RELOCK. This is located in the MID and page 128 on my 06 RL Manual:

http://techinfo.honda.com/rjanisis/p...606O00125A.pdf

If you unlock the doors by the fob or doorhandle and do not open the doors, they will RELOCK automatically (if set to do so). But once you open a door, you must lock the vehicle as previously mentioned.