All You wanted to know about Toyota Keys/ Smart Keys (including Tacoma)

This is basically a link to youtube, pretty informative



13:30: door open dings, close door and re-open, or press the courtesy switch to imitate door closing.
13:57: If you cancel smart key function (hold lock/press unlock twice), press button on remote, goes to different receiver.
14:50: With dead battery for Fob, the key sends signal activated by proximity without needing a battery power(start near start button)
15:15: smart key drains Fob battery which routinely transmits.
16:30: programming key/fob.
22:00: Geez, mind blown, re-programming, to replace all keys, lock-out and worst case scenario replace computer in car.
24:00: If battery dies in process of the car starting, might leave the computer in an error code state.