I have been using a Kwikset Z-Wave door handle with a built-in keypad for years, and while I can lock and unlock remotely, and even see which code was used to unlock the door, I am unable to remotely CHANGE the code.
It’s been pretty difficult trying to find the answer. Which brand / series of door handles and/or deadbolts have the capability to allow for the remote changing of codes THROUGH SmartThings? Meaning, I want to be able to change the code from 1234 to 5678 on-demand using SmartThings (if possible of course).
I can say that this does work with a Kickset Z-wave lock. As jkp points out make sure you use the default Z-wave Lock DTH. There is also one called Z-wave lock with codes, as much as you might be inclined to don’t use that one, it doesn’t work with the Smart Guest access app in the new app.
(www.rboyapps.com - Making SmartThings Easy!)
Do you know the exact model, as @TonyFleisher linked you can also look at the post to compare features for various lock models. There are two basic types of Kwikset models the new 8xx series and the older 9xx series which have slightly different features but both support remote programming.