3 Way Switch

[JDRoberts]

@Kokes

I’m new to all of this. In fact, my hub arrives Tuesday. One of the first things I would like to do is connect the lights on the outside of the garage. They are on a 3 Way Switch. One Switch is by the front door while the other Switch is by the door going in to the garage. Can I get away with replacing just one of the Switches with a zwave plus Switch or do I need to replace both? This is a great forum. I’ve been reading through different topics trying to learn ahead of time. Thanks for the help.

Welcome!

You need to replace both. See the following (this is a clickable link)

FAQ: Zwave Switches 101 for Noobie (What's an Add-on Switch for and Do You Have to Replace All the Switches in a 3-Way?)

Brand new to Smartthings and trying to get some areas of the house “connected” ASAP. Most of the devices available are intuitive enough to figure out, but one area that seems to be a bit confusing is the on/off light/scene/etc. switchs that are available. I am mainly confused with the 3/4-way options, the add on switches and how these inter-operate with existing switches (if at all). My initial understanding is that I can replace a single pole switch with something like the GE Z-Wave Wireless Lighting Control On/Off Switch, if I want it to be able to dim the lights I need one that supporting dimming. If I have a 3/4 way lighting setup I need to get a zwave/wireless switch that is capable of supporting 3/4 way. However does this mean I can just replace one of the existing switches with…