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How to Install a Lutron Maestro Occupancy Sensor on a 3-way Switch


Teaching kids to turn off the lights in a room they are no longer in is a tough job. No matter how many times I try to explain that leaving the lights on wastes electricity, it just doesn’t seem to sink in. In their defense, they are like little wind up tops flitting from room to room playing with trains in one; reading in another and barely stopping to use the toilet in the bathroom (putting the lid down is a whole other issue! Ugh.)

When Lutron approached me about giving my kids a helping hand with the lights, I was immediately intrigued. It turns out that Lutron has just introduced the Maestro occupancy sensor dimmer that can be easily installed in place of an existing light switch. (Single pole switches are easiest. Dual or Multi-location switches may require a little more wiring and programming to work properly.) After some thought, I decided to try the Maestro in our art & craft studio. This is the room that we least notice when the bulbs are burning (it is over the garage and is separated by our guest room from the rest of the house.)

Follow along to see how to install your own. Your attentive nature may be rewarded at the end. 😉

(I’ve included affiliate links for your convenience. I earn a small percentage from a purchase using these links. There is no additional cost to you. You can read more about affiliate links here.)

Install a Lutron Maestro Occupancy Sensor on a 3-way Switch Materials:


Make sure you purchase the switch specific for your location. If your light is only controlled by one switch, the single pole switch is used. If your light is controlled by two separate switches, chose the 3-way or multi-location switch. (It’s called a 3-way configuration even though there are only two switches. I know confusing.)


Here is a quick video tutorial for installing the Lutron Maestro Occupancy Sensor Dimmer in a 3-way configuration:

Photographic Tutorial:

1. Make sure you have the power turned off to the light AND any other switches that are in the same switch box. Test all the power (black and red) lines with a voltage tester before proceeding.

2. Remove the existing light switch from the junction box but do not remove the wires yet. You may wish to mark which wire was connected to which screw. Especially if this is one of two switches that controls the same light fixture.

3. This is where things can get tricky. The lighting in our art room is controlled by two separate switches (3-way switch configuration.) One switch at the top of the stairs and one at the bottom. I added the Maestro to the top switch since this is the one that will sense motion as the kids and I are playing in the room.

4. Wire the Maestro in the location that will view the activity in your room.

Always wire the ground (green or bare wires) first. This will ground the switch should someone accidentally turn the power back on. Also, the Lutron sensor must be grounded to work properly.


Then connect your house white or neutral wire to the brass screw. Attach the black wire to the black screw.

Finally, attach the red wire to the blue screw.


5. In order for the Maestro to maintain power, you must re-wire the other switch that controls your light fixture.

The red wire remains attached to the mechanical switch.


Remove the black and white wires from the switch. Twist them together along with the yellow jumper wire included with the Lutron Maestro. Connect the yellow wire to the black screw on the switch.


6. Screw the mechanical switch back into the junction box.

7. Screw the Lutron Maestro back into its junction box.


8. Turn the power back on and test both switches to your light fixture to insure that they work properly.

9. Attach the face plate and you’re done.


(Side note: If your switch is located in a box with other switches, you’ll have to replace the other switches with decorator switches to work with the new face plate.)

Hey, who left the lights on?


Nevermind…Maestro took care of it.


The Lutron Maestro Occupancy Sensor Dimmer is programmable if you wish to change the length of time the light remains on after it stops sensing activity; the sensitivity to motion and heat; and the light level. See additional video tutorials on installation and programming at Lutron.

Don’t be discouraged if your wiring doesn’t match my wire colors. I highly recommend calling Lutron’s 24/7 Tech Support! I called them when I had questions and they were super helpful. The Lutron Tech Support number is: 1-800-523-9466





Disclosure: This post is a sponsored post for Lutron. I was compensated for my time and project materials. All opinions and words are my own. Lutron is a company that I was happy to partner with because they make quality products that I have used for years. Rest assured that I will not partner with brands that I don’t value or respect. 

If you liked this post, you may like more electrical tutorials:

Install a Lutron Maestro Occupancy Sensor on a 3-way Switch

53 replies
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  1. Drew
    Drew says:

    Does that normal 3 way switch still turn the light on/off? If so, if you turn on the light using the normal 3 way switch, does the Maestro motion sensor turn the light off after the specified timer? Or do you have to turn it off again using the normal 3 way switch? Thanks!

  2. Chris G. Sellers
    Chris G. Sellers says:

    Thank you for your wiring implementation. The diagram that comes with the switch is useless to determine which wire is desired and is different from most n-way switch behaviors. They also used less common terminology like “tagged” instead of “traveler x” Your wiring (slightly modified for my setup) worked, although it does take a moment to turn off with the mechanical 3-way. That may be a setting I have yet to tweak. Thank you.

  3. Denis
    Denis says:

    An impressive share! I have just forwarded this onto a coworker who had been conducting a
    little homework on this. And he in fact bought me dinner due to the fact that I found it for him…
    lol. So let me reword this…. Thanks for the meal!! But yeah, thanks for spending time
    to talk about this subject here on your blog.

  4. Paula shinto
    Paula shinto says:

    Thanks for your informative video and article. I plan to install the motion switch in my hallway and bathroom.


  5. Spencer
    Spencer says:

    What does it take to have occupancy sensors at both the top and bottom of stairs? Both Lutron and Leviton state you can only have one occupancy/vacancy sensor per multi-location circuit however the kids forget the lights both coming and going so just one won’t do. The circuit is currently wired as a regular 3-way with 6-40w florescent tubes in ceiling fixtures so I’m motivated to get this worked out.

    • Brittany Bailey
      Brittany Bailey says:

      Spencer, we only have the occupancy sensor at the top of the stairs in the room. The timer will automatically turn off when it no longer senses motion after a preset (can be changed) amount of time. So, you should be fine with just the single sensor.

    • John
      John says:

      I agree with Spencer..I also have a situation that I would like answered. Our laundry room from the garage to the house is L shaped. Door from the garage to laundry room and door from laundry room to the house. I would like the light to come on and off no matter what what door I came through.

  6. Coopscasa
    Coopscasa says:

    Great job with your tutorial. Very clear and descriptive with nice balance of instructional text and video. Keep up the great work!

  7. Rey
    Rey says:

    Thank you for this tutorial. After reading the instructions manual and being confused, I was finally able to do this right. I got stucked with the companion 3-way switch modification. The instructions were not clear, and since cables are different colors it is very difficult to know for sure. Your video and photos were perfect and I was able to fix my problem right away. Thanks!

  8. Hannah
    Hannah says:

    This would be perfect for our mudroom. We can’t reach the switch after we lock our door so we could have light as we walk out of the house at night. Sounds awesome!

  9. Martin @ MiterSawReviews
    Martin @ MiterSawReviews says:

    Hi Brittany

    Thanks so much for this tutorial. I’m not particularly handy with electrical installations (even simple ones as these), but the detailed pictures you included really made it a no-brainer. I’m actually tempted to look into an occupancy sensor myself. From what I heard the dimmer can help save a little on electricity bills – that alone is worth the $40 investment.

    Thanks for the inspiration.

  10. Mary
    Mary says:

    First of all Thank You for the tutorial on installing the Lutron Maestro Occupancy Dimmer. I shy away from all things electrical because it seems kinda scary, but I’m pretty sure I can handle it with your instructions.

    Secondly, I would l-o-v-e to win one! Single pole please!

    Thanks again for the tutorial.


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  1. […] it’s been a while since I installed the Lutron Maestro Occupancy Sensor in our Art & Craft Studio (+ toy room, train room, general overload of stuff room.) And I can […]

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