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Install Smart Lock Pro, 3rd Gen Technology

To print these instructions, you can download the PDF installation guide.

What’s in the box


What you’ll need to provide


1. Prepare your existing deadbolt

Use the supplied adhesive strip to hold the keyed side of the lock in place.


2. Remove your existing thumb-latch

Unscrew and remove the screws from your existing deadbolt thumb-latch. If there is an additional back plate, remove that as well. Be sure to unlock your deadbolt before removing the thumb-latch entirely.


3. Prepare the Mounting Plate

The included mounting plate has two adjustable screw-holes that can be repositioned as needed. Remove the screws from the thumb-latch and insert them into the front of the mounting plate.


4. Attach the Mounting Plate

Tighten the screws by hand until the mounting plate is settled securely against the door. 


5. Choose your adapter



Select your adapter from the Compatibility Chart above.

If your lock brand is not in the chart, slide each adapter onto the tailpiece to find the right one. The correct adapter will have the small nub pointing up.

NOTE: The adapters can be placed in the mounting plate backwards. So if the shape is correct, but it seems backwards, try flipping the adapter around.



6. Attach the Correct Adapter

Place the correct adapter onto the tail piece with the small nub pointing up


7. Open the wing latches

Pull out both side wing latches to prepare for mounting.


8. Attach the August Smart Lock Pro

Slide the August Smart Lock Pro over the tailpiece and attach it to the mounting plate. Make sure the back of the lock is flush with the door. To secure the August Smart Lock Pro, clamp down both side wing latches to the mounting plate completely.


9. Remove the faceplate

Press down on the August logo located at the bottom of the face plate. Grab the top of the faceplate and remove it.


10. Remove the battery tab

While holding the batteries in place, remove the plastic battery isolation tab. Make sure that the battery is properly seated in its compartment.


11. Replace the faceplate

Place the faceplate back onto the August Smart Lock Pro, with the August logo at the bottom


12. Install DoorSense™

DoorSense™ enables your lock to know when the door is open and closed. For instructions on installing DoorSense™, please see: DoorSense™ Installation Guide for August Smart Lock Pro


13. Use the August Home app to complete setup

Download and install the August Home app. Select "Get Started" from the home screen, or, if already logged in to the app, select "Set Up a Lock" from the main menu.


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