Which lock is this? The Yale Pro SL Key-Free Push Button Deadbolt with Z-Wave (model YRD136). It has a push-button keypad and no keyhole.

Can I change them myself? Yes, in about five minutes. The lock doesn’t need to be paired again, and your codes stay as they are.

You’ll need: a Phillips screwdriver and four new AA batteries. Don’t use rechargeables, and don’t mix old and new; that can damage the lock.

1. Unlock the door first so the bolt is pulled back.
2. On the inside of the door, find the battery cover on the inside part of the lock.
3. Loosen the screw on the cover, turning it counterclockwise. The screw stays attached to the cover, so it won’t fall out.
4. Slide the cover up and off.
5. Take out all four old batteries and put in four new AA batteries, matching the + and − marks. The lock beeps four rising beeps when it powers up.
6. Slide the cover back on and tighten the screw.
7. Test it: lock and unlock it from the keypad, then from the Alarm.com app. The app may take a few minutes to update.