Yale Assure Lock SL Review

Is this deadbolt just a marketing gimmick (upsell, upsell, upsell!) or is this a great and connected purchase for now AND the future? We think a little bit of both. The functionality can match some of the better locks on the market, but requires you to purchase the optional accessories. Read out entire Yale Assure Lock SL review to make sure you purchase the best deadbolt for your family and home. 


Product Number Assure Lock SL (YRD256)
Key Access No
Touchpad/Keypad Yes, 12 button keypad
Installation Location Exterior Home Access
Apps Yes, Yale apps are available on IOs and Android (requires the Yale Smart Module upgrade)
Guest Access Yes – 25 User codes (250 User codes with the Yale Smart Module)
Location Services/Geofencing No
Connectivity Wi-Fi and Bluetooth with the Yale Smart Module upgrade. 
Voice Activation No
Integrations Available Compatible with most smart home tech providers with the Yale Smart Module
Tamper Alarm Yes
Auto-Locking Yes 
Warranty 1 Year Electronics; Unlimited Lifetime on Finish and Mechanical


Yale provides everything you need to get started in the box. For most locks, smart or not, installation is easy and generally requires very little tools. Our typical caveat – some who aren’t very technical, may have trouble with the most basic of tasks. But as some one reading this review, you likely won’t!

When you open Yale Assure Lock SL box, you’ll find the following:

  • Yale Assure Lock SL keyless touchscreen keypad
  • Yale Assure Lock SL interior
  • Battery cover
  • Mounting plate
  • Installation guide and door template
  • 4 AA batteries
  • Strike plate
  • deadbolt
  • 2 inside lock screws
  • 4 strike plate and deadbolt screws
  • 6 through bolt screws (one set will be used based on your door thickness

Depending on your needs and smart home systems, you can also buy deadbolt bundles from retailers like Amazon, Home Depot and Lowes that may include levers, knobs, handlesets or even the Yale Smart Module to match your existing system or create new aesthetics for your home. You can find the various bundles available here available for your home. 

It seems we hear a lot about customers who THINK they are getting the smart version of the Assure Lock SL, but do not have the Yale Smart Module. Know what you’re buying as many boxes and offers that do not include the module will show pictures with it. If the price is about $50 cheaper, then it’s probably a pretty obvious answer (assuming new and not a repackaged box)!



I feel like we’re repeating ourselves with all our reviews, but like most others sold today, the Yale Assure Lock SL installation is quite easy! This smart deadbolt is very much a plug-n-play lock – if your door has a thickness of 1 3/8” – 2 ¼” and the back set is between 2 3/8” and 2 ¾”, installation is pretty simple. Nothing complex! Most modern construction has doors that fall in these parameters. But worth a quick check before you buy! 

yale assure lock sl programmingProgramming the keypad was straightforward. First, you need to create the Master Entry Code. This is the most important step as it’s required to make any future changes (unless you like to play the “reset to factory settings” game!). Once this is done, you can go ahead and set-up the rest of the codes you need in addition to some of the other features like the auto-lock and tamper alarm features. If you’d like to review the Yale Assure Lock SL manual before buying, you can read the manual here (scroll down under the Product Information section). 



yale assure lock slThe Yale Assure Lock SL is a simple attractive electronic deadbolt. We like the small symmetrical appearance of the touchscreen keypad. There’s something about 12 keys that we just prefer over the other locks. Additionally, we like the backlit feature so until activated by touching the touchpad, the numbers do not show. 

The interior, like most of the electronic or smart deadbolts is sleek and modern. It won’t match certain aesthetics, but that’s where the finish comes to play – you can plan to match the color to interior finishes to make it blend. Trust us, the convenience will trump the appearance! 

The Yale Assure Lock SL has 4 available finishes:  Satin Nickel, Oil Rubbed Bronze, Polished Brass and Black Suede. The are pretty generic colors and can match most common interior knobs and handles today. But Yale does bundle this (or you can buy separately down the road) with handle sets and levers. Most won’t have a problem finding one to their tastes – you can view what mechanicals are available here.



The Yale Assure Lock SL is a certified electronic deadbolt. Nothing surprising here! It’s a certified A156.36 ANSI/BHMA deadbolt. As stated on the BHMA website, “the ANSI/BHMA A156.36 establishes requirements for Auxiliary Locks, and includes dimensional criteria and five classifications of tests: operational, cycle, strength, security and, finish.”

Like most residential deadbolts, falls in the lowest grouping, a grade 3. This is defined as an average, everyday use deadbolt which will provide an acceptable level of security for homes. Most basic builder quality deadbolts installed fall into this category. For most uses, this is enough when paired with an alarm, camera system or even if you just live in a dense residential area. Those that require more security may opt for a higher grade lock.



Without the Yale Smart Module, the Assure Lock SL is just a keyless deadbolt. To some extent, we understand why they sell the deadbolt this way (to appeal to a non-smart home enabled customer base), but the connectivity is what makes these locks great. 

We like to think of the Module as a must buy, especially if you have any interest to connecting to any app! All the tech lives here. With the Smart Module, you can connect to almost any technology. BUT, there are FOUR different modules so you need to know what you’re buying (see a theme here?). They options are:

  1. Connected by August: specifically for their connection with August Smart Home products. 
  2. Yale Z-Wave Plus Smart Module: The most likely purchase – connects to Samsung SmartThings, Wink, Ring Alarm, Qolsys, Alarm.com, Honeywell, Amazon Alexa and Google Home. 
  3. Yale Zigbee Smart Module: For Xfinity Home customers and those who have an Echo Plus or Echo Show at home.
  4. Yale iM1 Smart Module (Apple HomeKit): If all you want to do is connect to your iPhones, then this is the module for you!



The only real accessories here is what we’ve discussed above – the Yale Smart Module and the bundles including the various knobs, levers and handle sets. 



All-in-all, the Yale Assure Lock SL is a great lock. It has a lot of the smart home features you need but at a price. They sell the lock WITHOUT the technology starting around $125. The premium from the other keypad locks of the same grade is due to the keyless touchpad. We’re a fan of this feature and would be happy to pay a bit more for this for function and style.  

So in comes the marketing – sell the upgradeable modules for connectivity to increase the average cost for install! The benefit here though, is that if you change your smart home technology in the future you can just swap out the Yale Smart Module rather than the entire locks! Maybe this isn’t a marketing gimmick after all. 

This lock is a good one for the value – at the end of the day, you’re spending less than $200 for a lock that can connect to almost any smart home system.



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