How to Install a Yale Assure Lock SL Standalone

By Yale Locks | Official Online Store | Yale Home | Published: 2026-10-20

Category: How-to Guides

Learn to install your Yale Assure Lock SL standalone keypad deadbolt in a standard door. Step-by-step instructions with common mistakes to avoid.

Quick answer

Installing a Yale Assure Lock SL standalone requires only a screwdriver and about 20 minutes. You remove your old deadbolt, mount the new keypad and interior assembly, then test the lock before programming your entry codes.

What you need before starting

The Yale Assure Lock SL standalone works with standard door prep for a single-cylinder deadbolt. You do not need a smart home hub or Wi-Fi for basic operation—this lock is designed for code-only entry. The box includes the keypad exterior, interior assembly, mounting plate, screws, and batteries. You will need a Phillips-head screwdriver and a tape measure to check your door thickness if you are unsure.

Installation steps

Remove the existing deadbolt: Unscrew and remove the interior thumb turn, then pull out the exterior cylinder and latch assembly. Keep the old screws if you need them for door thickness adjustments later. Check that your door's cross-bore hole is at least 2-1/8 inches in diameter—the Assure Lock SL requires this standard size.
Install the new latch and mounting plate: Insert the latch into the edge bore with the bevel facing the door frame. Secure it with the provided screws. Attach the mounting plate over the latch on the interior side, ensuring the cable slot faces the latch. Do not overtighten the mounting plate screws—the plate should sit flat without bending.
Mount the exterior keypad assembly: Feed the cable from the keypad through the center of the mounting plate. Align the keypad over the plate and press it flush against the door. Hold it in place while you proceed. Make sure the keypad sits level before tightening—an angled keypad can cause alignment issues with the latch.
Attach the interior assembly: Connect the cable from the exterior keypad to the interior module. Tuck excess cable into the door cavity. Slide the interior assembly over the mounting studs and secure it with the provided screws. Insert four AA batteries. Pinch the connector gently—damaging the pins is the most common installation mistake.
Test the lock and program codes: Close the door and use the keypad to lock and unlock with the default code (usually 1-2-3-4). If the latch moves smoothly, proceed to change the master code and add user codes via the keypad instructions. If the latch sticks, adjust the mounting plate screws slightly or check that the latch aligns with the strike plate.

Product facts

Yale Assure Lock SL, Standalone: The Yale Assure Lock SL is a keypad deadbolt offered in three finishes: Satin Nickel, Oil Rubbed Bronze, and Black Suede. Choose a finish that matches your existing door hardware so the lock blends with your home's style.
Yale Assure Lock SL, Standalone