Push the reset lever left and down. The lever remains in this position. What you Need: pencil or marker, Phillips head screwdriver, level, drill, and drill bit. For certain surfaces, we recommend using anchors …

Master Lock 5401 Code Change Instructions Simple instructional video showing how to change the combination of the Master Lock ‘Select Access’ 5401 key storage unit.

This video will show you how to quickly and easily change the code on you masterlock key lock box. We will also go through one of the issues you may face tha...

Nov 11, 2025 · Changing the code on a Master Lock box isn’t some impossible task reserved for locksmiths. It’s simple once you know the steps and a little bit about your model. Most lock boxes, …

Unlock the secret to resetting your Master Lock Key Safe! Scott reveals the simple steps to customize your combination for enhanced security.

How do you reset a master lock box code? Slide down the shutter door on your Master Lock 5400D portable key safe and roll the dials to "0000" – the factory default combination.

Simple instructional video showing how to change the combination of the Master Lock 'Select Access' 5401 key storage unit.