Change Combination on Cannon Safe: Quick Steps for Secure Access

Emily Jul 26, 2026

If you've recently acquired a Cannon safe, you might be wondering how to change the combination to enhance security. This comprehensive guide will walk you through the process, ensuring your valuables remain protected. Let's dive right in.

How to Change Combination on Cannon Safe
How to Change Combination on Cannon Safe

Before we begin, it's crucial to note that Cannon safes are renowned for their durability and security, boasting a versatile range of models. Whether you own a burglary-resistant home safe or a Thereabouts gun safe, the combination change process remains largely similar.

Cannon Digital Gun Safe Fail Fixed! Locked Out! Don't Drill! - Extreme DIY
Cannon Digital Gun Safe Fail Fixed! Locked Out! Don't Drill! - Extreme DIY

Understanding Your Safe's Combination Mechanism

Cannon safes employ a simple yet robust mechanical lock system. Familiarizing yourself with this mechanism is the first step in changing your safe's combination. The lock consists of a dial (or digital interface for some models) connected to a sprocket system that engages with wheels inside the safe. Manipulating these wheels through the dial sets and unsettes the locking bolts, allowing the safe door to open or close.

Forgot The Combination To Your Safe? Here’s What To Do
Forgot The Combination To Your Safe? Here’s What To Do

There are two primary types of combination locks: direct-drive and indirect-drive. The process to change the combination varies slightly depending on which type your Cannon safe uses. We'll cover both in this guide.

Identifying Your Safe's Lock Type

an open safe with instructions on how to use it
an open safe with instructions on how to use it

To determine your safe's lock type, observe the back of the safe's door. If the dial is directly engaged with the locking mechanism (i.e., turning the dial moves the locking bolts directly), you have a direct-drive lock. If the dial is connected to a complex series of gears and levers, it's an indirect-drive lock. For Cannon's digital safes, locating the lock type isn't necessary as the process is universally distinct.

Preparing for the Combination Change

Before proceeding, ensure your safe is empty and placed in an accessible area. You'll need both the current combination and your new desired combination. It's advisable to choose a strong combination consisting of at least four numbers, with no sequential or repeated digits for optimal security.

Costco Safe - Change Safe Combination w/Bloopers
Costco Safe - Change Safe Combination w/Bloopers

Now, let's dive into the combination change process for each lock type.

Changing the Combination on a Direct-Drive Cannon Safe

The direct-drive lock is simpler and more intuitive. Here's how to change your combination:

Finding the Combination to a Safe
Finding the Combination to a Safe

Step-by-Step Process

1. Open your safe using the current combination.
2. With the door open, locate the combination change lever situated inside the safe, near the top or bottom. It's usually a small, numbered lever with a release button.
3. Press and hold the release button while pulling out the combination change lever. You should feel it click into place.
4. Input your new combination by rotating the dial to each number. Ensure the dial returns to zero between each number. Once all numbers are entered, release the lever. Your safe's combination is now changed.

How to Open a Safe With a Lost Combination
How to Open a Safe With a Lost Combination
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How to Open Your Safe by Dialing the Combination Lock
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Cannon Digital Gun Safe Fail Fix! Locked Out! Don't Drill - TRY THIS FIRST!
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How to change the combination on the S&G Group 2 lock | Group II Sargent & Greenleaf | Open a safe
a woman in white shirt holding a brown and red purse with pink accents on it
a woman in white shirt holding a brown and red purse with pink accents on it
the parts for an oven and stove are shown in this diagram, which shows how it works
the parts for an oven and stove are shown in this diagram, which shows how it works
two metal safes sitting side by side in front of a black background with the words, 4 th security guard
two metal safes sitting side by side in front of a black background with the words, 4 th security guard
How to Dial Open a Combination Lock For Safes
How to Dial Open a Combination Lock For Safes
How to open a mechanical combination safe lock
How to open a mechanical combination safe lock

Testing the New Combination

Close the safe door and try opening it using your new combination. If successful, congratulations! If not, double-check each step and ensure you've followed the process correctly.

Pro Tip: To avoid locking yourself out, consider setting up a override key or providing access to a trusted individual who knows the combination.

Changing the Combination on an Indirect-Drive Cannon Safe

Indirect-drive locks involve more steps but are no less straightforward with the right guidance.

Following the Safe's Manual

Cannon provides detailed instructions specific to each safe model in their user manuals. If available, consult the manual for your safe model. The process might involve temporarily securing the safe door open and manipulating internal components. If you're uncomfortable with this, consider hiring a professional safe technician.

General Steps for Indirect-Drive Combination Change

1. Open your safe using the current combination.
2. Secure the door open temporarily using a block of wood or a screwdriver, if necessary.
3. Locate the internal lock mechanisms, typically accessed through the keyhole or a hidden access panel.
4. Using a specific tool (often provided with the safe), manipulate the internal locking bolts manually while inputting your new combination on the dial.
5. Once complete, remove the door securing device and attempt to open the safe using your new combination.

Remember, indirect-drive combination changes can be delicate. If you're unsure, don't hesitate to contact Cannon's customer support or consult a professional.

Changing the Combination on a Digital Cannon Safe

Cannon's digital safes offer advanced security and an easier combination change process.

Using the Factory-Default Master Code

All Cannon digital safes come with a factory-set master code (usually 1-2-3-4-5 or 0-0-0-0-0). If you haven't changed it, use this code to access the programming menu. If you have changed it, input your current master code.

Following the Display Prompts

Upon entering the master code, the safe's digital display should prompt you to change the combination. Follow the on-screen instructions to input your new combination. Typically, this involves entering the new combination twice for confirmation and saving the changes.

As always, test your new combination to ensure the change was successful.

Lastly, consider storing your safe's combination in a secure, easily accessible location. A secure digital lock is only as good as your ability to remember the combination. For additional security, consider using a password manager or a secure, encrypted notepad.