How to change your luggage lock combination

Updated November 3, 2026

Quick answer

Use the current combination to open the lock, then follow your model's setting instructions. Some buttons stay pressed in; others must be held, and some locks use a selector or shackle. There isn't one reset sequence for every suitcase. Test the new code before securing the bag.

Change the code with your instructions beside you

Find the right instructions. Match the brand and product model, not just the TSA marking. Samsonite's Support & Go lets you look up locking instructions by product reference.
Open it with the current code. For a new lock, check the documented factory setting. If you've changed the code, use your current one. Reset doesn't mean a universal return to 000.
Enter the model's setting mode. A recessed pin may stay in until you operate the release. Other designs require holding a button or moving a selector. Follow the illustrated procedure for your lock; padlock shackle positions vary too.
Set and confirm your new code. Choose the digits and complete the exact confirmation step in the instructions. Depending on the lock, this means operating the release, letting go of a button or returning a selector or shackle.
Test before securing the bag. With the suitcase open, scramble the dials and check the locking and release action several times as the instructions allow. Save the confirmed code with a recognizable bag name before packing.

If something doesn't match the instructions

Check that you're using instructions for the same lock design. A zipper lock, latch lock and separate padlock can work differently.
Don't apply a 90-degree shackle instruction to every padlock. Master Lock's own models include both 90-degree and further-turn procedures.
If the code is unknown or the setting mechanism won't move normally, stop and ask the maker for help rather than forcing it.
Save the code outside the bag. A phone note or a lock-code keeper such as MyLockCode can help you find it next time.

Frequently asked questions

Do I have to keep the reset button pressed?

It depends on the model. American Tourister describes a pin-button design confirmed with the opening button, while Travel Sentry also documents hold-to-set designs. Use your model's instructions instead of treating either method as universal.

Can I change the code if I don't know the current one?

The normal user setting procedure requires the current combination. Master Lock explicitly says its set-your-own locks can't be reset without it. For a locked suitcase with an unknown code, use the forgotten-combination guide or ask the maker.

Can I change it again after the first setup?

On a resettable model, follow the instructions using the current code. The factory default is for initial setup, not a code that must be restored before every change.

Does a TSA lock prevent theft or guarantee no inspection damage?

No. Compatible inspection access can reduce the need to cut a lock, but TSA says removal may still be necessary. Travel Sentry also says no travel lock guarantees protection against determined theft.

How do I recognize a Travel Sentry lock?

Look for its red diamond logo. That identifies the Travel Sentry system; it isn't a promise that the bag can't be damaged or opened by someone else.

What code should I choose?

Avoid easy guesses such as 000 or 123. Choose a code that isn't obvious to someone else and save it somewhere you can find again. Don't print it on the outside of the bag.

Official sources checked

Use the instructions for your exact model. Service arrangements can differ by country.