The vast majority of brand-new luggage and TSA-approved locks come preset with a factory default code of 0-0-0. This applies to major brands like Samsonite, American Tourister, and Ricardo Beverly Hills. Occasionally, a manufacturer might use 1-2-3 or 0-0-0-0 for 4-digit locks, but 0-0-0 is the industry standard. To open a new suitcase for the first time, simply ensure the dials are at 0-0-0 and slide the release button or push the clasp. It is highly recommended to change this code immediately, as anyone familiar with luggage can easily open a bag set to the default. To reset it, most locks have a small "reset button" (often a tiny pinhole) that you must press with a pen while turning the dials to your new chosen combination. Once you release the reset button, your new code is set. Always write down your new code or save it in a secure app, as a forgotten custom code often requires a locksmith or a "brute-force" trial of every possible number.