Short answer. The pledge itself is presumed remitted. Article 1274 presumes a pledge has been remitted once the pledged thing, after delivery to the creditor, is found back with the debtor or a third-party owner. The presumption can be rebutted and does not by itself cancel the underlying debt.
What the law says
It is presumed that the accessory obligation of pledge has been remitted when the thing pledged, after its delivery to the creditor, is found in the possession of the debtor, or of a third person who owns the thing.
Civil Code, Article 1274 — Presumed Remission of Pledge. Read the full provision →
What the presumption actually covers
Article 1274 addresses the pledge itself, which is an accessory security arrangement, not necessarily the debt it secures. A pledge depends on delivery of the thing to the creditor; when that thing turns up back with the debtor, or with a third person who owns it, the law presumes the creditor voluntarily gave up the security. The immediate legal effect is that the item is no longer encumbered by that pledge, whether or not the loan it secured has actually been paid.
Why possession triggers the presumption
Because a pledge requires physical delivery to the creditor to exist in the first place, its return is treated as evidence that the creditor no longer intends to hold it as security. A creditor rarely hands back a pledged item while still relying on it for the debt, so the law shifts the burden: once you show the item is genuinely back in your hands, or in the hands of an owner-third party, it falls to the creditor to explain why the pledge should still be considered in force.
A presumption, not automatic proof the debt is paid
Because this is a rebuttable presumption, the creditor may still show it should not apply, for instance that the item was returned for repair or safekeeping rather than as a release, or that you took possession without consent. Even where the presumption holds and the pledge is remitted, that speaks only to the security. The underlying loan may still be owed as an ordinary, unsecured debt unless there is separate proof that the obligation itself was paid, condoned, or otherwise extinguished.
What to do if you want the debt itself resolved too
Because Article 1274 only reaches the accessory pledge and leaves the principal loan an open question, do not assume that getting the item back settles what you owe. If your lender agrees the debt is also paid or forgiven, get that acknowledgment in writing at the same time the item is returned, so there is no gap between the two issues. If the return was for some other reason, such as letting you use or repair the item temporarily, keep any message or note that says so, since that is exactly the kind of evidence that can rebut the presumption later on.