https://marvelvsdc.faith/wiki/....Keys_Repair_A_Simple
Key Fob Repair: Replacing the Battery Being tossed around in purses and pockets keys fobs can be damaged and not register presses reliably. This issue can be resolved by replacing the small battery that is usually found in the snap-out case that comes with the majority of car fobs. However, a fresh replacement may not revive your key fob if its internal switch contacts are worn out. There's an easy fix that you can do at home: Replace the battery If your key fob is feeling slow or takes longer than normal to unlock or lock y