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How to Replace the Key Fob Battery of a Nissan Sentra

Model: Nissan Sentra MK 8, B18 - Years 2020-2026
Part: Key

Replacing the key fob battery of a Nissan Sentra is a simple and quick task. Take the key fob from your vehicle and pull the lever on the back of the casing: this will allow you to extract the metal key. At this point, use your fingers to pry open the edges of the fob to access the compartment where the battery resides. Once the fob is open, you will see the circuit board and the battery to be replaced; proceed to remove the old battery and replace it. The required model for this fob is a flat CR 2025 battery rated at 3V.

Updated on 15 June 2026 by ScegliAuto

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by ScegliAuto

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