
Replacing the battery in your Nissan key fob is a straightforward DIY task that typically takes less than five minutes. The core process involves prying the key fob housing open, swapping the old coin-cell battery (usually a CR2025 or CR2032) for a new one, and snapping the case back together. You'll need a small flat-head tool and a fresh battery.
First, locate the small notch or slot on the key fob. This is designed for you to insert a flat tool, like a small flathead screwdriver or even a coin. Apply gentle pressure to twist and separate the two halves of the plastic housing. Be careful not to use excessive force to avoid damaging the plastic clips.
Once open, you'll see the circular battery secured in a holder. Note the orientation of the old battery; the positive side (+) is usually facing up. Carefully remove the old battery, insert the new one with the correct side up, and press it into place. Before reassembling, test the key fob by pressing a button to ensure the new battery works. Finally, align the two halves of the fob and press firmly until you hear a click, indicating it's securely closed.
Using the correct battery is crucial. While many Nissan fobs use a CR2025, some models use a CR2032. Using the wrong type can lead to poor performance or a poor fit. Here’s a quick reference for common Nissan models.
| Nissan Model (Example) | Typical Key Fob Battery Type | Notes |
|---|---|---|
| Nissan Rogue (2014-2020) | CR2025 | The most common battery type for Nissan Intelligent Keys. |
| Nissan Altima (2019-2023) | CR2032 | Slightly thicker and higher capacity than the CR2025. |
| Nissan Sentra (2020-Present) | CR2025 | Check your owner's manual for the exact specification. |
| Nissan Frontier (2022-Present) | CR2032 | Newer models often use the CR2032. |
| Nissan Leaf (2018-2023) | CR2032 | Ensure the battery is correctly seated to maintain connectivity. |

It's super easy. Just find the little slot on the side of your key fob. Take a dime or a small screwdriver, stick it in there, and give it a twist. The case will pop right open. Swap the little round battery for an identical new one, making sure the plus sign is facing the same way as the old one. Snap it back together and you're done. Took me two minutes last time.


