Nissan Leaf key fob battery
8 of the 16 model years listed for the Nissan Leaf have a proven battery. The most common answer is CR2025. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2011-2015Smart key
CR2025
FCC ID CWTWB1U808Two sites agree: uhs-hardware.com and americankeysupply.com (checked Nov 1, 2026)
Find CR2025 on Amazon - 2016-2017Unknown
Not confirmed yet
- 2018Smart key
Not confirmed yet
- 2019Smart key
CR2025
Owner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “Recommended battery: CR2025 or equivalent.”
Find CR2025 on Amazon - 2020Smart key
Not confirmed yet
- 2021Smart key
CR2025
Owner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “Recommended battery: CR2025 or equivalent”
Find CR2025 on Amazon - 2022-2023Smart key
Not confirmed yet
- 2024Smart key
CR2025
Owner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “Recommended battery: CR2025 or equivalent”
Find CR2025 on Amazon - 2025Smart key
Not confirmed yet
- 2026Unknown
Not confirmed yet
Changing the battery
Smart key (push-button start)
- Start by freeing the hidden metal key: there is a latch or slide on the case, and the blade comes out once it moves.
- Use the slot where the metal key sat. Twist, do not lever hard, and work along the seam until the halves separate.
- Note which side of the old coin cell faces up (usually the side with the writing), lift it out with a plastic tool, and press the new one in the same way.
- Reassemble, refit the emergency key, and check that the car sees the fob when you press start.
Nissan Intelligent Keys normally hold a mechanical key behind a release knob. With the key out, a small screwdriver in the slot separates the halves.
A CR2025 is 20 mm across and 2.5 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
If a child might have swallowed a coin cell, treat it as an emergency and get to a hospital right away.