2020–2025 B18 (8th generation)
2020–2025 Nissan Sentra Key Fob Battery Type and Replacement
The 2020–2025 Nissan Sentra key fob takes a CR2032 (Intelligent Key) coin cell. How to open the fob without breaking it, and which substitutions actually work.
Last verified
Quick answer
The 2020–2025 Nissan Sentra key fob takes a CR2032 (Intelligent Key) coin-cell battery, available at any pharmacy, hardware store, or online for a few dollars.
Replacing the 2020–2025 Nissan Sentra key fob battery
- Pry the fob open gently at the seam with a small flathead screwdriver or a coin, working around the edge. Many fobs have a hidden release slot near the key ring or emergency-key blade.
- Note the battery orientation (usually positive side up) before removing the old cell.
- Avoid touching the new battery's faces with bare fingers; skin oils can shorten its life.
- If the fob doesn't work after replacement, check that the battery is seated fully and the contacts weren't bent. Most vehicles do not need re-pairing after a battery change.
Which Nissan Sentra model years does this cover?
These key fob battery specifications apply to every Nissan Sentra built from 2020 through 2025 — the B18 (8th generation), compact sedan (independent rear suspension). Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.
What changed during the 2020–2025 Nissan Sentra
- 2020Generation launch: 2.2 in wider, independent rear suspension, 149-hp MR20DD, CVT only, Safety Shield 360 standard
- 2023Minor equipment shuffle; last pre-facelift year
- 2024Facelift: new front fascia and grille, updated wheels and infotainment, slightly better EPA ratings; mechanical specs carry over
- 2025Carryover year, final year of the B18 covered here (an all-new Sentra follows for 2026)
2020–2025 Nissan Sentra key fob battery: common questions
What battery does the 2020–2025 Nissan Sentra key fob take?
- A single CR2032 (Intelligent Key) coin cell.
Can you use a CR2032 instead of a CR2025 in a 2020–2025 Nissan Sentra key fob?
- This fob takes a CR2032 (Intelligent Key), so start there. The two cells share a 20 mm diameter but differ in thickness, and the thicker one does not always seat in a housing built for the thinner.
How do you open a 2020–2025 Nissan Sentra key fob?
- Slide out the mechanical emergency key first, which usually releases a catch, then part the halves with a plastic pry tool or a coin wrapped in tape. A screwdriver will mark the case and can crack the seam.
Sources
- 2021 Nissan Sentra Owner's Manual (capacities, NS-3, bulbs, schedule, CR2032, tires)
- NHTSA recall 23V-581, tie rod assembly, 2020–2022 Sentra
- NHTSA recalls, 2024/2025 Sentra (driveshaft 24V-304, 26V-410)
- AMSOIL lookup, 2020 Sentra 2.0L MR20DD (0W-20, drain plug 22–29 ft-lb)
- KBB / Car and Driver, 2020 Sentra specs (149 hp, 3,047 lb curb weight)
- Go-Parts, 2020–2025 Sentra rear brakes (260mm discs SV/SR, drums S)
- Nissan parts, 15208-65F0E oil filter
- fueleconomy.gov, 2021 Sentra EPA ratings