--- title: "2020-2025 Toyota Corolla Key Fob Battery" description: "The 2020-2025 Toyota Corolla key fob takes a CR2032 (smart key fob, all E210 years) coin cell. How to open the fob without breaking it, and which substitutions actually work." url: "https://whichcarparts.com/cars/toyota/corolla/2020-2025/key-fob-battery" updated: "2026-08-20" --- # 2020-2025 Toyota Corolla Key Fob Battery Type and Replacement The 2020-2025 Toyota Corolla key fob takes a CR2032 (smart key fob, all E210 years) coin cell. How to open the fob without breaking it, and which substitutions actually work. **Quick answer**: The 2020-2025 Toyota Corolla key fob takes a CR2032 (smart key fob, all E210 years) coin-cell battery, available at any pharmacy, hardware store, or online for a few dollars. ## Replacing the 2020-2025 Toyota Corolla 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 Toyota Corolla model years does this cover? These key fob battery specifications apply to every Toyota Corolla built from 2020 through 2025, the E210 (12th generation), compact sedan (tnga-c platform; the corolla hatchback, sold from 2019, shares this platform and most service parts). Nothing in this specification changes between those model years. - [2020 Corolla](https://whichcarparts.com/cars/toyota/corolla/2020) - [2021 Corolla](https://whichcarparts.com/cars/toyota/corolla/2021) - [2022 Corolla](https://whichcarparts.com/cars/toyota/corolla/2022) - [2023 Corolla](https://whichcarparts.com/cars/toyota/corolla/2023) - [2024 Corolla](https://whichcarparts.com/cars/toyota/corolla/2024) - [2025 Corolla](https://whichcarparts.com/cars/toyota/corolla/2025) ## What changed during the 2020-2025 Toyota Corolla | Years | What changed | | --- | --- | | 2020 | Generation launch on TNGA-C: 1.8L (L/LE), 2.0L Dynamic Force (SE/XSE/XLE), and the first US Corolla Hybrid (LE, 121 hp combined). All-LED lighting, four-wheel discs, and LN-format batteries across the board. | | 2021 | Android Auto joins Apple CarPlay as standard; minor equipment shuffles only | | 2023 | Mid-cycle update: new fascias, 8-in touchscreen with Toyota's new multimedia system, Toyota Safety Sense 3.0; hybrid gains SE/XLE trims, available electronic on-demand AWD, and combined output rises to 134-138 hp; the 6-speed manual and the 2.0L Apex edition are dropped | | 2024-2025 | Carryover years; hatchback continues alongside the sedan with the 2.0L only | | 2024 | US L trim dropped; all remaining trims standard with automatic climate control, an 8-in touchscreen, and keyless entry; new GR Corolla-inspired front-end styling | | 2025 | FX Special Edition trim debuts; a larger 10.5-in touchscreen becomes available | ## 2020-2025 Toyota Corolla key fob battery: common questions ### What battery does the 2020-2025 Toyota Corolla key fob take? A single CR2032 (smart key fob, all E210 years) coin cell. ### Can you use a CR2032 instead of a CR2025 in a 2020-2025 Toyota Corolla key fob? This fob takes a CR2032 (smart key fob, all E210 years), 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 Toyota Corolla 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 - [2023 Corolla Owner's Manual, maintenance data (Toyota.com)](https://www.toyota.com/owners/warranty-owners-manuals/digital/article/corolla/2023/om02568u/ch08se010401/) - [Toyota Genuine Battery application chart 2023, ZRE212/ZWE21# = LN1, MZEA12 = LN2 (toyotapartsandservice.com)](https://www.toyotapartsandservice.com/wp-content/uploads/2023/09/03_Batteries2023_hi.pdf) - [Toyota Genuine Spark Plug application chart 2020, E210 plug part numbers (toyotapartsandservice.com)](https://www.toyotapartsandservice.com/wp-content/uploads/2020/08/09_SparkPlugs2020_hi.pdf) - [Toyota Genuine Oil Filter application chart 2020, 90915-YZZF2 for all E210 engines (toyotapartsandservice.com)](https://www.toyotapartsandservice.com/wp-content/uploads/2020/08/06_OilFilters2020_hi.pdf) - [AMSOIL vehicle lookup, 2020 Corolla 2.0L M20A-FKS capacities](https://www.amsoil.com/lookup/auto-and-light-truck/2020/toyota/corolla/2-0l-4-cyl-engine-code-m20a-fks-3/) - [Legacy Toyota, Corolla oil type & capacity by year (dealer service guide)](https://www.legacytoyotadallas.com/service/service-and-parts-tips/toyota-corolla-oil-type-and-capacity/) - [fueleconomy.gov, 2021 Corolla / Corolla Hybrid EPA ratings](https://www.fueleconomy.gov/feg/bymodel/2021_Toyota_Corolla.shtml) - [TirePressure.org, 2021 Toyota Corolla placard pressures](https://tirepressure.org/toyota/corolla/2021) - [NHTSA recall 20V-682, Denso fuel pump](https://static.nhtsa.gov/odi/rcl/2020/RCLRPT-20V682-8151.PDF) - [iFixit, 2018-present Corolla 12V battery replacement (engine-bay location)](https://www.ifixit.com/Guide/2018+2019+2020+2021+2022+2023+2024+2025+2026+Toyota+Corolla+12V+Battery+Replacement/226153) ## Other Toyota Corolla generations - [2014-2019 Toyota Corolla key fob battery](https://whichcarparts.com/cars/toyota/corolla/2014-2019/key-fob-battery) - [2012-2013 Toyota Corolla key fob battery](https://whichcarparts.com/cars/toyota/corolla/2012-2013/key-fob-battery) Or [compare all generations](https://whichcarparts.com/cars/toyota/corolla/key-fob-battery). ## More for the 2020-2025 Toyota Corolla - [Oil & filter](https://whichcarparts.com/cars/toyota/corolla/2020-2025/oil) - [Battery](https://whichcarparts.com/cars/toyota/corolla/2020-2025/battery) - [Tires & wheels](https://whichcarparts.com/cars/toyota/corolla/2020-2025/tires) - [Wiper blades](https://whichcarparts.com/cars/toyota/corolla/2020-2025/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/toyota/corolla/2020-2025/filters) - [Bulbs](https://whichcarparts.com/cars/toyota/corolla/2020-2025/bulbs) - [Brakes](https://whichcarparts.com/cars/toyota/corolla/2020-2025/brakes) - [Fluids](https://whichcarparts.com/cars/toyota/corolla/2020-2025/fluids) - [Service schedule](https://whichcarparts.com/cars/toyota/corolla/2020-2025/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/toyota/corolla/2020-2025/common-problems) - [Oil light reset](https://whichcarparts.com/cars/toyota/corolla/2020-2025/oil-reset) - [Specs](https://whichcarparts.com/cars/toyota/corolla/2020-2025/specs) Specifications vary with engine option, production date, and market.