--- title: "Toyota Tacoma Key Fob Battery" description: "How the Toyota Tacoma key fob battery specification changed from 2012 to 2025, compared generation by generation. The Toyota Tacoma key fob takes a CR2450, not the CR2032 used by older Toyotas; wrong-battery installs are a common owner mistake coin cell. How to open the fob without breaking it, and which substitutions actually work." url: "https://whichcarparts.com/cars/toyota/tacoma/key-fob-battery" updated: "2026-08-20" --- # Toyota Tacoma Key Fob Battery Type and Replacement The specification is not the same across every year we cover, the table below shows exactly where it changes. ## Has the Toyota Tacoma key fob battery specification changed by year? | Model years | Fob battery | | --- | --- | | [2024-2025](https://whichcarparts.com/cars/toyota/tacoma/2024-2025/key-fob-battery) | CR2450, not the CR2032 used by older Toyotas; wrong-battery installs are a common owner mistake | | [2016-2023](https://whichcarparts.com/cars/toyota/tacoma/2016-2023/key-fob-battery) | CR2032 (smart key); some base flip keys use CR2016. Check the old battery | | [2012-2015](https://whichcarparts.com/cars/toyota/tacoma/2012-2015/key-fob-battery) | CR2032 | ## Full specifications by generation The key fob battery on a Toyota Tacoma is set by its generation, not its model year, so each generation has one page carrying the complete figures, part numbers and fitment notes for every year it covers. - [2024-2025 Toyota Tacoma Key fob battery](https://whichcarparts.com/cars/toyota/tacoma/2024-2025/key-fob-battery) - [2016-2023 Toyota Tacoma Key fob battery](https://whichcarparts.com/cars/toyota/tacoma/2016-2023/key-fob-battery) - [2012-2015 Toyota Tacoma Key fob battery](https://whichcarparts.com/cars/toyota/tacoma/2012-2015/key-fob-battery) ## Toyota Tacoma key fob battery: common questions ### What battery does the Toyota Tacoma key fob take? A single CR2450, not the CR2032 used by older Toyotas; wrong-battery installs are a common owner mistake coin cell. ### Can you use a CR2032 instead of a CR2025 in a Toyota Tacoma key fob? This fob takes a CR2450, not the CR2032 used by older Toyotas; wrong-battery installs are a common owner mistake, 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 Toyota Tacoma 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 - [Toyota USA Newsroom, 2024 Tacoma reveal (powertrains, towing, payload)](https://pressroom.toyota.com/2024-toyota-tacoma-is-the-ultimate-adventure-machine/) - [Toyota USA Newsroom, 2024 Tacoma i-FORCE MAX](https://pressroom.toyota.com/legendary-performance-modern-power-2024-toyota-tacoma-with-i-force-max/) - [2024 Tacoma owner's-manual fluid specs writeup (autoevolution)](https://www.autoevolution.com/news/2024-toyota-tacoma-24l-i4-uses-0w-20-engine-oil-8-speed-auto-takes-ws-transmission-fluid-226181.html) - [AMSOIL product lookup, 2024 Tacoma T24A-FTS capacities](https://www.amsoil.com/lookup/auto-and-light-truck/2024/toyota/tacoma/2-4l-4-cyl-engine-code-t24a-fts-a-turbo/) - [CarComplaints, T-SB-0076-24 Tacoma transmission TSB coverage](https://m.carcomplaints.com/news/2024/toyota-tacoma-transmission-problems-t-sb-0076-24.shtml) - [NHTSA recall lookup, 2024-2025 Tacoma (25V-058, 25V-595, 25V-656, 26V-514)](https://www.nhtsa.gov/recalls) - [Wheel-Size.com, 2024 Tacoma OE fitments](https://www.wheel-size.com/size/toyota/tacoma/2024/) - [fueleconomy.gov, 2024 Tacoma EPA ratings](https://www.fueleconomy.gov/feg/bymodel/2024_Toyota_Tacoma.shtml) - [4GTaco, owner's-manual 12V battery spec and lug torque threads](https://4gtaco.com/threads/2024-4th-gen-tacoma-12v-battery-maintenance.1383/) ## Find your exact Tacoma - [2025](https://whichcarparts.com/cars/toyota/tacoma/2025) - [2024](https://whichcarparts.com/cars/toyota/tacoma/2024) - [2023](https://whichcarparts.com/cars/toyota/tacoma/2023) - [2022](https://whichcarparts.com/cars/toyota/tacoma/2022) - [2021](https://whichcarparts.com/cars/toyota/tacoma/2021) - [2020](https://whichcarparts.com/cars/toyota/tacoma/2020) - [2019](https://whichcarparts.com/cars/toyota/tacoma/2019) - [2018](https://whichcarparts.com/cars/toyota/tacoma/2018) - [2017](https://whichcarparts.com/cars/toyota/tacoma/2017) - [2016](https://whichcarparts.com/cars/toyota/tacoma/2016) - [2015](https://whichcarparts.com/cars/toyota/tacoma/2015) - [2014](https://whichcarparts.com/cars/toyota/tacoma/2014) - [2013](https://whichcarparts.com/cars/toyota/tacoma/2013) - [2012](https://whichcarparts.com/cars/toyota/tacoma/2012) More Toyota Tacoma guides: - [Oil & filter](https://whichcarparts.com/cars/toyota/tacoma/oil) - [Battery](https://whichcarparts.com/cars/toyota/tacoma/battery) - [Tires & wheels](https://whichcarparts.com/cars/toyota/tacoma/tires) - [Wiper blades](https://whichcarparts.com/cars/toyota/tacoma/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/toyota/tacoma/filters) - [Bulbs](https://whichcarparts.com/cars/toyota/tacoma/bulbs) - [Brakes](https://whichcarparts.com/cars/toyota/tacoma/brakes) - [Fluids](https://whichcarparts.com/cars/toyota/tacoma/fluids) - [Service schedule](https://whichcarparts.com/cars/toyota/tacoma/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/toyota/tacoma/common-problems) - [Oil light reset](https://whichcarparts.com/cars/toyota/tacoma/oil-reset) - [Specs](https://whichcarparts.com/cars/toyota/tacoma/specs) Specifications vary with engine option, production date, and market.