--- title: "Subaru Outback Key Fob Battery" description: "How the Subaru Outback key fob battery specification changed from 2010 to 2025, compared generation by generation. The Subaru Outback key fob takes a CR2032 (push-button-start smart key, standard across this generation) coin cell. How to open the fob without breaking it, and which substitutions actually work." url: "https://whichcarparts.com/cars/subaru/outback/key-fob-battery" updated: "2026-08-21" --- # Subaru Outback 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 Subaru Outback key fob battery specification changed by year? | Model years | Fob battery | | --- | --- | | [2020-2025](https://whichcarparts.com/cars/subaru/outback/2020-2025/key-fob-battery) | CR2032 (push-button-start smart key, standard across this generation) | | [2015-2019](https://whichcarparts.com/cars/subaru/outback/2015-2019/key-fob-battery) | CR1620 (2015-2016 flip-key remotes); CR2032 on later push-button-start Limited/Touring smart keys. Check which key your trim uses | | [2010-2014](https://whichcarparts.com/cars/subaru/outback/2010-2014/key-fob-battery) | CR1620 (exposed-blade flip key with integrated remote) | ## Full specifications by generation The key fob battery on a Subaru Outback 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. - [2020-2025 Subaru Outback Key fob battery](https://whichcarparts.com/cars/subaru/outback/2020-2025/key-fob-battery) - [2015-2019 Subaru Outback Key fob battery](https://whichcarparts.com/cars/subaru/outback/2015-2019/key-fob-battery) - [2010-2014 Subaru Outback Key fob battery](https://whichcarparts.com/cars/subaru/outback/2010-2014/key-fob-battery) ## Subaru Outback key fob battery: common questions ### What battery does the Subaru Outback key fob take? A single CR2032 (push-button-start smart key, standard across this generation) coin cell. ### Can you use a CR2032 instead of a CR2025 in a Subaru Outback key fob? This fob takes a CR2032 (push-button-start smart key, standard across this generation), 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 Subaru Outback 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 - [Wikipedia, Subaru FB engine (FB25D direct-injection, 2020 Outback/Legacy)](https://en.wikipedia.org/wiki/Subaru_FB_engine) - [AMSOIL lookup, 2022 Outback 2.4L FA24 turbo oil spec/capacity](https://www.amsoil.com/lookup/auto-and-light-truck/2022/subaru/outback/2-4l-4-cyl-engine-code-a-fa24-a-turbo/) - [NHTSA, 19V-664 brake pedal mounting bracket recall (WUL-97)](https://static.nhtsa.gov/odi/rcl/2019/RCLRPT-19V664-6082.PDF) - [NHTSA, 24V-227 front passenger airbag sensor recall](https://static.nhtsa.gov/odi/rcl/2024/RCLRPT-24V227-7296.PDF) - [Out Motorsports, 2022 Outback Wilderness review (260 hp FA24F introduction)](https://www.outmotorsports.com/2021/09/2022-subaru-outback-wilderness-review-off-road/) - [classaction.org, Subaru lawsuit: 2019-2025 vehicles, parasitic battery drain (Taylor v. Subaru)](https://www.classaction.org/news/subaru-lawsuit-says-2019-2025-vehicles-plagued-by-electrical-system-defect-causing-parasitic-battery-drain) - [AutoZone, 2023 Outback wiper blade fitment (26/18/16)](https://www.autozone.com/ignition-tune-up-and-routine-maintenance/wiper-blade-windshield/subaru/outback/2023) - [Edmunds, 2023 Subaru Outback review (XT/Wilderness turbo trim lineup)](https://www.edmunds.com/subaru/outback/2023/) ## Find your exact Outback - [2025](https://whichcarparts.com/cars/subaru/outback/2025) - [2024](https://whichcarparts.com/cars/subaru/outback/2024) - [2023](https://whichcarparts.com/cars/subaru/outback/2023) - [2022](https://whichcarparts.com/cars/subaru/outback/2022) - [2021](https://whichcarparts.com/cars/subaru/outback/2021) - [2020](https://whichcarparts.com/cars/subaru/outback/2020) - [2019](https://whichcarparts.com/cars/subaru/outback/2019) - [2018](https://whichcarparts.com/cars/subaru/outback/2018) - [2017](https://whichcarparts.com/cars/subaru/outback/2017) - [2016](https://whichcarparts.com/cars/subaru/outback/2016) - [2015](https://whichcarparts.com/cars/subaru/outback/2015) - [2014](https://whichcarparts.com/cars/subaru/outback/2014) - [2013](https://whichcarparts.com/cars/subaru/outback/2013) - [2012](https://whichcarparts.com/cars/subaru/outback/2012) - [2011](https://whichcarparts.com/cars/subaru/outback/2011) - [2010](https://whichcarparts.com/cars/subaru/outback/2010) More Subaru Outback guides: - [Oil & filter](https://whichcarparts.com/cars/subaru/outback/oil) - [Battery](https://whichcarparts.com/cars/subaru/outback/battery) - [Tires & wheels](https://whichcarparts.com/cars/subaru/outback/tires) - [Wiper blades](https://whichcarparts.com/cars/subaru/outback/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/subaru/outback/filters) - [Bulbs](https://whichcarparts.com/cars/subaru/outback/bulbs) - [Brakes](https://whichcarparts.com/cars/subaru/outback/brakes) - [Fluids](https://whichcarparts.com/cars/subaru/outback/fluids) - [Service schedule](https://whichcarparts.com/cars/subaru/outback/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/subaru/outback/common-problems) - [Oil light reset](https://whichcarparts.com/cars/subaru/outback/oil-reset) - [Specs](https://whichcarparts.com/cars/subaru/outback/specs) Specifications vary with engine option, production date, and market.