--- title: "Hyundai Elantra Key Fob Battery: CR2032" description: "How the Hyundai Elantra key fob battery specification changed from 2012 to 2025, compared generation by generation. The Hyundai Elantra key fob takes a CR2032 coin cell. How to open the fob without breaking it, and which substitutions actually work." url: "https://whichcarparts.com/cars/hyundai/elantra/key-fob-battery" updated: "2026-08-21" --- # Hyundai Elantra Key Fob Battery Type and Replacement The specification is consistent across every generation we hold data for. ## Has the Hyundai Elantra key fob battery specification changed by year? | Model years | Fob battery | | --- | --- | | [2021-2025](https://whichcarparts.com/cars/hyundai/elantra/2021-2025/key-fob-battery) | CR2032 | | [2017-2020](https://whichcarparts.com/cars/hyundai/elantra/2017-2020/key-fob-battery) | CR2032 | | [2012-2016](https://whichcarparts.com/cars/hyundai/elantra/2012-2016/key-fob-battery) | CR2032 | ## Full specifications by generation The key fob battery on a Hyundai Elantra 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. - [2021-2025 Hyundai Elantra Key fob battery](https://whichcarparts.com/cars/hyundai/elantra/2021-2025/key-fob-battery) - [2017-2020 Hyundai Elantra Key fob battery](https://whichcarparts.com/cars/hyundai/elantra/2017-2020/key-fob-battery) - [2012-2016 Hyundai Elantra Key fob battery](https://whichcarparts.com/cars/hyundai/elantra/2012-2016/key-fob-battery) ## Hyundai Elantra key fob battery: common questions ### What battery does the Hyundai Elantra key fob take? A single CR2032 coin cell. ### Can you use a CR2032 instead of a CR2025 in a Hyundai Elantra key fob? This fob takes a CR2032, 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 Hyundai Elantra 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 - [Ontario Hyundai, Elantra oil type & capacity by model year (2021-2026 engines)](https://www.ontariohyundai.com/service/service-and-parts-tips/hyundai-elantra-oil-type/) - [AMSOIL lookup, 2022 Elantra 2.0L Smartstream MPI oil spec/capacity](https://www.amsoil.com/lookup/auto-and-light-truck/2022/hyundai/elantra/2-0l-4-cyl-engine-code-g-g/) - [AMSOIL lookup, 2022 Elantra 1.6L Hybrid oil spec/capacity](https://www.amsoil.com/lookup/auto-and-light-truck/2022/hyundai/elantra/1-6l-4-cyl-engine-code-c-c/) - [AMSOIL lookup, 2022 Elantra N 2.0L Turbo oil spec/capacity](https://www.amsoil.com/lookup/auto-and-light-truck/2022/hyundai/elantra-n/2-0l-4-cyl-engine-code-h-h-turbo/) - [OilShop.ca, 2025 Elantra N oil type, capacity, filter](https://www.oilshop.ca/blog/2025-hyundai-elantra-n-oil-type-oil-filter-oil-change-interval-and-oil-capacity-information) - [Konig Wheels fit check, Elantra N factory wheel/tire fitment (245/35R19, 5x114.3)](https://konigwheels.com/blogs/fit-check/hyundai-elantra-n-fit-check) - [Michelin USA, Elantra N tire sizes and pressures](https://www.michelinman.com/auto/manufacturers/hyundai/elantra-n) - [Paragon/EBay, Elantra N 360mm front brake rotor OE diameter](https://paragonbrakes.com/paragon-2-piece-rotors-front-pair-360x30mm-hyundai-elantra-n/) - [NHTSA recall 22V-123/22V-218/22V-354, seat belt pretensioner explosion risk](https://api.nhtsa.gov/recalls/recallsByVehicle?make=hyundai&model=elantra&modelYear=2022) - [NHTSA recall 24V-879, rearview camera failure](https://api.nhtsa.gov/recalls/recallsByVehicle?make=hyundai&model=elantra&modelYear=2022) - [NHTSA recall 24V-308, EGR valve electrical short](https://api.nhtsa.gov/recalls/recallsByVehicle?make=hyundai&model=elantra&modelYear=2024) - [fueleconomy.gov, 2022 Elantra EPA ratings (all trims incl. Hybrid, N)](https://www.fueleconomy.gov/feg/bymodel/2022_Hyundai_Elantra.shtml) - [Edmunds, 2022 Elantra Hybrid specs (curb weight, fuel tank, mpg)](https://www.edmunds.com/hyundai/elantra/2022/hybrid/features-specs/) - [Cabin air filter 97133-L1000 fitment (2021-2022 Elantra)](https://www.ebay.com/itm/227409746681) ## Find your exact Elantra - [2025](https://whichcarparts.com/cars/hyundai/elantra/2025) - [2024](https://whichcarparts.com/cars/hyundai/elantra/2024) - [2023](https://whichcarparts.com/cars/hyundai/elantra/2023) - [2022](https://whichcarparts.com/cars/hyundai/elantra/2022) - [2021](https://whichcarparts.com/cars/hyundai/elantra/2021) - [2020](https://whichcarparts.com/cars/hyundai/elantra/2020) - [2019](https://whichcarparts.com/cars/hyundai/elantra/2019) - [2018](https://whichcarparts.com/cars/hyundai/elantra/2018) - [2017](https://whichcarparts.com/cars/hyundai/elantra/2017) - [2016](https://whichcarparts.com/cars/hyundai/elantra/2016) - [2015](https://whichcarparts.com/cars/hyundai/elantra/2015) - [2014](https://whichcarparts.com/cars/hyundai/elantra/2014) - [2013](https://whichcarparts.com/cars/hyundai/elantra/2013) - [2012](https://whichcarparts.com/cars/hyundai/elantra/2012) More Hyundai Elantra guides: - [Oil & filter](https://whichcarparts.com/cars/hyundai/elantra/oil) - [Battery](https://whichcarparts.com/cars/hyundai/elantra/battery) - [Tires & wheels](https://whichcarparts.com/cars/hyundai/elantra/tires) - [Wiper blades](https://whichcarparts.com/cars/hyundai/elantra/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/hyundai/elantra/filters) - [Bulbs](https://whichcarparts.com/cars/hyundai/elantra/bulbs) - [Brakes](https://whichcarparts.com/cars/hyundai/elantra/brakes) - [Fluids](https://whichcarparts.com/cars/hyundai/elantra/fluids) - [Service schedule](https://whichcarparts.com/cars/hyundai/elantra/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/hyundai/elantra/common-problems) - [Oil light reset](https://whichcarparts.com/cars/hyundai/elantra/oil-reset) - [Specs](https://whichcarparts.com/cars/hyundai/elantra/specs) Specifications vary with engine option, production date, and market.