--- title: "Jeep Grand Cherokee Key Fob Battery: CR2450" description: "How the Jeep Grand Cherokee key fob battery specification changed from 2012 to 2025, compared generation by generation. The Jeep Grand Cherokee key fob takes a CR2450 coin cell. How to open the fob without breaking it, and which substitutions actually work." url: "https://whichcarparts.com/cars/jeep/grand-cherokee/key-fob-battery" updated: "2026-08-20" --- # Jeep Grand Cherokee 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 Jeep Grand Cherokee key fob battery specification changed by year? | Model years | Fob battery | | --- | --- | | [2022-2025](https://whichcarparts.com/cars/jeep/grand-cherokee/2022-2025/key-fob-battery) | CR2450 | | [2012-2021](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/key-fob-battery) | CR2032 | ## Full specifications by generation The key fob battery on a Jeep Grand Cherokee 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. - [2022-2025 Jeep Grand Cherokee Key fob battery](https://whichcarparts.com/cars/jeep/grand-cherokee/2022-2025/key-fob-battery) - [2012-2021 Jeep Grand Cherokee Key fob battery](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/key-fob-battery) ## Jeep Grand Cherokee key fob battery: common questions ### What battery does the Jeep Grand Cherokee key fob take? A single CR2450 coin cell. ### Can you use a CR2032 instead of a CR2025 in a Jeep Grand Cherokee key fob? This fob takes a CR2450, 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 Jeep Grand Cherokee 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 - [Jeep Garage forum, "WL V8 no longer an option in 2 Row Grand Cherokee"](https://www.jeepgarage.org/threads/wl-v8-no-longer-an-option-in-2-row-grand-cherokee.241866/) - [Autoevolution, "2023 Jeep Grand Cherokee Drops 5.7L HEMI V8, Grand Cherokee L Still Has It"](https://www.autoevolution.com/news/2023-jeep-grand-cherokee-drops-57l-hemi-v8-grand-cherokee-l-still-has-it-207348.html) - [Car and Driver, 2022 Jeep Grand Cherokee 4xe Hybrid specs](https://www.caranddriver.com/jeep/grand-cherokee-4xe-2022) - [NHTSA press release, Jeep Wrangler/Grand Cherokee 4xe high-voltage battery "park outside" recall](https://www.nhtsa.gov/press-releases/park-outside-recall-jeep-wrangler-phev) - [NHTSA recall 23V-352, steering intermediate shaft](https://static.nhtsa.gov/odi/rcl/2023/RCLRPT-23V352-5968.PDF) - [NHTSA recall 23V-413, rear coil spring detachment](https://static.nhtsa.gov/odi/rcl/2023/RCLRPT-23V413-6565.PDF) - [Jeep Garage forum, WL ESS (Stop/Start) auxiliary battery location thread](https://www.jeepgarage.org/threads/grand-cherokee-wl-ess-stop-start-system-battery-location.245932/) - [Cabral CDJR, How to Change the Battery on a Jeep Grand Cherokee (2025 model, under passenger/driver seat)](https://www.cabralchryslerjeepdodge.com/blog/how-to-change-the-battery-on-a-jeep-grand-cherokee) - [Fontana CDJR, Jeep Grand Cherokee Oil Type & Capacity Guide (2011-2026)](https://www.fontanacdjr.com/service-department/service-and-parts-tips/jeep-grand-cherokee-oil-type/) - [Reddit r/GrandCherokee, 2025 GC losing 5.7/3.6, 4-cyl turbo/4xe only discussion](https://www.reddit.com/r/GrandCherokee/comments/1cexvv9/2025_gc_losing_57_36_engines/) ## Find your exact Grand Cherokee - [2025](https://whichcarparts.com/cars/jeep/grand-cherokee/2025) - [2024](https://whichcarparts.com/cars/jeep/grand-cherokee/2024) - [2023](https://whichcarparts.com/cars/jeep/grand-cherokee/2023) - [2022](https://whichcarparts.com/cars/jeep/grand-cherokee/2022) - [2021](https://whichcarparts.com/cars/jeep/grand-cherokee/2021) - [2020](https://whichcarparts.com/cars/jeep/grand-cherokee/2020) - [2019](https://whichcarparts.com/cars/jeep/grand-cherokee/2019) - [2018](https://whichcarparts.com/cars/jeep/grand-cherokee/2018) - [2017](https://whichcarparts.com/cars/jeep/grand-cherokee/2017) - [2016](https://whichcarparts.com/cars/jeep/grand-cherokee/2016) - [2015](https://whichcarparts.com/cars/jeep/grand-cherokee/2015) - [2014](https://whichcarparts.com/cars/jeep/grand-cherokee/2014) - [2013](https://whichcarparts.com/cars/jeep/grand-cherokee/2013) - [2012](https://whichcarparts.com/cars/jeep/grand-cherokee/2012) More Jeep Grand Cherokee guides: - [Oil & filter](https://whichcarparts.com/cars/jeep/grand-cherokee/oil) - [Battery](https://whichcarparts.com/cars/jeep/grand-cherokee/battery) - [Tires & wheels](https://whichcarparts.com/cars/jeep/grand-cherokee/tires) - [Wiper blades](https://whichcarparts.com/cars/jeep/grand-cherokee/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/jeep/grand-cherokee/filters) - [Brakes](https://whichcarparts.com/cars/jeep/grand-cherokee/brakes) - [Fluids](https://whichcarparts.com/cars/jeep/grand-cherokee/fluids) - [Service schedule](https://whichcarparts.com/cars/jeep/grand-cherokee/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/jeep/grand-cherokee/common-problems) - [Oil light reset](https://whichcarparts.com/cars/jeep/grand-cherokee/oil-reset) - [Specs](https://whichcarparts.com/cars/jeep/grand-cherokee/specs) Specifications vary with engine option, production date, and market.