--- title: "2012-2017 Jeep Wrangler Key Fob Battery: CR2032" description: "The 2012-2017 Jeep Wrangler 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/jeep/wrangler/2012-2017/key-fob-battery" updated: "2026-08-20" --- # 2012-2017 Jeep Wrangler Key Fob Battery Type and Replacement The 2012-2017 Jeep Wrangler key fob takes a CR2032 coin cell. How to open the fob without breaking it, and which substitutions actually work. **Quick answer**: The 2012-2017 Jeep Wrangler key fob takes a CR2032 coin-cell battery, available at any pharmacy, hardware store, or online for a few dollars. ## Replacing the 2012-2017 Jeep Wrangler 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 Jeep Wrangler model years does this cover? These key fob battery specifications apply to every Jeep Wrangler built from 2012 through 2017, the JK (2007-2018 platform; US 2012-2017 shown), off-road suv, solid front/rear axle (2-door; 4-door unlimited). Nothing in this specification changes between those model years. - [2012 Wrangler](https://whichcarparts.com/cars/jeep/wrangler/2012) - [2013 Wrangler](https://whichcarparts.com/cars/jeep/wrangler/2013) - [2014 Wrangler](https://whichcarparts.com/cars/jeep/wrangler/2014) - [2015 Wrangler](https://whichcarparts.com/cars/jeep/wrangler/2015) - [2016 Wrangler](https://whichcarparts.com/cars/jeep/wrangler/2016) - [2017 Wrangler](https://whichcarparts.com/cars/jeep/wrangler/2017) ## What changed during the 2012-2017 Jeep Wrangler | Years | What changed | | --- | --- | | 2012 | 3.6L Pentastar V6 replaces the old 3.8L V6 across the JK lineup; 5-speed automatic (W5A580) replaces the 4-speed | | 2013 | Moab special edition added; minor trim/options shuffle | | 2015 | Willys Wheeler and Rubicon Hard Rock special editions; no major mechanical changes | | 2017 | Final year of the JK before the JL replaces it for 2018, some 2018-titled JK-based 'Wrangler JK' models were sold as 2018 carryovers alongside the new JL; see JL generation notes | ## 2012-2017 Jeep Wrangler key fob battery: common questions ### What battery does the 2012-2017 Jeep Wrangler key fob take? A single CR2032 coin cell. ### Can you use a CR2032 instead of a CR2025 in a 2012-2017 Jeep Wrangler 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 2012-2017 Jeep Wrangler 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 - [Mopar/AMSOIL OE lookup, 2013 Jeep Wrangler 3.6L oil spec](https://www.amsoil.com/lookup/auto-and-light-truck/2013/jeep/wrangler/3-6l-6-cyl-engine-code-g-erb-h/) - [WranglerForum, 3.6L oil capacity (owner's manual quotes, 6 qt)](https://www.wranglerforum.com/answers/how-many-quarts-of-oil-does-a-jeep-wrangler-3-6-take/) - [WranglerForum, Mopar 3.6L oil filter part numbers (spin-on vs. cartridge)](https://www.wranglerforum.com/threads/mopar-3-6l-oil-filters-difference.1640369/) - [ChallengerTalk, Pentastar 3.6L spark plug part number/gap (Champion RER8ZWYCB4 / Mopar SP149125AD)](https://www.challengertalk.com/threads/spark-plug-replacement-for-3-6l-pentastar.213266/) - [WranglerForum, Rubicon Dana 44 rear diff fluid (75W-140 Mopar synthetic)](https://www.wranglerforum.com/threads/diff-oil-gear-oil-for-rubicon-dana-44-rear.2413691/) - [WranglerForum, JK oil-change light reset procedure (accelerator-pedal method)](https://www.wranglerforum.com/threads/oil-change-notification-reset.147085/) - [au7o.io, 3.6L Pentastar oil cooler/filter housing cracking (2012-2025)](https://au7o.io/known-issues/jeep-wrangler) - [Edmunds, 2012 Jeep Wrangler specs (fuel tank, curb weight)](https://www.edmunds.com/jeep/wrangler/2012/features-specs/) - [Car and Driver, 2012 Jeep Wrangler Sport 4WD 2dr specs/EPA mpg](https://www.caranddriver.com/jeep/wrangler/specs/2012/jeep_wrangler_jeep-wrangler-2-door_2012) - [ExtremeTerrain, Jeep Wrangler JK factory tire sizes by trim](https://www.extremeterrain.com/jeep-wrangler-tire-size-guide.html) ## Other Jeep Wrangler generations - [2018-2025 Jeep Wrangler key fob battery](https://whichcarparts.com/cars/jeep/wrangler/2018-2025/key-fob-battery) Or [compare all generations](https://whichcarparts.com/cars/jeep/wrangler/key-fob-battery). ## More for the 2012-2017 Jeep Wrangler - [Oil & filter](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/oil) - [Battery](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/battery) - [Tires & wheels](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/tires) - [Wiper blades](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/filters) - [Bulbs](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/bulbs) - [Brakes](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/brakes) - [Fluids](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/fluids) - [Service schedule](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/common-problems) - [Oil light reset](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/oil-reset) - [Specs](https://whichcarparts.com/cars/jeep/wrangler/2012-2017/specs) Specifications vary with engine option, production date, and market.