--- title: "2012-2021 Jeep Grand Cherokee Key Fob Battery: CR2032" description: "The 2012-2021 Jeep Grand Cherokee 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/grand-cherokee/2012-2021/key-fob-battery" updated: "2026-08-20" --- # 2012-2021 Jeep Grand Cherokee Key Fob Battery Type and Replacement The 2012-2021 Jeep Grand Cherokee key fob takes a CR2032 coin cell. How to open the fob without breaking it, and which substitutions actually work. **Quick answer**: The 2012-2021 Jeep Grand Cherokee key fob takes a CR2032 coin-cell battery, available at any pharmacy, hardware store, or online for a few dollars. ## Replacing the 2012-2021 Jeep Grand Cherokee 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 Grand Cherokee model years does this cover? These key fob battery specifications apply to every Jeep Grand Cherokee built from 2012 through 2021, the WK2 (4th generation), mid-size 2-row suv. Nothing in this specification changes between those model years. - [2012 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2012) - [2013 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2013) - [2014 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2014) - [2015 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2015) - [2016 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2016) - [2017 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2017) - [2018 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2018) - [2019 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2019) - [2020 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2020) - [2021 Grand Cherokee](https://whichcarparts.com/cars/jeep/grand-cherokee/2021) ## What changed during the 2012-2021 Jeep Grand Cherokee | Years | What changed | | --- | --- | | 2012 | Launch of the 6.4L SRT8; carries over 3.6L Pentastar/5.7L HEMI lineup from 2011 introduction | | 2014 | Mid-cycle facelift: new front/rear fascias, 8-speed automatic standard, 3.0L EcoDiesel V6 introduced, monostable rotary shifter introduced (see rollaway recall) | | 2017 | Minor refresh: revised grille/lighting, Uconnect updates | | 2018 | SRT Trackhawk introduced with the 707-hp supercharged 6.2L | | 2019 | Final year for the 3.0L EcoDiesel V6 in the US Grand Cherokee | | 2021 | Final full model year of the WK2 as the primary Grand Cherokee nameplate | | 2022 | WK2 continues alongside the new WL for one more year, marketed as "Grand Cherokee WK" in reduced Laredo E, Laredo X, and Limited trim, 3.6L Pentastar only, not to be confused with the WL redesign sold in parallel | ## 2012-2021 Jeep Grand Cherokee key fob battery: common questions ### What battery does the 2012-2021 Jeep Grand Cherokee key fob take? A single CR2032 coin cell. ### Can you use a CR2032 instead of a CR2025 in a 2012-2021 Jeep Grand Cherokee 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 2012-2021 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 - [Wikipedia, Jeep Grand Cherokee (WK2), engine table and generation history](https://en.wikipedia.org/wiki/Jeep_Grand_Cherokee_(WK2)) - [NHTSA recall 14V-530, TIPM fuel pump relay](https://static.nhtsa.gov/odi/rcl/2014/RCLRPT-14V530-6862.PDF) - [NHTSA recall 16V-240, monostable shifter rollaway](https://static.nhtsa.gov/odi/rcl/2016/RCLRPT-16V240-9145.PDF) - [NHTSA recall 20V-699, EcoDiesel EGR cooler](https://static.nhtsa.gov/odi/rcl/2020/RCLRPT-20V699-5290.PDF) - [Fontana CDJR, Jeep Grand Cherokee Oil Type & Capacity Guide (2011-2026), aggregated by-engine oil specs](https://www.fontanacdjr.com/service-department/service-and-parts-tips/jeep-grand-cherokee-oil-type/) - [Victorville Motors, Jeep Grand Cherokee Oil Type & Capacity](https://www.victorvillemotors.com/service-department/service-tips/jeep-grand-cherokee-oil-type-capacity/) - [Collierville CDJR, Jeep Grand Cherokee Bolt Pattern Guide (1999-2026)](https://www.colliervillechryslerdodgejeepram.com/service-department/service-tips/jeep-grand-cherokee-bolt-pattern/) - [Wheel-Size.com, 2016 Jeep Grand Cherokee wheel/tire fitments](https://www.wheel-size.com/size/jeep/grand-cherokee/2016/) - [Firkins CJ, How to Reset the Oil Life Indicator on a Jeep Grand Cherokee](https://www.firkinscj.com/blog/how-to-reset-the-oil-life-indicator-on-a-jeep-grand-cherokee/) - [Suncore Industries, Common Quadra-Lift air suspension issues (WK2)](https://www.suncoreindustries.com/product/26221/common-quadralift-air-suspension-issues-and-strut-or-spring-replacement-options-for-your-jeep-grand-cherokee-wk2) ## Other Jeep Grand Cherokee generations - [2022-2025 Jeep Grand Cherokee key fob battery](https://whichcarparts.com/cars/jeep/grand-cherokee/2022-2025/key-fob-battery) Or [compare all generations](https://whichcarparts.com/cars/jeep/grand-cherokee/key-fob-battery). ## More for the 2012-2021 Jeep Grand Cherokee - [Oil & filter](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/oil) - [Battery](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/battery) - [Tires & wheels](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/tires) - [Wiper blades](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/filters) - [Brakes](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/brakes) - [Fluids](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/fluids) - [Service schedule](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/common-problems) - [Oil light reset](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/oil-reset) - [Specs](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/specs) Specifications vary with engine option, production date, and market.