Jeep Wrangler key fob battery
2 of the 13 model years listed for the Jeep Wrangler have a proven battery. The most common answer is CR2032. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 1996-2001Unknown
Not confirmed yet
- 2002Remote (separate)
Not confirmed yet
- 2003-2006Unknown
Not confirmed yet
- 2016Remote (RKE transmitter)
CR2032
Owner's manual: carmanualsonline.info (checked Nov 1, 2026)
Find CR2032 on Amazon - 2023Key fob
CR2450
Owner's manual: carmanualsonline.info (checked Nov 1, 2026)
Find CR2450 on Amazon
Changing the battery
Separate remote fob
- The remote is a small standalone unit. You will not need to touch the ignition key at all.
- Turn it over: some older fobs use one small screw, newer ones just clip. Pry at the seam once any screw is out.
- Replace the cell, keeping the + side where it was, and check the small metal tab still touches it.
- Snap the case shut and watch for the lights to flash when you press lock at the car.
A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
A CR2450 is 24.5 mm across and 5.0 mm thick, much fatter than a CR2032. A thinner cell will rattle and lose contact, so buy the exact size.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.