Fiat 500L key fob battery
3 of the 7 model years listed for the Fiat 500L 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.
- 2014-2016Flip key
CR2032
FCC ID RX2TRF198; 2ADPXTRF198Two sites agree: americankeysupply.com and transponderisland.com (checked Nov 1, 2026)
Find CR2032 on Amazon - 2017Flip key
Not confirmed yet
- 2018-2020Flip key
Not confirmed yet
Changing the battery
Flip key
- Fold the blade out so it is out of the way, or keep it folded if your case opens from the side; the battery sits in the plastic body, not the blade.
- Some flip keys have a screw on the back; others just clip. Remove the screw if there is one, then pry gently at the seam.
- Take out the old cell, noting which side faced you, and fit the new one the same way.
- Close it up, check the blade still flips cleanly, and test the buttons 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.
If a child might have swallowed a coin cell, treat it as an emergency and get to a hospital right away.