Lincoln MKC key fob battery
Every model year listed for the Lincoln MKC has a proven battery. The most common answer is 2 x CR2025. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2015-2016Smart key
2 x CR2025
FCC ID M3N-A2C31243300Two sites agree: americankeysupply.com and energizer.com (checked Nov 1, 2026)
Find CR2025 on Amazon - 2017-2019Smart key
CR2450
FCC ID M3N-A2C940780Two sites agree: uhs-hardware.com and energizer.com (checked Nov 1, 2026)
Find CR2450 on Amazon
Changing the battery
Smart key (push-button start)
- Find the small release on the edge or back of the fob and hold it while you pull out the metal emergency key.
- The gap left by the metal key usually has a pry point. A slow twist with a thin flat tool (tape on the tip saves the plastic) opens the two halves.
- Note which side of the old coin cell faces up (usually the side with the writing), lift it out with a plastic tool, and press the new one in the same way.
- Snap the halves back together, slide the metal key home, and press each button, then try the start button from the driver's seat.
Lincoln fobs usually have a release for the emergency key, and the case opens at the slot it leaves.
This key takes two CR2025 cells. Change both at the same time and stack them the way the old pair sat; mixing a fresh cell with a tired one shortens the life of the new one.
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.