2018–2022 Honda Accord Key Fob Battery Type and Replacement

Which Honda Accord model years does this cover?

These key fob battery specifications apply to every Honda Accord built from 2018 through 2022 — the 10th generation, mid-size sedan (fastback roofline; coupe discontinued). Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2018–2022 Honda Accord

• 2018Generation launch: turbo-only lineup, LED low beams standard, V6 and coupe dropped
• 2021Facelift: revised front end, Sport SE trim, hybrid gains steering-wheel deceleration paddles; manual transmission dropped after 2020
• 2022Final year for the 2.0T and 10-speed in the Accord

What battery does the 2018–2022 Honda Accord key fob take?

A single CR2032 coin cell.

Can you use a CR2032 instead of a CR2025 in a 2018–2022 Honda Accord 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 2018–2022 Honda Accord 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.