The key fob for most 2017 Honda models uses a CR2032 3-volt lithium coin battery.
Common battery type for 2017 Honda key fobs
In most 2017 Honda vehicles—such as the Civic, Accord, CR-V, Fit, and Pilot—the remote uses a CR2032 coin cell. This small, widely available battery is designed to fit the fob’s contacts and orientation. You can usually confirm by inspecting the back of the old battery or consulting the owner’s manual.
Variations you might encounter
While CR2032 is the standard, a few regional trims or specific fob designs circulating in certain markets may use a different coin cell. If you’re unsure, check the old battery’s markings, or contact a Honda dealer or automotive locksmith to confirm the exact type and any programming requirements.
Do not force a battery into the fob if it doesn’t fit; using an incorrect size or thickness can damage the contacts or housing.
Before attempting a DIY replacement, here are the steps to replace the battery safely and correctly:
- Gather a small flat-head screwdriver or a coin, a CR2032 3V battery, and a clean work area.
- Hold the fob with the buttons facing down and locate the seam along the edge; insert a tool and gently pry to pop apart the two halves.
- Remove the old battery, noting its orientation (positive side typically facing up).
- Insert the new CR2032 with the positive side facing up, ensuring good contact with the terminals.
- Snap the two halves back together until they click securely, then test the remote by locking/unlocking the doors.
If you notice corrosion, bent contacts, or the fob continues to fail after replacement, the issue may be with the circuitry or programming. A dealership or automotive locksmith can diagnose and replace the fob if necessary.
Summary
For most 2017 Honda key fobs, the standard battery is the CR2032 3V lithium coin cell. Replacement involves prying open the fob, swapping in a fresh CR2032 with the correct orientation, and reassembling. If your fob is a regional variant or behaves abnormally after replacement, consult a Honda dealer or qualified locksmith to confirm the exact battery type and ensure proper programming.