Honda Civic key battery
9th gen (FK2/FK3)
2015–2022How to change a fixed remote battery
- Find the slot or screw on the edge or back of the remote. Undo the screw if there is one.
- Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot and twist gently to open the case. Keep it off the circuit board and contacts.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR2032 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
How to change a smart key battery
- Slide the release catch and pull out the emergency key blade.
- Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot the blade leaves and twist gently to part the case. Keep it off the circuit board and contacts.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR2032 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
8th generation European hatchback
2006–2011- Remote head keyCR1616
- TransponderNo battery
A key with no buttons has no battery. It starts the car using a chip that needs no power.
How to change a remote head key battery
- Look for a small screw or a slot along the seam of the plastic head. Undo the screw if there is one.
- Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot and twist gently to part the head. Keep it off the circuit board and contacts.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR1616 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
North American models
11th gen
2022–2024- Smart keyCR2032
10th gen
2016–20219th gen (FB/FG)
2012–20158th gen
2006–2011- Remote head keyCR1616
- TransponderNo battery
A key with no buttons has no battery. It starts the car using a chip that needs no power.
For locksmiths · 9th gen
- KeysFixed remote · Smart key
- Tools confirmed10
- Transponder chipSubscribers
- Programming procedureSubscribers
Questions
Honda Civic key battery questions
9th gen (2015–2022): CR2032 in the fixed remote and smart key. 8th generation European hatchback (2006–2011): CR1616 in the remote head key.