Honda Civic Key Fob Battery Replacement

2014-2021 Models

This vehicle has multiple key fob types. Select your key below.

Most Common

Smart Key Fob (2014–2021)

Battery Type

CR2032

Buy CR2032 on Amazon

✓ OEM Compatible

✓ Free Prime Shipping

Honda Civic Smart Key Fob (2014–2021) Battery Replacement Video

FCC ID: KR5V2X, ACJ932HK1210A

Replacement Steps for Smart Key Fob (2014–2021)

Remove the spare key On the back of the fob, slide the release button to the right and pull out the emergency spare key

Pry open the case Look inside the slot where the spare key was. Insert the tip of the spare key between the two plastic blocks inside and twist or pry to "crack" the case open

Remove the old battery This fob uses a CR2032 battery. You can use a small screwdriver or the spare key to gently pry the battery up from the bottom

Install the new battery Place the new CR2032 battery into the slot and snap it into place

Reassemble the fob Align the two halves of the key fob and press them together until they snap shut

Reinsert the spare key Slide the emergency key back into the fob until it clicks

Alternative

Remote Head Key (2014–2021)

Battery Type

CR1620

Buy CR1620 on Amazon

✓ OEM Compatible

✓ Free Prime Shipping

Honda Civic Remote Head Key (2014–2021) Battery Replacement Video

FCC ID: MLBHLIK6-1T, MLBHLIK6-1TA

Replacement Steps for Remote Head Key (2014–2021)

Tools needed: Small Phillips screwdriver · Small flathead screwdriver

Remove the screw Undo the small Phillips screw that holds the case together and put it somewhere safe.

Open the case Fit a small flathead screwdriver into the notch and twist gently until the halves separate. Work along the edge instead of forcing one spot.

Take out the old battery Note which way the CR1620 faces, then lift it out with a fingernail or a small screwdriver tip.

Fit the new battery Put the new CR1620 in with the positive (+) side facing the same way as the old one, and press it flat into its holder.

Close it up and test Line up the halves and press until they click, refit the screw, then try lock and unlock from a few feet away.

Alternative

Remote Key Fob (2021)

Battery Type

CR1620

Buy CR1620 on Amazon

✓ OEM Compatible

✓ Free Prime Shipping

Honda Civic Remote Key Fob (2021) Battery Replacement Video

FCC ID: MLBHLIK6-1TA

Replacement Steps for Remote Key Fob (2021)

Tools needed: Small Phillips screwdriver · Small flathead screwdriver

Remove the screw Undo the small Phillips screw that holds the case together and put it somewhere safe.

Open the case Fit a small flathead screwdriver into the notch and twist gently until the halves separate. Work along the edge instead of forcing one spot.

Take out the old battery Note which way the CR1620 faces, then lift it out with a fingernail or a small screwdriver tip.

Fit the new battery Put the new CR1620 in with the positive (+) side facing the same way as the old one, and press it flat into its holder.

Close it up and test Line up the halves and press until they click, refit the screw, then try lock and unlock from a few feet away.

Frequently Asked Questions

What battery does a Honda Civic key fob use?

It depends on the key: the Smart Key Fob (2014–2021) uses a CR2032; the Remote Head Key (2014–2021) uses a CR1620; the Remote Key Fob (2021) uses a CR1620. All are 3-volt lithium coin batteries, available at most grocery stores, pharmacies, and online retailers.

How do I know if my Honda Civic key fob battery is dying?

Signs your Honda Civic key fob battery is dying include: reduced range (having to get closer to unlock), intermittent button response, delayed unlocking, the low battery warning on your dashboard, or buttons requiring multiple presses to work.

How long does a Honda Civic key fob battery last?

A Honda Civic key fob battery typically lasts 2-4 years depending on usage. Frequent use, extreme temperatures, and proximity to electronic devices can shorten battery life.

Can I replace my Honda Civic key fob battery myself?

Yes, replacing a Honda Civic key fob battery is a simple DIY task that takes under 5 minutes. You only need a new CR2032 or CR1620 battery and optionally a small flathead screwdriver. No dealer visit or programming is required.

Do I need to reprogram my key fob after replacing the battery?

No, you do not need to reprogram your Honda Civic key fob after replacing the battery. The fob retains its programming during battery changes. Simply insert the new battery and test the buttons.

Where can I buy a CR2032 or CR1620 battery?

CR2032 or CR1620 batteries are available at Walmart, Target, CVS, Walgreens, Amazon, auto parts stores like AutoZone and O'Reilly, and most grocery stores. They typically cost $6-12 for a 2-pack.

Honda Civic Key Fob Battery Replacement

Smart Key Fob (2014–2021)

Remote Head Key (2014–2021)

Remote Key Fob (2021)

Frequently Asked Questions

Related Searches