Replacing the Battery in a Honda Key Fob: Step-by-Step Guide

PDF download Download Article
A user-friendly guide to switching the battery in a Honda keyless remote
PDF download Download Article

Is the battery low in your Honda key fob? If you're having trouble unlocking your car or SUV from a distance, this likely means your battery needs to be replaced. Luckily, this can be done in a few simple steps. You'll just need a new CR2032 battery to replace the old one. This wikiHow will show you how to change the battery for your Honda vehicle's low or dead key fob.

Things You Should Know

  • You'll need a CR2032 circular battery for your Honda key fob.
  • Push the tab on the back and remove the spare key. Use the key to twist the plastic nubs apart, and pry open the case.
  • Press the small square and remove the old battery. Continue holding the square as you put the new battery in.

Steps

PDF download Download Article
  1. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/39\/Change-Battery-in-Honda-Key-Fob-Step-1.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-1.jpg","bigUrl":"\/images\/thumb\/3\/39\/Change-Battery-in-Honda-Key-Fob-Step-1.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    If you're looking at the side with the lock and unlock buttons, flip the key fob over. You should see a small tab close to the keyring end. [1]
  2. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/6e\/Change-Battery-in-Honda-Key-Fob-Step-2.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-2.jpg","bigUrl":"\/images\/thumb\/6\/6e\/Change-Battery-in-Honda-Key-Fob-Step-2.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    The spare key is attached to the keyring end. Pushing the tab unlocks the spare key from the key fob.
    • Once the key is removed, you should see two plastic nubs on the inside of the key fob.
    Advertisement
  3. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/79\/Change-Battery-in-Honda-Key-Fob-Step-3.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-3.jpg","bigUrl":"\/images\/thumb\/7\/79\/Change-Battery-in-Honda-Key-Fob-Step-3.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    The key can be used to pry apart the two sides of the key fob. Twisting the key between the two plastic nubs will create a gap that you can use to fully open the key fob.
  4. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/01\/Change-Battery-in-Honda-Key-Fob-Step-4.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-4.jpg","bigUrl":"\/images\/thumb\/0\/01\/Change-Battery-in-Honda-Key-Fob-Step-4.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    You should have the half with the lock/unlock buttons and the half with the CR2032 3V Lithium coin battery.
  5. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/d\/d0\/Change-Battery-in-Honda-Key-Fob-Step-5.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-5.jpg","bigUrl":"\/images\/thumb\/d\/d0\/Change-Battery-in-Honda-Key-Fob-Step-5.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    This square needs to be pressed to free the battery located just below it.
  6. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c1\/Change-Battery-in-Honda-Key-Fob-Step-6.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-6.jpg","bigUrl":"\/images\/thumb\/c\/c1\/Change-Battery-in-Honda-Key-Fob-Step-6.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-6.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    You can use your fingernail to gently pop the old battery out.
  7. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c8\/Change-Battery-in-Honda-Key-Fob-Step-7.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-7.jpg","bigUrl":"\/images\/thumb\/c\/c8\/Change-Battery-in-Honda-Key-Fob-Step-7.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-7.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    The positive side (+) should be facing you as you put the battery in. Place your thumb on the small square again, and then slide the battery in. It should click when it's properly placed.
  8. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a0\/Change-Battery-in-Honda-Key-Fob-Step-8.jpg\/v4-460px-Change-Battery-in-Honda-Key-Fob-Step-8.jpg","bigUrl":"\/images\/thumb\/a\/a0\/Change-Battery-in-Honda-Key-Fob-Step-8.jpg\/v4-728px-Change-Battery-in-Honda-Key-Fob-Step-8.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    Align the shell with the proper side, and then press firmly to snap it back together. Be sure to slide the spare key back in its slot and snap it in place.
    • Your Honda key fob's battery is now replaced.
    • You shouldn't have to program the keys again, but test the buttons to confirm they work properly.
    9. Advertisement

Get Car Support Solve Any Problem

wH
Hi there! Do you have a question about how to diagnose or fix a problem with your car? I’ve read the manual so you don’t have to. Select your make, model, and year, then ask away!
*
*

How Do You Replace The Battery In a Car Key Fob?


Expert Q&A

Ask a Question
200 characters left
Include your email address to get a message when this question is answered.
Submit
      Advertisement

      Tips

      Submit a Tip
      All tip submissions are carefully reviewed before being published
      Name
      Please provide your name and last initial
      Submit
      Thanks for submitting a tip for review!

      You Might Also Like

      How to
      Siphon Gas
      Step-by-Step Methods for Adjusting a Carburetor
      How to
      Change a Fuel Filter
      How to
      Replace a Catalytic Converter
      How to
      Replace the Fuel Injectors in Your Vehicle
      How to
      Test Fuel Injectors
      What Causes White Smoke from Your Muffler (or Engine Bay)?
      Has Your Catalytic Converter Been Stolen? How to Tell and What to Do If It Has Been
      How to
      Patch an Exhaust Pipe
      How to
      Clean a Fuel Filter
      How to
      Check Your Fuel Pump
      How to
      Install an Exhaust System
      How to
      Replace a Muffler
      How to
      Install a Gas Cap like a Mechanic
      Advertisement

      References

      1. ↑ https://www.hondainfocenter.com/2023/Civic-Sedan/Feature-Guide/Exterior-Features/Key-Fob-and-Keyhole/

      About This Article

      Thanks to all authors for creating a page that has been read 9,677 times.

      Did this article help you?

      Advertisement