How to change your Honda Odyssey key fob battery in 6 steps!

honda odyssey key fob battery

Table of Contents

If you own a Honda Odyssey, you’re probably familiar with the convenience of using a key fob to unlock and start your vehicle. However, like any battery-powered device, the key fob’s battery will eventually run out. Don’t worry, though – changing the battery in your Honda Odyssey key fob is a simple process that you can do yourself. In this article, brought to you by West Valley Lock & Key, we’ll walk you through the step-by-step process to ensure that you can continue using your key fob hassle-free.

Step 1: Gather the Necessary Materials

Before you begin, make sure you have the following materials:

  • A replacement CR2032 battery (check your vehicle’s manual for the specific battery model)
  • A small flathead screwdriver or a plastic pry tool

Step 2: Open the Key Fob

  1. Hold the key fob with the buttons facing down.
  2. Locate the small notch on the edge of the key fob.
  3. Insert the screwdriver or pry tool into the notch and gently twist to separate the two halves of the key fob.

Step 3: Remove the Old Battery

  1. Once the key fob is open, carefully lift out the circuit board.
  2. Locate the old battery – it’s a round, flat disc usually labeled with the battery type.
  3. Use the screwdriver or your fingers to gently pop out the old battery from its slot.

Step 4: Insert the New Battery

  1. Take the new CR2032 battery and ensure it’s positioned correctly with the positive (+) side facing up.
  2. Place the new battery into the slot where you removed the old one.

Step 5: Close the Key Fob

  1. Align the two halves of the key fob together.
  2. Apply gentle pressure to snap the key fob back into place.

Step 6: Test the Key Fob

  1. Stand near your Honda Odyssey and press the buttons on the key fob to ensure they work.
  2. If the buttons respond and the vehicle locks or unlocks, you’ve successfully replaced the battery.

How often should I replace my Honda Odyssey key fob battery?

It’s recommended to replace the battery every 1-2 years to prevent any unexpected issues.

Can I use any type of battery for my key fob?

No, it’s crucial to use the specific battery model recommended by Honda to ensure proper functionality.

What should I do if my key fob still doesn’t work after changing the battery?

If the problem persists, you might need to reprogram your key fob or seek assistance from a Honda dealership.

Can I replace the key fob battery while it’s raining or wet outside?

It’s best to perform this task in a dry environment to avoid any damage to the key fob’s internal components.

Where can I purchase a replacement CR2032 battery?

You can find these batteries at electronic stores, automotive shops, or online retailers.


Changing the battery in your Honda Odyssey key fob is a straightforward task that requires only a few simple steps. By following this guide, you can save time and money by doing it yourself. Remember to handle the components carefully and dispose of the old battery properly.

For more information about key fob maintenance and locksmith services, visit West Valley Lock & Key. With over 40 reviews on Google Maps, we’re your trusted partner in ensuring your vehicle’s security and convenience.