How to Replace Toyota Camry Key Fob Battery: Step-by-Step Guide

Ever found yourself locked out of your Toyota Camry because your key fob battery died at the worst possible moment? Frustrating, right? Don’t worry, you’re not alone. It happens to the best of us. But what if I told you that changing the battery in your Toyota Camry key fob is easier than you think?

Step 1: Gather the necessary tools

When changing the battery in your Toyota Camry key fob, you’ll need some essential tools to get the job done smoothly. Here’s what you’ll need:

  • New CR2032 battery
  • Small flat-head screwdriver
  • Small Phillips head screwdriver

Make sure to have these tools ready before you begin the battery replacement process.

Step 2: Open the key fob

To open the key fob of your Toyota Camry, you’ll need to carefully pry it apart. Here’s how you can do it:

  1. Identify the Seam: Take a close look at your key fob to locate the seam where the two halves connect.
  2. Use a Flat-head Screwdriver: Insert a small flat-head screwdriver into the seam. Gently twist the screwdriver to separate the two halves.
  3. Work Your Way Around: Slowly move the screwdriver along the seam, applying light pressure to pop open the key fob.
  4. Be Gentle: Avoid using excessive force to prevent damaging the key fob or losing any internal components.
  5. Separate the Halves: Once you’ve loosened the key fob, carefully separate the halves to reveal the battery compartment inside.

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Opening the key fob is a crucial step in the process of replacing the battery. Take your time and proceed with caution to avoid any mishaps.

Step 3: Remove the old battery

Before proceeding, ensure you have identified the battery type needed for your Toyota Camry key fob. Here’s how you can effortlessly remove the old battery:

  • Locate the battery compartment within the key fob.
  • Use a small tool like a flat-head screwdriver to carefully pry out the old battery.
  • Take note of the battery orientation before removing it to ease the installation of the new one.

Remember to proceed with caution to avoid damaging the key fob casing during this process.

Step 4: Replace the battery

Now it’s time to replace the battery in your Toyota Camry key fob. Follow these steps carefully:

  • Take out the fresh battery from its packaging.
  • Insert the new battery into the key fob, ensuring the correct orientation.
  • Gently push the battery into place and make sure it sits securely.

Important: Be sure the battery is secure before reassembling the key fob.

Step 5: Reassemble the key fob

When reassembling your Toyota Camry key fob after changing the battery, you’ll need to follow a few simple steps to put everything back together securely.

  • Align and gently press the key fob halves back together.
  • Make sure the buttons fit correctly into their respective slots.
  • Apply firm pressure to snap the key fob shut.

Remember, proper alignment and secure closure are essential to prevent any damage or malfunction.


That’s it! You’ve successfully learned how to change the battery in your Toyota Camry key fob. Remember to follow the steps for reassembling the key fob carefully to ensure everything aligns correctly. Proper alignment and a secure closure are key to avoiding any issues with your key fob in the future. Now you can enjoy using your key fob with a fresh battery and peace of mind knowing you did it all yourself. Great job!

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Frequently Asked Questions

How do I reassemble a Toyota Camry key fob after replacing the battery?

After replacing the battery in your Toyota Camry key fob, align the halves, ensure correct button placement, and firmly press to snap the key fob shut securely.

Why is proper alignment and firm closure important when reassembling a key fob?

Proper alignment and firm closure are crucial to prevent damage or malfunction of the Toyota Camry key fob. It ensures the components fit together correctly, maintaining functionality and security.

What should I do if my Toyota Camry key fob doesn’t snap shut after replacing the battery?

If your key fob doesn’t snap shut easily, double-check the alignment of the halves and the button placement. Apply enough pressure to securely close the fob without forcing it.

Battery industry professional with 5+ years of experience. Bachelor of Science in Electrical Engineering from Georgia Tech. Specializes in power systems and renewable energy.

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