How to Replace the Battery in a Toyota Prius Key Fob (2001 – 2003)

Introduction

Replacing the battery in your Toyota Prius key fob is a simple task that you can do at home. You only need a flathead screwdriver and a CR2016 battery. In this guide, I will walk you through each step of the process.

Sale
Energizer 2016 Batteries, 3 Volt Battery Lithium Coin, 2 Count
  • Used in heart rate monitors, keyless entry, glucose monitors, toys & games
  • Important: Coin Lithium batteries are not interchangeable; Both the diameter and thickness can vary based on the cell designation; While some device battery compartments may be sized in a way that different battery types can fit in the compartment, the capacities will vary by size
  • Reliable, dependable power

Tools and Materials Needed

  • Flathead screwdriver
  • CR2016 battery

You can purchase the CR2016 battery online. Here is a link to buy the battery on Amazon: Buy CR2016 Battery.

Step-by-Step Instructions

Step 1: Locate the Indentation

First, look at the top of your key fob. You will see a small indentation in the plastic. This is where you will insert your flathead screwdriver.

Step 2: Insert and Twist the Screwdriver

Insert the flathead screwdriver into the indentation. Twist the screwdriver as if you are turning a key. The key fob will crack open easily.

Step 3: Remove the Old Battery

Once the key fob is open, you will see the battery. Push on the bottom of the battery with your thumbnail or a small tool. The battery will pop out easily.

Step 4: Insert the New Battery

Take your new CR2016 battery and make sure the positive side is facing up. Slide the battery into the slot and ensure it clicks into place securely.

Step 5: Reassemble the Key Fob

Align the two halves of the key fob and press them together until they click. Your key fob is now ready to use.

Sale
Energizer 2016 Batteries, 3 Volt Battery Lithium Coin, 2 Count
  • Used in heart rate monitors, keyless entry, glucose monitors, toys & games
  • Important: Coin Lithium batteries are not interchangeable; Both the diameter and thickness can vary based on the cell designation; While some device battery compartments may be sized in a way that different battery types can fit in the compartment, the capacities will vary by size
  • Reliable, dependable power

Tips and Warnings

  • Ensure the positive side of the battery faces up.
  • Use a small flathead screwdriver for better control.
  • Be gentle to avoid damaging the key fob.

Conclusion

Replacing the battery in your Toyota Prius key fob is quick and easy. With just a screwdriver and a CR2016 battery, you can do it yourself in minutes. If you found this guide helpful, feel free to leave a comment. For more tutorials, visit fobbattery.com.

FAQ

What type of battery does the Toyota Prius key fob use?

The Toyota Prius key fob from 2001 to 2003 uses a CR2016 battery.

Where can I buy a CR2016 battery?

You can purchase a CR2016 battery on Amazon.

Sale
Energizer 2016 Batteries, 3 Volt Battery Lithium Coin, 2 Count
  • Used in heart rate monitors, keyless entry, glucose monitors, toys & games
  • Important: Coin Lithium batteries are not interchangeable; Both the diameter and thickness can vary based on the cell designation; While some device battery compartments may be sized in a way that different battery types can fit in the compartment, the capacities will vary by size
  • Reliable, dependable power

Do I need any special tools to replace the battery?

No, you only need a regular flathead screwdriver.

How do I know which side is the positive side of the battery?

The positive side of the battery is usually marked with a plus sign (+).

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

Ensure the battery is inserted correctly with the positive side facing up. If it still doesn’t work, the key fob may have other issues.

Can I use a different type of battery?

No, you should use a CR2016 battery to ensure compatibility.

How often should I replace the key fob battery?

Replace the battery when you notice the key fob is not working as effectively. Typically, this is every 1-2 years.

Is there a risk of damaging the key fob?

If you follow the steps carefully and use the correct tools, the risk is minimal.

Can I take my key fob to a professional for battery replacement?

Yes, but replacing the battery yourself is simple and cost-effective.

Where can I find more tutorials?

You can find more key fob battery replacement tutorials on our YouTube channel or at fobbattery.com.

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