How to Replace the Battery in Your Toyota RAV4 Key Fob (2019-2021)

Introduction

Replacing the battery in your Toyota RAV4 key fob is a simple process you can do at home. In this guide, I will walk you through each step to ensure your key fob is functioning properly again.

The only items you need are a CR1620 battery and a small flathead screwdriver. If you don’t have a CR1620 battery, you can purchase it online. I will include a link for your convenience.

Sale
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack
  • LONG LASTING PERFORMANCE: Panasonic CR1620 3.V batteries are engineered to provide reliable, long-lasting power
  • CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e)
  • LONG STORAGE LIFE: Our CR1620 batteries maintain power up to 8 years when unused and properly stored

Step-by-Step Guide

Gather Your Tools

Before you start, make sure you have a CR1620 battery and a small flathead screwdriver. If you don’t have these items, you can buy them online. Links will be provided in the description.

Locate the Indentation

Flip your key fob to the back where the key ring is located. You will see a small indentation or slot along the seam of the plastic. This is where you’ll insert your screwdriver.

Open the Key Fob

Insert the flathead screwdriver into the indentation and twist it. You will hear a cracking sound, which is normal. This action will open the key fob. Set the back cover aside.

Remove the Plastic Piece

Inside, you’ll find a small piece of plastic that indicates the battery type. Use the same flathead screwdriver to push down and pry it back. This will expose the battery compartment.

Extract the Old Battery

You will need a precision screwdriver or a similar thin tool to remove the old battery. Insert it into the small hole at the bottom of the battery compartment and gently pry the battery out.

If you don’t have a precision screwdriver, you can use a paper clip, bobby pin, or a needle. Just make sure it is strong enough to pry the battery out without bending.

Insert the New Battery

Take your new CR1620 battery and place it into the compartment. Make sure the battery is seated properly and clicks into place.

Reassemble the Key Fob

Once the new battery is in place, reattach the plastic piece and the back cover. Make sure everything is securely closed.

Sale
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack
  • LONG LASTING PERFORMANCE: Panasonic CR1620 3.V batteries are engineered to provide reliable, long-lasting power
  • CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e)
  • LONG STORAGE LIFE: Our CR1620 batteries maintain power up to 8 years when unused and properly stored

Additional Tips and Tricks

Why Choose a CR1620 Battery?

The CR1620 battery is specifically designed to fit the Toyota RAV4 key fob. Using a different type may result in improper functioning.

Where to Buy the CR1620 Battery

You can easily find CR1620 batteries online. I recommend purchasing from a reputable seller to ensure you get a quality product. Links are provided in the description.

Alternative Tools

If you don’t have a precision screwdriver, you can use:

  • Paper clip
  • Bobby pin
  • Needle

Just ensure the tool is strong enough to pry the battery out without bending.

Common Issues and Solutions

Key Fob Not Working After Battery Replacement

If your key fob doesn’t work after replacing the battery, check the following:

  • Battery orientation
  • Proper seating
  • Secure closure

Difficulty Opening the Key Fob

If you find it hard to open the key fob, apply a bit more pressure with the screwdriver. The cracking sound is normal and indicates the key fob is opening as intended.

FAQs

Do I need a specific type of battery?

Yes, you need a CR1620 battery. Using a different type may cause the key fob to malfunction.

Where can I buy a CR1620 battery?

You can purchase CR1620 batteries online or at most electronics stores.

Sale
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack
  • LONG LASTING PERFORMANCE: Panasonic CR1620 3.V batteries are engineered to provide reliable, long-lasting power
  • CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e)
  • LONG STORAGE LIFE: Our CR1620 batteries maintain power up to 8 years when unused and properly stored

What if I don’t have a precision screwdriver?

You can use a paper clip, bobby pin, or needle as alternatives. Just make sure they are strong enough to pry the battery out.

Is the cracking sound normal?

Yes, the cracking sound indicates the key fob is opening as intended. You are not damaging the key fob.

What if my key fob doesn’t work after replacing the battery?

Check the battery orientation, ensure it is properly seated, and make sure the key fob is securely closed.

Conclusion

Replacing the battery in your Toyota RAV4 key fob is a simple task that can save you time and money. By following this guide, you can ensure your key fob remains functional. If you have any questions or need further assistance, feel free to leave a comment or visit our website for more tutorials.

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