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Toyota RAV4 Key Fob Battery Replacement Guide
How to replace the coin cell battery in the key fob remote control of a 3rd generation 2006-2012 Toyota RAV4 SUV.

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2012 RAV4 Key Fob
Notch At Bottom Left
Insert Flathead Screwdriver
This automotive "how-to" guide was specifically written to assist owners of the third generation (2006, 2007, 2008, 2009, 2010, 2011 & 2012) Toyota RAV4 in replacing the coin cell battery in the combination car key and fob remote control unit.

If your RAV4 has a separate key and rectangular fob, check out my other Toyota Key Fob Battery Replacement Guide.

If your RAV4 has the newer "smart key fob" please visit my Toyota Smart Key Fob Battery Replacement Guide.

Owners of other Toyota, Lexus and Scion vehicles such as the Prius, Camry, Corolla, Yaris, Matrix, Sienna, Avalon, Highlander, FJ Cruiser, Venza, 4Runner, Sequoia, Tacoma, Tundra, tC, iQ, xD, xB, FR-S, IS250, ES350, SC430 and GS350 may also find these instructions to be helpful.

A replacement coin (AKA "button" or "watch") battery is part # CR2016 from manufacturers such as GE, Sony and Energizer.

The only tool needed to access the key fob battery is a small flathead screwdriver. You could also use a coin or butter knife.

Pry Off Back Cover
Pull Out Remote Control
Press Clear Release Tabs
The first step is to locate the small notch at the bottom left of the fob on the key ring near the "Unlock" button.

Insert the blade of the small flathead screwdriver in to the notch and gently pry off the black plastic back cover.

To avoid damaging the plastic, cover the tip of the screwdriver with a thin cloth.

Turn over the front of the key fob and remove the five sided remote control unit.

Press the clear tabs on the edge of the remote control unit with the flathead screwdriver to remove the black plastic rear cover.

Black Plastic Cover Off
Pry Out Old Coin Battery
Panasonic CR2016 3V


Once the black plastic rear cover is removed, turn over the clear plastic part of the remote control unit to reveal the coin cell battery.

Carefully pry out the old CR2016 battery with your fingernail or the small flathead screwdriver.

Try to avoid damaging the metal electrical contacts or the green circuit board.

Push In New Battery + Up
Snap Remote Unit Together
Insert Remote In To Key
Push a new # CR2016 battery in to the socket on the remote control unit with the positive "+" side facing up towards you.

I'd recommend testing the remote control unit at this point to make sure that the new battery works properly before re-assembling the fob.

Snap the black plastic cover on to the back of the remote control unit.

Insert the remote unit in to the rear of the key fob with the buttons facing down.

Line Up Back Cover
Snap Back Cover In Place
Test New Key Fob Battery
Line up the black plastic rear cover of the fob and gently snap the two halves together.

Make sure that the fob is flush all the way around.

To test the new key fob battery, stand next to your RAV4 and press the "Lock" or "Unlock" buttons.

If the new battery is working properly, you should see the parking lights flash and/or hear beeping sounds.

For more, check out my other Toyota RAV4 Repair & Maintenance Guides.

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