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Toyota Tacoma Key Fob Battery Replacement Guide
How to change the battery in the key fob remote control for a 2nd generation 2005 to 2015 Toyota Tacoma truck.

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2013 Tacoma Key & Fob
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Back of Fob Remote Control
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Notch - Bottom Right

This automotive maintenance DIY tutorial was specifically written to assist owners of the second generation (2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 or 2015) Toyota Tacoma pickup truck in changing the battery in the key fob remote control for the keyless entry system.

Owners of other Toyota, Lexus or Scion vehicles such as the Yaris, Matrix, Prius, Camry, Corolla, Sienna, RAV4, Tundra, FJ Cruiser, Venza, Highlander, Avalon, Sequoia, Hilux, Land Cruiser, IS 250, ES 350, GS 350, tC, xB, xD, iQ and FR-S may also find these DIY instructions to be helpful.

A replacement coin cell (A.K.A. "button" or "watch") battery is part number CR2032 which is available from various manufacturers such as Panasonic, Sony, GE, Duracell, Maxell and Energizer.

The only tool needed to access and replace the battery is a small flathead screwdriver. You may also be able to use a coin, butter knife or a nail file.

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Pry Open Key Fob
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Key Fob Opened
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Remove Remote Unit
The first step is to separate the ignition key and metal key ring from the fob remote control unit.

Locate the small notch on the bottom right corner of the fob near the red "Panic" button.

Insert the screwdriver, butter knife, Quarter or nail file in to the notch and gently pry apart the two halves of the fob.

Pull the rubber buttons piece and the remote control unit out of the fob's rear cover.

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Green Circuit Board
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Gently Push Out Old Battery
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Old Battery Removed
Carefully push the old CR2032 battery out of the screwdriver or slide it out with your finger.

Try to avoid scratching or damaging the green circuit board.



 

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Panasonic CR 2032 3V
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Push In New CR2032
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New Battery Installed
Slide a new # CR2032 3 volt coin cell battery in to the socket with the "+" positive side facing up towards you and the "-" negative side facing down.
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Re-Insert Remote Unit
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Line Up Rear Cover
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Line Up Two Halves
Replace the remote control unit in to the top half of the fob with the "Unlock", "Lock" and "Panic" buttons orientated in the correct position.

Line up the two halves of the key fob.

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Snap Together Key Fob
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Key Fob Re-Assembled
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Test New Key Fob Battery
Gently push together the two halves of the key fob until they snap back in to place.

Make sure that the front and back cover of the key fob are flush together with no part of the rubber buttons piece visible at the edges.

To test the new key fob battery, stand near your Tacoma and press the "Unlock" or "Lock" buttons.

If the new battery is working properly, you should see the parking lights flash and hear the door locks opening or closing.

For more, check out my other 2005-2015 Toyota Tacoma DIY Repair & Maintenance Guides.
 

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