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Toyota Camry Key Fob Battery Replacement Guide
How to replace the battery in the combination car key and keyless entry remote control for a 2007-2011 Toyota Camry.

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Toyota Camry Key Fob
Screwdriver In Notch
Fob Notch - Top Corner

This automotive maintenance "how-to" guide was specifically written to assist owners of the XV40 generation 2007 to 2011 Toyota Camry sedan in replacing a weak or worn out coin cell battery in the key fob remote control.

Owners of other Toyota, Lexus or Scion vehicles such as the Corolla, Matrix, Yaris, Avalon, Venza, RAV4, FJ Cruiser, Highlander, 4Runner, Sequoia, Land Cruiser, Tacoma, Sienna, IS 250, IS 350, ES 350, GS 350, LS 460, tC, xB, xD, iQ and the Toyota Aurion in Australia may also find guide to be helpful.

A replacement coin (A.K.A. "button" or "watch") cell battery is part # CR 2016 from a variety of manufacturers such as Panasonic, GE, Energizer, Duracell and Sony.

The only tool needed to replace the battery in the key fob remote control is a small flathead screwdriver. You could also use a coin, butter knife or any other similar item.

Key Fob Case Opened
Rear Cover Removed
Pry Out Remote Control
The first step is to locate the small notch at the top corner of the key fob. Use the small flathead screwdriver to gently pry open the rear cover of the fob.
Remote Control Unit
"Use Coin To Open"
Pry Apart Remote Control
With the key fob back cover removed, you can pry out the remote control unit.

Use a small coin such as a penny or dime to pry the translucent remote control half from the black plastic half.

Remote Case Opened
Drop Out Circuit Board
Pry Out Old CR2016
Drop or pry out the small remote control circuit board and battery tray from inside the black plastic half.


"+" Side Up
Insert New CR2016
New Battery Inserted
Pry out the old # CR 2016 3V battery and push in a new one with the "+" side facing up towards you.
Re-Insert Remote Unit
Pop On Clear Cover
Snap Pieces Together
Re-insert the remote control unit with the circuit board and small white buttons facing upwards into the black plastic half of the remote control case. Press the translucent piece against the black plastic case until they snap together.
Press Button - Test Battery
Insert Remote Into Key
Push one of the buttons on the remote control unit to verify that the new battery is working properly.

Insert the remote control unit back into the car key case with the buttons facing down.

Snap Back Cover In Place
Halves Popped Together
Test New Key Fob Battery
Line up the back cover of the car key and gently snap it into place.

Test the new key fob battery by pushing the "Unlock" or "Lock" buttons next to your Toyota Camry.

For more, check out my Toyota Camry Repair & Maintenance Guides page.

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