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Dodge Avenger Key Fob Battery Replacement Guide
How to change the battery in the key fob remote control of a 2011, 2012, 2013 and 2014 Dodge Avenger with photos.

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2012 Avenger Key Fob
Notch Near Metal Ignition Key
Insert Flathead Screwdriver
This automotive maintenance tutorial was specifically written to assist owners of the updated (2011, 2012, 2013 and 2014) Dodge Avenger sedan in changing the battery in the key fob remote control for the keyless entry system.

Owners of other Chrysler Group vehicles with similar key fobs such as the Dart, Challenger, Durango, Charger, Grand Caravan, 200, 300, RAM C/V Tradesman, Jeep Patriot, Compass and Cherokee may also find these DIY instructions to be helpful.

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

The only tool needed to replace the battery is a small flathead screwdriver used to pry apart the two halves of the fob.

Two Halves Fob Separated
Remove Green Circuit Board
Pry Out Old Battery
The first step is to separate the fob from the key ring.

Then locate the small notch on the corner of the fob near the metal ignition key and by the trunk release button.

Insert the blade of the small flathead screwdriver in to the notch and gently pry apart the two halves.

The battery holder is located in the back cover of the key fob.

You may need to lift off the green circuit board remote control unit to access the battery.

Gently pry out the old battery with the small flathead screwdriver or use your finger nail. Try to avoid damaging the metal electrical contacts.

The OEM battery in the fob for this 2012 Avenger was a Panasonic CR2032 3 volt coin cell.

Old Battery Removed
Panasonic CR2032 3V
Insert New Battery "+" Down
Insert a new # CR2032 3 volt battery in to the socket with the "+" positive side facing down.


Back Cover - Battery Installed
Re-Insert Remote Control Unit
Line Up Back Cover
Lower the green circuit board remote control unit in to the top half of the key fob with the battery electrical contacts facing up towards you.
Snap On Rear Cover
Fob Halves Flush Together
Test New Key Fob Battery
Line up the rear cover and gently snap together the two halves of the key fob. Make sure that they are flush together all the way around.

Test the new key fob battery by standing near your Avenger and pressing the "Lock" and "Unlock" 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 Dodge Avenger Repair & Maintenance Guides.

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