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Nissan Armada Key Fob Battery Replacement Guide
How to change the coin battery in the key fob remote control of a first generation 2004 to 2015 Nissan Armada SUV.

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2012 Armada Key Fob
Pry Apart Two Halves
Two Halves Separated
This automotive "how-to" guide was specifically written to assist owners of the 1st generation (2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 & 2015) Nissan Armada in changing the key fob battery.

Owners of other Nissan or Infiniti vehicles such as the Versa, Cube, Sentra, Altima, LEAF, Maxima, 370Z, Juke, Rogue, Murano, Xterra, Pathfinder, Quest, Frontier, Titan, QX56, Q50, G37, EX37, QX60, FX37, FX50 and QX80 may also find these DIY instructions to be helpful.

A replacement coin (A.K.A. "button" or "watch") cell battery is part number CR2025 from manufacturers such as Panasonic, GE, Sony, Maxell, Energizer, and Philips.

The only tool needed to replace the battery is a flathead screwdriver. You can also use a key, coin or butter knife.

Pry Out Old Battery
Old Battery Removed
Panasonic CR 2025 3V
The first step is to locate the notch at the bottom of the fob near the red panic button and along the key ring loop.

Insert the blade of the flathead screwdriver or similar type tool in to the notch and gently pry apart the two halves of the key fob.

Pull out the old coin cell battery from the socket in the back cover of the fob with your finger nail or the flathead screwdriver.

"+" Positive Side Down
Push In New # CR2025
Line Up Two Halves


Insert a new CR2025 3 volt battery in to the socket with the "+" positive side facing down.

Line up the back cover of the key fob with the front half.

Snap Key Fob Together
Flush Together All Around
Test New Key Fob Battery
Gently snap together the two halves.

Make sure that the two halves of the key fob are flush together all the way around.

To test the new key fob battery, stand near your Armada and press the "Unlock" and "Lock" buttons. If the new battery is working properly, you will see the parking lights flash.

For more, check out my other Nissan Armada Repair & Maintenance Guides.

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