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Nissan Altima Key Fob Battery Replacement Guide
How to replace the coin cell battery in the smart key fob remote control of a 4th generation 2007 to 2012 Nissan Altima.

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Altima Intelligent Key Fob
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Key Release Button
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Remove Physical Key

This automotive "how-to" guide was specifically written to assist owners of the 4th generation 2007 to 2012 Nissan Altima in replacing coin cell battery in the smart or "intelligent" key fob remote control for the keyless entry system.

Owners of other Nissan or Infiniti vehicles such as the Versa, Maxima, Juke, Rogue, Murano, Xterra, Pathfinder, Sentra, Cube, Armada, Quest, Frontier, Titan, G25, G37, M35 and M37 may also find this guide to be helpful.

The battery inside the key fob is a Panasonic CR2032 3V coin, "watch" or "button" cell battery. I'd recommend buying a 5 pack of new CR 2032 batteries on eBay for just $0.99 with free shipping. Many common household devices such as guard gate clickers and toll road transponders use the CR 2032 cell.

The only tool needed to replace the coin cell battery in a Nissan Altima smart key fob is a small flathead screwdriver.

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Side of Key Fob
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Flathead Screwdriver
The first step is to slide the switch on the back of the fob and release the physical car key that is stored inside. Then locate the small notch located on the left side of the key fob and insert the small flathead screwdriver.
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Fob Pried Open
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Pry Out Button Cell Battery
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Panasonic CR2032 3V
Carefully pry apart the two halves of the key fob with the flathead screwdriver while holding the opposite side of the remote. If you have trouble getting the fob halves to separate, try turning the flathead screwdriver while moving it up or down.

Once the two halves are apart, you can pry out the old Panasonic CR2032 3V battery with the flathead screwdriver. Don't insert the screwdriver near the metal battery contacts so as to avoid damaging them.



 

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Old Battery Removed
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Insert New Battery "-" Up
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Snap Together Two Halves
Pop in a new CR 2032 3V battery with the negative "-" side facing up towards you. Then line up the two halves of the smart key fob and gently snap them together. Check that the two halves rest flush against each other all the way around the fob.
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Key Fob Assembled
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Re-Insert Physical Key
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To finish the job, re-insert the physical car key and then go test the smart key fob's buttons next to your Altima.
 
For more of my maintenance instructions, click on the following links: 2007-2012 Nissan Altima 2.5 S Maintenance Guides, and 2002-2006 Nissan Altima 2.5 S Maintenance Guides.
 
If you found this guide to be helpful, please consider making a small donation by clicking on the PayPal.com "Donate" button located to the right of this paragraph. Thank you!
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