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Jeep Grand Cherokee Key Fob Battery Replacement Guide
How to change the battery in the key fob remote control of a 4th generation "WK2" 2011-2016 Jeep Grand Cherokee SUV.

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2012 Grand Cherokee Key Fob
Back Side of Key Fob
Slide Black Plastic Switch
This automotive maintenance tutorial was specifically written to assist owners of the 4th generation "WK2" (2011, 2012, 2013, 2014, 2015 & 2016) Jeep Grand Cherokee in changing the battery in the key fob remote control.

Owners of other Chrysler, Jeep, Dodge and RAM vehicles with similar key fobs such as the Town & Country, 300, 200, Patriot, Wrangler, Compass, Cherokee, Durango, Avenger, Challenger, Charger, Dart, RAM 1500 truck and C/V Tradesman may also find these DIY instructions to be helpful.

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

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

Slide Out Metal Ignition Key
Insert Flathead Screwdriver
Pry Apart Two Halves
The first step is to slide the black plastic switch on the front of the key fob near the bottom to release the metal ignition key.

Pull the metal ignition key straight of the fob and set it aside in a safe place.

Insert the blade of the small flathead screwdriver in to the slot where the metal ignition key used to reside and gently pry apart the two halves of the fob.

Separate Fob Halves
Key Fob Opened
Pull Out Old Coin Cell
Pull apart the two halves of the key fob to reveal the green plastic remote control circuit board and the battery holder inside the rear cover.
Old Battery Removed
Panasonic CR 2032 3V
CR2032 "+" Side Down


Pry the old battery out of the rear cover with your fingernail or use the small flathead screwdriver.

The rear cover of the key fob is marked with the words "CR2032 + Side down".

Insert New Battery
Line Up Key Fob Halves
Snap Together Key Fob
Insert the new CR2032 3 volt battery with the positive "+" side facing down in to the rear cover of the key fob.

Line up the two halves of the fob and gently snap them back together.

Make sure that the two halves of the fob are flush together all the way around at every edge.

Re-Insert Ignition Key
Key Fob Re-Assembled
Test New Key Fob Battery
Slide the metal ignition key back in to the slot on the bottom of the fob until it clicks securely in to place.

Test the new key fob battery by standing near your Grand Cherokee while pressing the "Lock" and "Unlock" buttons.

If the new battery is working properly, you should see the parking lights flash, hear a short horn honk, and also hear the power door locks opening or closing.

For more, check out my other Jeep Grand Cherokee DIY Repair & Maintenance Guides.

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