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Jeep Wrangler Key Fob Battery Replacement Guide
How to replace the coin cell battery in the keyless entry remote control of a "JK" 2007 to 2012 Jeep Wrangler.

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Jeep Wrangler Key Fob
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Screwdriver In Notch
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Two Halves Separated

This automotive "how-to" guide was specifically written to assist owners of the "JK" generation 2007, 2008, 2009, 2010, 2011 & 2012 Jeep Wrangler in replacing the coin cell battery in the key fob remote control.

Owners of other Jeep, Dodge or Chrysler vehicles such as the Compass, Patriot, Liberty, Grand Cherokee, Avenger, Caliber, Challenger, Charger, Durango, Journey, Grand Caravan, 200, 300 and the Town & Country minivan may also find these DIY instructions to be helpful.

A replacement coin, button or "watch" battery for the combination car key / key fob remote control for the Jeep Wrangler is part number CR2032 from various manufacturers such as Panasonic, Energizer, Sony, Maxell and Duracell.

The only tool needed to replace the key fob battery is a small flathead screwdriver used to pry off the rear cover.

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Lift Up Rubber Buttons
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Remote Control Unit
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Lift Up Circuit Board
The first step is to locate the small notch at the corner of the key fob near the metal car key blade and opposite the black plastic key ring.

Insert the blade of the small flathead screwdriver into the notch and gently turn it to pry apart the two halves of the key fob.

Pull apart the two halves and set the metal car key piece aside.

Remove the rubber cover that contains the Lock, Unlock and Panic buttons to reveal the remote control unit.

Lift the remote control circuit board off the back cover of the key fob to reveal the coin cell battery.

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Pry Out Old Battery
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Old CR2032 Removed
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Panasonic CR 2032 3V



 

Use the small flathead screwdriver to gently pry out the old CR 2032 battery from the key fob's back cover.

Push in a new CR2032 3 volt battery into the rear cover with the "+" side facing down and the "-" polarity side facing up towards you.

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Insert New Battery
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"-" Side Up / "+" Down
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Replace Rubber Cover
Insert the remote control unit circuit board into the rear of the rubber cover.

Place the rubber cover containing the Lock, Unlock and Panic buttons back over the rear cover of the key fob.

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Align Two Halves Together
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Snap Halves Together
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Test New Key Fob Battery
Line up the front cover of the key fob over the rear cover and snap them together. Double check that the two halves are flush all around.

Test the new key fob battery by standing near your Jeep Wrangler and pushing the Lock or Unlock buttons. If the battery works and the key fob was re-assembled correctly, the headlights should flash.

For more, check out my other Jeep Wrangler Repair & Maintenance Guides.
 

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