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Ford Edge Key Fob Battery Replacement Guide
How to change a weak or dead battery in the smart key fob remote for a 2nd generation 2015 to 2019 Ford Edge.

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2017 Edge Smart Key Fob
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Push In Release Button
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Slide Out Metal Key
This automotive maintenance tutorial was specifically written to assist owners of the second generation 2015, 2016, 2017, 2018 and probably also the face-lifted 2019, 2020, 2021 and 2022 model years of the Ford Edge SUV in changing a weak or dead battery in the smart or "intelligent access" key fob remote control for the keyless entry and push button start systems.

Owners of other Ford and Lincoln vehicles such as the Escape, Expedition, EcoSport, Flex, Explorer, Fiesta, Focus, Fusion, Mustang, Taurus, Ranger, Transit Connect, F-150, Endura, C-Max, Kuga, Mondeo, MKZ, Navigator, Aviator, Nautilus and Continental may also find these DIY instructions to be helpful.

The compatible replacement coin cell battery (also known as a "watch" or "button" battery) is part number CR2450.

The tools needed to access, remove and replace the battery is a small plastic pry bar tool and a small flathead screwdriver.

The first step is to push in the small black plastic rectangular shaped button at the bottom right of the fob to release the backup / emergency metal ignition key.



 

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Ignition Key Removed
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Key Slot - Edge of Fob
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Insert Pry Bar Tool
Pull the metal ignition key out of its slot and set it aside in a safe place.

Insert the blade of your plastic pry bar tool or a flathead screwdriver into the opening where the metal ignition key used to reside.

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Pop Off Battery Cover
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Rear Cover Removed
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Gently Pry Out Battery
Gently pry off the plastic battery access cover on the rear of the fob housing.

Set the back cover aside in a safe place.

To remove the old battery from its socket, either turn over the fob and tap it on the table or pry it out with a small flathead screwdriver.

Try to avoid scratching the green circuit board or bending and damaging the metal electrical contacts.

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Lift Out of Socket
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Panasonic CR2450 3V
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Empty Battery Holder
Pull the old battery out of the socket.

The original OEM battery in the fob for this 2017 Edge was a Panasonic CR2450 3 volt coin cell.



 

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Lower In New Battery
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Secure Battery In Socket
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Line Up Back Cover
Line up the new battery with the "-" negative side facing down into the socket and the "+" positive side facing up towards you.

Push the new battery into the socket.

Make sure it is fully seated in the holder.

Line up the back cover with the fob.

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Re-Insert Tab Front Edge
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Pop In Retaining Clips
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Back Cover Secured
First, re-insert the tab on the front edge of the cover into the slot at the front of the fob.

Then snap the lower edge of the cover into place to secure the retaining clips.

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Slide In Backup Key
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Ignition Key Secured
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Test New Key Fob Battery
Slide the metal ignition key back into its slot. The key should "click" securely into place.

To test the new fob battery, stand near your SUV and press the "Unlock" or "Lock" buttons.

If the new battery is working properly, you should see the parking lights flash and also hear the door locks opening and closing.

Be sure to record the battery change in your vehicle's service records.

Please check out all of my 2015-2019 Ford Edge DIY Repair & Maintenance Guides.
 

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