Mazda CX-5
Smart Key Fob Battery Replacement Guide
How to change the battery in the
intelligent key fob remote control of a 1st generation Mazda CX-5 SUV with
pictures.
2013 Mazda CX-5 Key Fob |
Back Of Smart Key Fob |
Metal Ignition Key Release |
This
automotive maintenance tutorial was specifically written to assist
owners of the first generation (2012, 2013, 2014, 2015 & the
refreshed 2016 model year) Mazda CX-5 SUV in changing the battery in
the smart or "intelligent" key fob for the keyless entry and push
button engine start systems. Owners of other Mazda vehicles such as the Mazda2, Mazda3, Mazda5, Mazda6, CX-7, CX-9, and the MX-5 Miata may also find these DIY instructions to be helpful. A replacement coin cell (A.K.A. "button" or "watch") battery is part number CR2025. The battery is available from various manufacturers such as Panasonic, GE, Sony, Maxell, Energizer and Duracell. The only tool needed to replace the battery is a small flathead screwdriver used to pry apart the key fob. |
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Slide Release Button |
Pry Apart Two Halves |
Key Fob Separated |
The
first two steps are to remove the key fob from your key ring and any other
keys. Then turn over the key fob and located the small sliding tab. Slide the grey button towards the other side of the fob to release the emergency metal ignition key. Remove the metal ignition key and set it aside in a safe place. Insert the blade of your small flathead screwdriver in to the void (A.K.A. "slot" or crevice") where the metal key used to reside and gently pry apart the two halves of the fob. |
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Remove Remote Control Unit |
Pry Apart Battery Holder |
Re-Insert Screwdriver |
Separate the rear cover and front cover of the key fob. Pull out the green circuit board remote control unit from the back half of the fob. Gently pry apart the battery holder tray from the rear cover of the fob. |
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Pry Off Rear Fob Cover |
Back Cover & Battery Tray |
Round Battery Cover |
You may
need to re-insert your screwdriver in several locations to finally pry it
apart. Do not use excessive force! Once the rectangular battery holder tray has been separated from the rear cover of the fob, turn it over to reveal the battery cap. |
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Pry Off Battery Cover |
Battery Cap Removed |
Gently Pry Out Old Battery |
Gently
pry off the round battery cover and set the cap aside in a safe place. Carefully pry out the old battery with the small flathead screwdriver. Try to avoid damaging the metal electrical contacts. |
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Old Battery Removed |
Panasonic CR 2025 3V |
Insert New CR2025 Battery |
Insert a new # CR2025 3 volt coin cell battery in to the socket with the "-" negative side facing down and the "+" positive side facing up towards you. | ||
"+" Positive Side Up |
Push On Battery Cap |
Line Up Rear Cover |
Line up
the round battery cover and gently snap the cap back in to place. Line up the rear cover of the fob over the battery tray. |
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Snap On Battery Holder |
Rear Cover Flush With Tray |
Line Up Green Circuit Board |
Gently
snap together the battery holder tray and the back half of the fob. Place the green circuit board remote control unit over the battery tray with the metal electrical contacts on the bottom and the small grey plastic buttons facing up towards you. |
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Rubber Buttons & Front Cover |
Pop Together Two Halves |
Front & Back Flush At Edge |
Line up
the rubber buttons and the front cover of the fob over the green circuit
board. Gently snap together the two halves of the fob until they are flush at every edge. |
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Re-Insert Metal Ignition Key |
Key Fob Re-Assembled |
Test New Key Fob Battery |
Slide in the back
up metal ignition key until it clicks securely in to place. Test the new battery by standing near your CX-5 and pressing the "Unlock" or "Lock" buttons. If the new battery is working properly, you should see the parking lights flash and hear the door locks opening or closing. For more,
check out all of my
Mazda CX-5 DIY Repair & Maintenance Guides. |
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