Honda Odyssey
Key Fob Battery Replacement Guide
How to change a dead battery in the key
fob remote control for a 3rd generation 2005 to 2010 Honda Odyssey.
2008 Odyssey Key Fob |
Back Side of Key Fob |
Notch - Top Edge |
This
automotive maintenance tutorial was specifically written to assist
owners of the third generation (2005, 2006, 2007, 2008, 2009 & 2010)
Honda Odyssey minivan in changing a dead battery in the key fob
remote control for the keyless entry system. Owners of other Honda or Acura vehicles such as the Accord, Civic, Crosstour, CR-V, CR-Z, HR-V, Fit, Element, Insight, Pilot, Ridgeline, Clarity, Crosstour, Elysion, ILX, TSX, TLX, TL, RLX, RDX, NSX and MDX may also find these DIY instructions to be helpful. The compatible replacement coin cell (A.K.A. "button" or "watch") type battery is part number CR2025 which is available from various manufacturers such as Panasonic, Sony, Energizer, Duracell and Maxell. The only tool needed to access and replace the battery is a small plastic pry bar tool or a flathead screwdriver. |
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Insert Pry Bar Tool |
Pry Off Back Cover |
Lift Out Old Battery |
Separate the fob
unit from the key ring and the ignition key. To prevent from scratching the plastic surfaces, I recommend either covering the tip of your screwdriver with a thin micro fiber cloth or instead use a plastic pry bar tool. Insert the blade of the tool into the notch or slot located at the bottom edge of the fob housing. Gently pry apart the two halves of the key fob. Lift the rear cover off the key fob and set it aside in a safe place. Gently pull out the old battery with your finger nail or pry it out with a small flathead screwdriver. Try to avoid bending the metal electrical contacts or scratching the green circuit board. |
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Old Battery Removed |
Panasonic CR 2025 3V |
Empty Battery Socket |
The OEM battery was
a Panasonic CR2025 3 volt coin cell. You'll notice that there is a "-" negative symbol printed on the green circuit board. |
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"+" Positive Symbol |
Push In New Battery |
Line Up Rear Cover |
There is also a "+"
positive symbol on the back cover of the fob. Push a new number CR2025 battery straight into the socket with the "-" negative side facing down and the "+" positive side facing up towards you. Line up the rear cover with the battery socket. |
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Snap Together Two Halves |
Key Fob Re-Assembled |
Test New Key Fob Battery |
Gently pop together
the two halves of the key fob. Make sure that the two halves of the fob are flush together at every edge. Re-attach the key ring and the ignition key. To test the new battery, stand near your minivan and press the "Unlock" or "Lock" buttons on the fob. If the new battery is working properly, you should see the parking lights flash and hear the door locks opening or closing. Be sure to record the battery change in your vehicle's service records. For more, check out all of my
2005-2010 Honda Odyssey DIY Repair & Maintenance Guides. |
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