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Honda Pilot Key Fob Battery Replacement Guide
How to change the battery in the key fob remote control for a 2nd generation 2009-2015 Honda Pilot SUV with photos.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

2012 Honda Pilot Key Fob
Back Side of Key Fob
Small Phillips Head Screw
This automotive maintenance tutorial was specifically written to assist owners of the second generation (2009, 2010, 2011, 2012, 2013, 2014 & 2015) Honda Pilot SUV in replacing a dead battery in the combination key fob remote control and metal ignition key unit.

Owner's of other Honda or Acura vehicles such as the Odyssey, Insight, Ridgeline, CR-V, Fit, Civic, CR-Z, Crosstour, Accord, MDX, RDX, RLX, TL, TSX and ILX may also find these DIY instructions to be helpful.

A replacement coin cell (A.K.A. "button" or "watch") battery is part number CR1616 which is available from various manufacturers such as Panasonic, Sony, GE, Duracell, Energizer and Maxell.

The only tool needed to access and replace the battery is a small #0 Phillips head screwdriver.

Carefully Loosen Screw
# 0 Screw Removed
Pull Open Rear Cover
The small screw that holds the key fob together can be easily stripped and is secured with blue Loctite thread locker to prevent it from backing out.

So make sure you use a small #0 screwdriver such as from a jeweler's screwdriver set or a computer repair kit.

Carefully loosen the screw in the counterclockwise direction while applying downward pressure to prevent from having it strip.

Set the screw aside in a safe place.

Swing open the back cover of the fob at the edge closest to the metal ignition key.

Hook By Key Ring Hole
Back Cover Removed
Remove Remote Control Unit
The back cover of the key fob is held in place with a small plastic hook at the bottom edge which is near the key ring opening and the red "Panic" button.

Gently remove the plastic hook and set the back cover aside in a safe place.

Lift the remote control unit out of the front cover of the key fob.

Gently Pry Open Case
Remote Control Opened
Gently Pry Out Old Battery
Very gently pry back the retaining clip on the top edge of the remote control unit to separate the two halves.

Open the remote control unit to access the old battery.

Gently pry out the old battery from the socket with your finger nail or a small flathead screwdriver.

Try to avoid bending or damaging the metal electrical contacts.


Old Battery Removed
Panasonic CR 1616 3V
Install New Battery
Insert a new # CR1616 3 volt coin cell battery in to the holder with the "+" positive side facing down and the "-" negative side facing up towards you.
"+" Positive Side Down
New Battery Installed
Line Up Two Halves
Line up the back cover of the remote control unit with the front part and gently snap them back together.
Re-Insert Remote Control
Remote In Front of Fob
Re-Insert Plastic Hook
Lower the remote control unit in to the front cover of the key fob with the buttons lined up with their corresponding openings.

Re-insert the plastic hook at the bottom of the key fob cover back in to place.

Close Fob Rear Cover
Tighten Screw Clockwise
Test New Key Fob Battery
Gently snap together the back cover and front part of the key fob.

Re-insert the Phillips head screw and tighten it in the clockwise direction until it is snug.

Try to avoid over tightening the screw to prevent from stripping it or cracking the plastic key fob housing.

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

If the new battery is working properly, you should see the parking lights flash and hear the door locks open or close.

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

For more, please check out my other 2009-2015 Honda Pilot DIY Repair & Maintenance Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
(Note: I am not a registered charity. Donations are not tax deductible.)

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