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Mitsubishi Outlander Sport Key Fob Battery Replacement Guide
How to change a dead battery in the smart key fob remote control for a 3rd generation 2011 to 2017 Outlander Sport.

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2015 Outlander Sport Key Fob
Back Side of Key Fob
Ignition Key Release Switch
This automotive maintenance tutorial was specifically written to assist owners of the third generation (2011, 2012, 2013, 2014, 2015, 2016 and 2017) Mitsubishi Outlander Sport in changing a dead battery in the smart or "intelligent" key fob remote control for the keyless entry and push button start systems.

Owners of other Mitsubishi vehicles such as the Lancer, Outlander, Mirage, ASX, RVR, Galant, I-MIEV, Montero, Eclipse, 3000GT, Endeavor, Raider, Diamante, Attrage, Carisma, Colt, Grandis, Magna, Pajero and the Space Star may also find these DIY instructions to be helpful.

A compatible replacement coin cell (A.K.A. "button" or "watch") battery is part number CR2032.

The only tool needed to access and replace the battery is a small flathead screwdriver used to pry open the housing.

Slide Out Metal Ignition Key
Backup / Emergency Key
Small Notch Bottom Edge
The first step is to separate the key ring and your other keys from the fob.

Turn over the key fob and locate the switch.

Slide the switch to release the backup / emergency metal ignition key.

Set the metal ignition key aside in a safe place.

Locate the small notch on the bottom edge of the fob.

Pry Open Two Halves
Key Fob Separated
Pop Out Old Battery
To prevent from scratching the plastic surfaces, you may choose to cover the tip of your screwdriver with a thin micro fiber cloth.

Insert the blade of the screwdriver in to the notch and gently pry apart the two halves of the fob.

Set the rear cover of the fob aside in a safe place.

Either use your fingernail or the flathead screwdriver to gently pry the old CR2032 battery out of its socket.

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


Old Battery Removed
Panasonic CR 2032 3V
"-" Down, "+" Side Up
Push a new CR2032 3 volt battery in to the holder with the "+" positive side facing up and the "-" negative side facing down in to the socket.
Push In New Battery
New Battery Installed
Line Up Front & Back
Line up the two halves of the fob and gently snap them back together.
Snap Together Fob
Re-Insert Metal Ignition Key
Test New Fob Battery
Make sure that the two halves of the fob are flush together at every edge.

Slide the metal ignition key back in to the slot until it clicks securely in to place.

To test the new key 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 or closing.

For more, check out all of my 2011-2017 Mitsubishi Outlander DIY Repair & Maintenance Guides.

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