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Chevrolet Sonic Key Fob Battery Replacement Guide
How to change the battery in the key fob remote control of a 1st generation 2012-2014 GM Chevy Sonic with pictures.

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2013 Sonic Key Fob
Back Side of Key Fob
Flip Out Ignition Key
This automotive maintenance tutorial was specifically written to assist owners of the first generation (2012, 2013, 2014, 2015 & 2016) Chevy Sonic in replacing the key fob battery.

Owners of other General Motors vehicles with similar keyless entry system remote controls such as the Spark, Cruze, Malibu, Impala, Traverse, Tahoe, GMC Terrain, Acadia, Yukon, Buick Verano, Regal, LaCrosse, Encore, Enclave and Holden Barina may also find these DIY instructions to be helpful.

A replacement "coin" cell (A.K.A. "button" or "watch") battery is part number CR2032. It is available from manufacturers such as Panasonic, GE, Maxell, Sony, Energizer and Duracell.

No tools are required to change the battery.

You may need a plastic pry bar tool or something similar like a screwdriver, coin or butter knife to pry off the battery cover.

Push Off Rear Battery Cover
Battery Cover Removed
Remove Old Battery
The first step is to press the silver button at the top corner of the key fob to eject the flip out or "switchblade" style metal ignition key.

Then insert your thumb in to the void on the side of the fob where the ignition key used to reside and gently pop off the rear battery cover.

Set the cover aside in a safe place.

Turn the fob over and gently tap out the old battery from the holder. If the battery won't fall out, gently pry it out with your finger tip or a small flathead screwdriver.

Try to avoid damaging the metal electrical contacts or the green circuit board beneath the battery socket.

Panasonic CR 2032 3V
Insert New CR2032 Battery
New Battery Installed
Slide a new CR2032 3 volt battery in to the socket with the "+" positive side facing up towards you.
Push On Battery Cover
Rear Cover Replaced
Test New Key Fob Battery
Line up the battery cover on the rear of the fob and gently snap it back in place.

Test the new battery by standing near your Sonic and pressing the "Lock" or "Unlock" buttons. If the battery is working properly, the parking lights should flash.

For more, check out my other Chevy Sonic Repair & Maintenance Guides.

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