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GMC Terrain Key Fob Battery Replacement Guide
How to change a dead battery in the key fob remote control of a 1st generation 2010 to 2016 GMC Terrain SUV.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989


Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

2016 Terrain Key Fob
Back Side of Key Fob
This automotive maintenance tutorial was specifically written to assist owners of the first generation (2010, 2011, 2012, 2013, 2014, 2015 & 2016) GMC Terrain in changing a dead battery in the key fob remote control for the keyless entry system.

Owners of other General Motors vehicles such as the Buick Verano, Regal, LaCrosse, Cascada, Encore, Enclave, Envision, GMC Canyon, Sierra 1500, Acadia, Yukon, Denali, Savana, Spark, Sonic, Cruze, Malibu, Impala, Volt, Camaro, Corvette, SS, Trax, Equinox, Traverse, Tahoe, Suburban, Colorado, Silverado and Express may also find these DIY instructions to be helpful.

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

No tools are needed to access and replace the key fob battery.

Chrome Silver Button
Release Metal Ignition Key
The first step is to press the chrome silver button on the top left corner of the key fob to release the metal ignition key.

Then place your thumb in to the crevice where the metal ignition key used to reside and pull off the battery access panel.

Pry Off Rear Cover
Back Cover Removed
Set the rear cover aside in a safe place.
Tap Out Old Battery
Panasonic CR032 3 Volt
Turn over the key fob and gently tap out the old battery from the socket.

If necessary, use a small flathead screwdriver to carefully pry out the old battery.

Try to avoid damaging the metal electrical contacts or the green circuit board with the screwdriver blade.


Insert New CR 2032
"+" Positive Side Up
Install a new CR2032 3 volt battery in to the holder with the "-" negative side facing down and the "+" side facing up towards you.
Line Up Back Cover
Snap Closed Rear Cover
Line up the rear cover over the battery.

Gently snap the rear cover back in to place.

Key Fob Re-Assembled
Test New Key Fob Battery
Double check that the back cover is securely in place and flush together with the fob at every edge.

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 hear the door locks opening or closing.

For more, check out my other 2010-2016 GMC Terrain 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!
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