2015 toyota corolla key fob battery replacement

This automotive maintenance tutorial was specifically written to assist owners of the eleventh generation (2014, 2015, 2016, 2017 and 2018) Toyota Corolla in changing the battery in the combination ignition key and key fob remote control for the keyless entry system.

Owners of other Toyota, Lexus or Scion vehicles such as the Yaris, Matrix, Prius, Camry, RAV4, Sienna, Tacoma, Tundra, FJ Cruiser, Venza, Highlander, Avalon, Sequoia, Land Cruiser, IS 250, ES 350, GS 350, tC, xB, xD, iQ and FR-S may also find these DIY instructions to be helpful.

A replacement coin cell (A.K.A. "button" or "watch") battery is part number CR2016 which is available from various manufacturers such as Panasonic, Duracell, Energizer, GE, Maxell, Sony and ACDelco.

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

Gently snap together the rear cover of the key fob case with the front of the fob.

Make sure that the two halves of the key fob are flush together at every edge.

To test the new key fob battery, stand near your Corolla 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 2014-2018 Toyota Corolla DIY Repair & Maintenance Guides.
 

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What type of battery does a 2015 Toyota Corolla key fob take?

Most Toyota models use a CR2032 battery, which you can find in stores and online. These batteries are pretty affordable as they typically cost less than $5. Place your Toyota key fob battery replacement inside of your case and seal it back up.

What battery do I need for my key fob Toyota Corolla?

Key Fob Battery Replacement Compatible with Toyota Corolla (2014-2021 Toyota Corolla Smart Key Battery CR2032)

Does a key fob need to be reprogrammed after changing the battery?

Typically, you do not need to reprogram the key fob after changing the battery. However, if you've replaced not just the batteries but also some of the internal wiring and electronics, you may need to reprogram it by pairing it with your vehicle once again.