Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to replace the key fob battery in a Mazda 6

Model: Mazda 6 GJ, MK 3 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Key

See other generations:
Video tutorial

To replace the battery of a Mazda 6 key fob, locate the release lever on the back of the key and activate it to extract the mechanical emergency key. Then locate the slot along the edge of the fob and insert a small flat screwdriver or a plastic lever.

Gently twist the tool to separate the two halves of the shell without damaging the clips.

Remove the internal battery cover, if present, then extract the button cell, paying attention to its polarity. Insert a new battery of the same type, generally CR2025 or CR2032 depending on the key version, respecting the mounting direction.

Close the fob by pressing the two halves together until they click, reinsert the mechanical key, and check the operation of the buttons.


Posted on 1 September 2026 by ScegliAuto


Related tutorials

How to replace the remote battery on the Mazda 6 MK3
How to replace the remote battery on the Mazda 6 MK3
Mazda 6 (2012-2024 / GJ, MK 3) In this brief guide, discover how to disassemble and replace the battery in the electronic key fob for the Mazda 6 third generation by following thes…
Replacement of the Mazda 6 key fob battery.
Replacement of the Mazda 6 key fob battery.
Mazda 6 (2012-2024 / GJ, MK 3) Below we will see the steps that will allow us to disassemble and replace the battery of the key remote of the Mazda 6. First of all, we take our rem…
Replacing the Remote Key Battery
Replacing the Remote Key Battery
Mazda 6 (2002-2008 / GG, MK 1) To keep the key functioning as a remote for opening the doors after the existing battery is depleted, simply replace it. To access the button battery…

How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

More videos