Author Topic: How to Change Battery in Key Fob  (Read 5857 times)

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Offline carl.allen96

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How to Change Battery in Key Fob
« on: February 12, 2016, 07:34:18 PM »
Hello all,

I thought I would post this just to clarify how you change the battery in the Mazda key fob, I have seen similar posts but none with a picture guide.

The correct battery you will need to perform this replacement is a: CR1620 battery.


Step 1: Flick out the key from the remote.

Step 2: Turn the fob on its side where the flip out key sits and you will see a small tab inside.



Step 3: Use a small flat head screwdriver and push down on the tab whilst pushing towards the top of the key.



Step 4: The top part of the remote will now release like so.



Step 5: On the opposite side to where you pushed down the tab, slide the screwdriver into the small gap and pull away the bottom half of the remote.





Step 6: The battery will now be revealed! Simply release the battery from its holding position and insert the new one.



Step 7: Now just re-assemble the remote by clipping the bottom half and top half of the remote together, followed by re-inserting the key part.


Hope this is helpful! :)
Carl.

Offline andrewfiftyfour@hotmail.c

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Re: How to Change Battery in Key Fob
« Reply #1 on: October 17, 2016, 08:28:43 PM »
Thats really helpful.  Picking my mazda up sunday and one of the remotes needs a new battery.  Thank you

Offline keith h

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Re: How to Change Battery in Key Fob
« Reply #2 on: October 20, 2016, 05:30:30 PM »
Hello Carl. I have just changed the batteries in the key fobs as well. Your pics are very good and informative. Can I mention one other point. Its worth removing the PCB and cleaning the rubber membrane and also the contact points on the PCB. Regards to all, keith h

Offline carl.allen96

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Re: How to Change Battery in Key Fob
« Reply #3 on: November 08, 2016, 03:43:52 PM »
Hello Carl. I have just changed the batteries in the key fobs as well. Your pics are very good and informative. Can I mention one other point. Its worth removing the PCB and cleaning the rubber membrane and also the contact points on the PCB. Regards to all, keith h

Thanks for that, didn't think of that at the time!

Offline bobmax

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Re: How to Change Battery in Key Fob
« Reply #4 on: March 22, 2017, 01:31:56 AM »
Nice one carl...cheers  8)
Familiarity breeds contempt - and children

Offline misar

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Re: How to Change Battery in Key Fob
« Reply #5 on: March 22, 2017, 09:20:46 PM »
Probably worth pointing out somewhere in this thread that there is more than one type of Mazda 3 key fob. No idea how many but mine is totally different from the pictures with a different battery.

Offline StevenRB45

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Re: How to Change Battery in Key Fob
« Reply #6 on: March 22, 2017, 10:00:04 PM »
Yep this thread covers the standard mk2 none keyless entry remote locking key.

Mazda 3 Forums UK

Re: How to Change Battery in Key Fob
« Reply #6 on: March 22, 2017, 10:00:04 PM »