Mazda 3 CX30 CX5 2020 Smart Key HOW TO Change key battery

Hello, this video shows you how to change the key battery on this Mazda 3 2020 key, The key is a smart key or also called a proximity key and is for a car with a push button start.
You'll need a good quality CR2032 key battery, click here to buy from Amazon amzn.to/2LF0HOB
This is a very easy job and if you follow the video you'll have no problems.
Find out more about our business at www.thecarkeyman.co.uk
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[@oldthrash83]

I just bought a 2021 Mazda cx-30, the next day I got a low battery warning on the dash. This video made changing it a snap! Thumbs up!

[@TheCarKeyMan]

Great stuff, really pleased it helped :)

[@csaunders5914]

Less than a month after I bought my 2024 mazda cx5 the indicator on the dash said my batteries were low. I watched the first you tube video I found. It said use a 2025 battery. Once I opened the remote I saw i needed a 2032! So I searched until I found this video. The instructions are clear and concise, and since I didn't open the batteries, I can take them back for an exchange. I'm so confident I probably won't need the video, but I'll keep it on hand just in case. Thank you!

[@TheCarKeyMan]

Thanks for the feedback, hope it helped :)

[@alyssaagail]

thank you so much for this! first time replacing a fob key battery and wasn't sure how to do it. such an easy tutorial thank you again 😊❤

[@TheCarKeyMan]

You’re very welcome, thanks for the feedback :)

[@maggieboyle7782]

Thanks, seeing this made it much easier to get this done. I just bought a used 2021 cx-30 and within a week saw the low battery in key fob message. I fought with it for 15 minutes until I found you.

[@TheCarKeyMan]

Great stuff Maggie, so pleased this helped yo :)

[@t.j.oconnor7547]

So strange. I have had my CX-9 for 2 years and it constantly tells me the battery is low. I have changed it multiple times

[@LoveMexicoLife]

Another ridiculous design courtesy of Mazda. Don't get me wrong I love my Mazda I've been buying them forever but why do you have to make changing the battery on the key fob so darn hard. Thank you so much for all your help in this video it was very helpful

[@TheCarKeyMan]

You’re very welcome. Yes a touch over engineered!

[@yolandakingston3806]

What a wonderful easy explained video on how to change this battery.MX30 1 year old and already needing to replace battery

[@TheCarKeyMan]

Yes these news keys swallow up batteries I’m afraid, not progress at all..

[@glenpuyallup3847]

Good job, watched another and he took the metal bottom end off, glad to find out that is not needed, makes it easier. Thanks!

[@Famcia]

„Bottom metal” piece is a wrong way, i suppose.

[@johasco]

Thank you. Got a CX-30 as a loaner, and the key fob battery had to be replaced. Since it was not my car, and they did not include an owner's manual (!), I had no idea how to replace it.

[@TheCarKeyMan]

Really pleased it helped and thanks for the feedback :)

[@kendrahoffman9544]

Thank you! My guy took his fob to a battery store but I wanted to change mine myself. Thanks to you I feel like a pro now.

[@TheCarKeyMan]

Well done, glad it helped :)

[@vson9159]

Thank you! Easy peasy and you saved me $$ by not having to go to the dealer to replace.

[@TheCarKeyMan]

Great stuff, really pleased it helped you :)

[@ricardoroberto7054]

Excellent video. I found getting the second cover off the most fiddly. Sorted now. 😊

[@t.j.oconnor7547]

Thanks, I have a 2022 Mazda CX-9 and always have trouble getting that key fob apart.

[@TheCarKeyMan]

You’re very welcome, thanks for the feedback :)

[@janeryan8499]

Really helpful instructions, my CX30 fob now updated with a new battery!

[@TheCarKeyMan]

That’s great news Jane, we’ll done 👍

[@robprieto]

Thank you for sharing these videos. It was very helpful!

[@TheCarKeyMan]

You're very welcome Roberto :)

[@mariorodriguez1132]

Thanks! This si the best tutorial I've found!

[@TheCarKeyMan]

Thank you, high praise and I appreciate it :)

[@csaunders5914]

It worked without a hitch, thank you!

[@TheCarKeyMan]

Excellent news, well done :)

[@user-lv2tb8zx4p]

Excellent - thank you. Well paced and very clear steps. Easy peasy!:)

[@TheCarKeyMan]

Thanks for the feedback :)

[@michaelchiang109]

Wonderful video which helped me change my fob battery!

[@TheCarKeyMan]

Thank you for the feedback :)

[@sheldonduffy9442]

Thanks, this was helpful. The Mazda key fob was not intuitive.

[@TheCarKeyMan]

Hi, yes, I agree. I have to look at this every time I change the key battery!

[@Sean-bp6xb]

Thanks for sharing. On my car, there is not slot for a key to open the door. The key in the fob is to lock the glove box. Watching from Ontario Canada🎉

[@TheCarKeyMan]

Hello Sean. Have a look on your door handles, both passenger and drivers side. Have a look for the symbol of a key. I expect that the door lock is covered over with a plastic cap. Under the cap is a door lock that you will need if the car battery ever goes flat

[@dinnuforever07]

Excellent man !! Your tutorial helped me a lot. Thanks!

[@TheCarKeyMan]

Thanks, appreciate the feedback:)

[@TonyPayneUK]

Excellent clear instructions, thanks very much. This made changing the battery for my CX30 very simple.

[@TheCarKeyMan]

Great stuff Tony, really pleased it helped :)

[@johnb2440]

Very helpful and well explained - and saved a trip to the Mazda service garage!

[@TheCarKeyMan]

That's great John, really pleased it helped you :)

[@espen.o]

This helped me out enormously on my MX-30 (same key) - thank you! 🙂

[@TheCarKeyMan]

You're very welcome, really pleased it helped and thanks for the info :)

[@jamesf7222]

Worked perfectly for my 2023 key, thank you

[@TheCarKeyMan]

Great stuff, thanks for the feedback :)

[@ckduarted]

Thank you so much for this video! have a great 2024!

[@TheCarKeyMan]

You're very welcome, and you :)

[@judys1336]

Super helpful, great step by step! Thank You!

[@TheCarKeyMan]

thanks Judy :)

[@rafavargas8701]

Thank you, great help! I did not have a clue how to open 👌

[@TheCarKeyMan]

You're very welcome, thanks for watching and glad it helped :)

[@Coco-ut8jc]

OMG - SO HELPFUL! Thank you!

[@TheCarKeyMan]

You're very welcome, glad it helped :)

[@mrstewartphysics]

Super helpful Steve. Thank you👏

[@TheCarKeyMan]

You’re very welcome, thanks for the feedback 👍

[@vitonen]

Massive thanks to you. 🎉😊 and greetings from Finland!

[@TheCarKeyMan]

You're very welcome, hope life in Finland is good and thanks for the feedback :)

[@karenmarshall2045]

Thank you!

[@TheCarKeyMan]

You're welcome Karen, thanks for watching :)

[@jeanninelanzetta8945]

Thank you so much , you were perfect with your instructions😊

[@TheCarKeyMan]

That's great news Jeannine , thanks for the feedback :)

[@rainiee3]

Thank you so much! I was so happy when I found your video. It is easy to follow so I was able to do this myself! Keep up the great work!

[@TheCarKeyMan]

You're very welcome, thanks for the feedback :)

[@pezzabyz]

Excellent instructions! Thanks very much. Nice to be able to do something by myself! Cheers!😊

[@pnp346]

It helped me with the key, thanks

[@TheCarKeyMan]

You're very welcome, thanks or watching :)

[@TheJoynesy]

Nice one for this! Really helpful 😃

[@TheCarKeyMan]

Great stuff, really pleased it helped :)

[@Gamer_Ayame]

This is so easy lol Ty!

[@TheCarKeyMan]

You're very welcome :)

[@123xjd3n]

Very helpful thank you

[@TheCarKeyMan]

You're very welcome, really pleased it helped :)

[@expeditionadventure318]

Amazing, thank you!

[@TheCarKeyMan]

You're very welcome thanks for watching :)

[@cfriedemann]

Super helpful. Thanks for preparing and sharing!

[@TheCarKeyMan]

Thanks for the feedback :)

[@martadavies9277]

Just one little detail. My new battery had a sticky label on it. It has to be removed, otherwise the fob won't work.

[@TheCarKeyMan]

Yes lots of people get caught out with that!

[@annasuchanecka9319]

Thanks for the very clear explanation. Even from a feminine perspective, it was bearable to replace the battery.

[@TheCarKeyMan]

Well done Anna, really please it helped and thanks for the feedback :)

[@annasuchanecka9319]

I am back again after almost 9 months, and I knew exactly where to look for instruction how to change a key battery. Thank you so much. I will be back :)

[@KSwenson]

I own a 2022 Mazda 6 and the key is exactly the same so the procedure is applicable too.

[@TheCarKeyMan]

Yes, if it looks the same, then the key should open the same :)

[@Famcia]

Good job, thanks

[@TheCarKeyMan]

Thank you too!

[@cb034]

Thank you so much for this! Helped me replace my batteries

[@TheCarKeyMan]

That’s great news, thanks for the feedback :)

[@jordanfraser4079]

Thank you. This helped me a lot.

[@TheCarKeyMan]

That's great Jordan, really pleased it helped :)

[@teresita5794]

Thanks so much!

[@TheCarKeyMan]

You're very welcome, thanks for watching :)

[@charlesimbimbo2070]

Thanks so much! Great instructions!

[@TheCarKeyMan]

Thansk Charles, appreciate the feedback :)

[@MrBlackie65]

Thanx for sharing..very helpful 👍🏻🍀

[@TheCarKeyMan]

You're very welcome :)

[@wealthychicks7699]

That was really helpful, thank you

[@TheCarKeyMan]

You're welcome, glad it helped :)

[@benmoussahoussam682]

Thanks from algeria

[@TheCarKeyMan]

You're welcome, hope life in Algeria is good :)

[@rca75]

muchas gracias.

[@TheCarKeyMan]

You’re very welcome :)

[@lasthead840]

Thank you … you help me a lot 😌

[@TheCarKeyMan]

You're welcome, thanks for watching :)

[@adamofailli3001]

Tante grazie!!!👍

[@TheCarKeyMan]

You're very welcome :)

[@paolabuitronquiroz8226]

Hello, I accidentally ran over my key :(, do you know were i could buy the individual parts that im missing to fix it? Because a new one is very very expensive

[@richardrobbins1422]

thx!!!!!!!!!!!!!!!!

[@TheCarKeyMan]

You're very welcome Richard :)

[@charankumarramineni9253]

Thank you

[@TheCarKeyMan]

You're very welcome Charan :)

[@simonwright-zi8ys]

Excellent cheers.

[@TheCarKeyMan]

Great stuff Simon, glad it helped you :)

[@dermick]

Cheers - very good video!

[@TheCarKeyMan]

Thanks for watching :)

[@paulatkins4968]

Cheers!!

[@TheCarKeyMan]

You’re very welcome :)

[@xSyberprox]

Thanks bud!

[@TheCarKeyMan]

You're very welcome :)

[@valeriewolfe2232]

Excellent!!

[@TheCarKeyMan]

Thanks Valerie :)

[@madwiganer]

I thought there must be an easier way, I'm ok with the battery at the moment but other videos they proper dismantle the key...

[@TheCarKeyMan]

Ah ok, so this isn't too bad to do, hope it helps :)

[@user-ou7jq8cx3g]

There is nothing smart about these Mazda FOBs.

[@norte75]

Thanks

[@TheCarKeyMan]

You're welcome, thansk for watching :)

[@valuerjtp7]

Easy to follow. All done. However, now my key is not taking to the car. I replaced with another battery. Still the car does not respond when I press the remote. Any further tips?

[@TheCarKeyMan]

Hi, did it all work before you started?

[@texas_travels]

maybe the keys are still in economy mode? to exit it, you need to press the close button 3 times and then press it 4 times and press longer.

[@vincentaugusto8177]

Merci 👍👍

[@TheCarKeyMan]

You're very welcome Vincent, thanks for watching :)

[@jeffgutierrez959]

My key fob doesn't have the key inside of it. Bought brand new

[@jacksmith2315]

Just got a 21 cx30. Second key had no battery in it. Replaced the battery and still nothing

[@TheCarKeyMan]

Does it start the car in the emergency position?

[@jacksmith2315]

@@TheCarKeyMan ya it starts the car, but doesnt lock unlock. The little red light never came on. I tried taking it out of sleep mode, still nothing. I noticed some rust and corrosion around where the battery should have been.

[@jacksmith2315]

@@TheCarKeyMan the dealership was going to reprogram the key, but yesterday they sent us to their key guy and he jus made us a new key. He said since i seen rust/corrosion, someone prob dropped it in a puddle or something, so it was most likely not going to work. He also said these keys are terrible. He has a pile of them with all sorts of different problems that cant be fixed. We got a case for the one that was working, he said very smart. These keys just explode when they get dropped and they are very expensive. You're lucky and smart for getting that case. Get another one for this new one cause they always brake

[@Fuzzylunatic]

How do you reprogram after you change the battery and it doesn't work?????

[@TheCarKeyMan]

Have u tried the old battery back in it?

[@soniamartineau6068]

I hate this key with a passion. The cheapest piece of sh...

[@TheCarKeyMan]

Sounds like you're having trouble Sonia!

[@valiantredneck]

Great tutorial. Thank you for your effort.

[@TheCarKeyMan]

You're very welocme, thanks for the feedback :)

[@mosbornemosborne]

THANK YOU !!!

[@TheCarKeyMan]

You’re very welcome, thanks for watching :)

[@AJFixie]

Thanks mate.

[@TheCarKeyMan]

You’re very welcome, glad it helped :)

[@user-bn7ts5ot5q]

Excellent thank you

[@TheCarKeyMan]

You're welcome Jose :)

[@1mddowell]

Thank you!

[@TheCarKeyMan]

You're very welcome :)

[@MichaelTitera]

Thanks a bunch!

[@TheCarKeyMan]

You're very welcome Michael and thanks for watching :)