How to change a dead battery on a Mazda key fob

How to battery the battery on a Mazda keyless entry key fob. Models Carol, Scrum, Flair, Wagon, Crossover, Mazda2, Demio, Mazda3, Axela, Mazda6, Atenza, MX5, MX-5, Roadster, CX3, CX-3, CX30, CX-30, CX4, CX-4, CX5, CX-5, CX8, CX-8, CX9, CX-9, BT-50, Bongo, Familia Van, Titan. Battery size is a 3v CR1620. The battery type is CR 1620.

[@jan-henrikstecker990]

Nice, just destroyed my key following these instructions (at part that starts 00:35). Saw later that there are two little slots, into which a small flat screwdriver can be inserted to easily open the battery cover.

[@AntonadiasLongfoot]

🤣🤣🤣🤣🤣

[@suzstone5057]

Right?! So silly, used a different vid and it was way better

[@martinm.1967]

yes, very ungentle...

[@richardsotelo9875]

I broke 😢mine as well

[@bmwlover1981]

Thanks. This is the worst design. It isn't "easy" I just fucked my key and now I have to buy a new one. 8 Years as a auto tech. VW is easy.

[@leo_mars]

The second release should not be done by inserting that philips into the key like that. Instead there's a slit in the bottom to fit a flat head. That one takes almost no force, where's that philips push for me cracked the case a tiny bit (and didn't get it open at all). Instead of inserting the philips, look in that same side an you will see 3 flat slits, use the middle one

[@Yuhabahhablast]

Man I just about injured myself using his method. I did what you said and it worked perfectly. Thanks

[@anthonybrett7]

After seeing his method I thought, that can't be the right way, I saw a small slot "about 3-4mm which would fit a tiny flat head screwdriver and it opened up with ease, but some people don't think things through very well and will end up trying this dodgy method and break something!

[@stephenrolfe6484]

Did your method, flat head into slot barley any effort needed. Thanks 🙏

[@iceteevideos3599]

Thanks

[@iceteevideos3599]

👍

[@SpenserFL]

Thanks for the video, however there's no need to force it off like he did at 0:47 If you look closely, there is a tab to press in with a triangle apex pointing to where to push in the tab to lift the battery plate off.

[@jennyverano5576]

I wish I had seen this comment sooner 😅 That was the only unclear part of the video.

[@isof1341]

You just saved me $25 every 9 months! 🤗 Very easy instructions!

[@ccs2311]

thanks for the video...if anyone else is tired of replacing the battery too often, its easy to remove or shave down the vertical plastic supports under the battery to fit a thicker coin cell. i use a CR1632, it should be double the longevity and better range for a longer time, as well

[@trevorjex3146]

Thanks for the tip, I'm gonna try this!

[@July-A7]

Replacing often? Mine is 17yo. Never changed the battery, still the original one.

[@ccs2311]

@@July-A7 hero

[@amjidali588]

​@@July-A7wait when you put a new battery in, be lucky of it lasts 18 months, even a good branded ones ain't what they used to be.

[@annagomez6158]

First part was helpful. Then I broke the plastic when he said to use a screwdriver to gently pop out the other piece to get to the battery. Realized the plastic was all attached in that area. Watched another video that explained it has another button to push to open it without any force.

[@jonbraid2520]

Luckily I noticed the join in the plastic before I butchered my key too.

[@krishajessee3611]

Thought I was going to have to take my key fob to the Mazda dealership to have it done. This helps a lot thanks.

[@abhimanudara9879]

Valuable video, a shop wanted 25 dollars to replace the battery, I got the battery for 6 dollars and replaced myself thanks to the video.

[@RikMaxSpeed]

Very useful, worked for me. I think it's important to use a flat screwdriver, the catch is a little tricky and you need to slot the screwdriver into the top nooks in order to prise the top off easily.

[@jan-henrikstecker990]

I wish I had read this comment before destroying my key following these instructions...

[@drewbabydrew7742]

yes eyes agree

[@lovemichie]

Thanks so much!!!! I have gone a year with my auto key broken! Just watched your video, bought the battery and boom I was able to fix it in a few minutes exactly as you showed! My bf was impressed with my DIY skills haha

[@tc68bird]

Very helpful video. Only thing I'd add is to use a small flat-head screwdriver on the step where you're separating the two halves to access the battery.

[@theillustriousjohn]

Well, I searched YT for "mazda 626 key fob battery" and I got this video. And didn´t read the description. So I broke the plastic on the key. Thankfully it´s an easy fix with superglue.

[@astridcid445]

Thank you very much for you video! Thanks to your demonstration and the tips from the comments I figure it out how to change the battery of my key fob ❤
Thank you, I really appreciate it 😊🎉

[@optimist9328]

Excellent instructions and guidance. Was able to replace my weak battery without any problem. Thank you.

[@slow_dancer45]

Life saver! Now I don’t have to go to a dealer and spend a ridiculous amount of money on it

[@gtk1242]

This was a great video. I did it but I used a tiny screwdriver and once I found the right spots, it opened up easily. I had to laugh when the battery cover flew off. But this helped me 100%.

[@drewbabydrew7742]

Me too no hashtag

[@KuhmillB]

I come back to this video every so often. Thanks a million!

[@leahford9893]

Thank you so much for sharing this. I was able to successfully replace my battery without it costing me to take it to Mazda. Lifesaver!! 🏆😀

[@July-A7]

His method is wrong. Don't follow it.

[@dmiller1000]

This is the 2nd time in 12 1/2 years owning my 2010 Mazda3 that I've changed out the batteries in both fobs. They sure could have made it much easier to replace a battery. You need the tiniest of screwdrivers to pop the tab, and it's awkward to pry apart the base of the fob. It's tricky to get the metal crosspiece back in place before snapping the pieces together. Mazda could've designed this a lot better.

[@jacko64366]

Thanks. Scratching my head until you showed the hidden release catch. Useful video. Thanks again for posting.

[@mr_hidir1965]

Thx buddy, i opened my key... İt's still have a stock battery. 😱😱 But i changed rn thanks to you.

[@PhaedraDarwish]

thank you for the quick video that gets down to business. very effective

[@miscgloryofficial4527]

Is it easy to replace the key 🔑 (metal part only) removing it out of the top plastic part and swapping it with a new cut key easily as I got a key sent in mail and it’s wrong and their sending a new key, but their only sending the metal key not the top plastic housing it flicks out of (Mazda3, 2006)????????

[@whassupg89]

Thanks for this. Very easy to do. I thought I was struggling with the little catch at the start but I didn’t realise I’d already loosened it 👍🏻

[@defhead2]

Thank you I was able to swap my battery out easily following this

[@chloealexandradubois2250]

Thank you this was so useful! I’ve waited months before changing my battery because someone told me to have it change was like 100$! So I did it myself thanks to your video!! 😊

[@July-A7]

Why would you believe that?

[@meg.0403]

Thank you so much , it's my grandma's car and she had such a trouble thanks to you now her problem is solved ✨🙏🤗

[@MrTrashcan1]

Much obliged. Although not necessary to attack with the screwdriver. Gentry pry off cover at outer edge.

[@jennyverano5576]

Thanks for the video. It helped but I spent a lot of time trying to open the battery compartment 😅 that wasn't clear to me.

[@bigmatt2896]

do you have to reprogram the key if that battery has been flat for a while?

[@kattareeya7847]

This is a great video!!! Save my time and money to do it myself !! I only spend $4 for the battery thats it give it a thumbs up 🤙🏻🤙🏻🤙🏻

[@MeeNuFer]

Great video!!! I always break things from applying too much pressure and the video made me find the sweet spot to flip-off the battery cover - it was a bugger of a thing :P - thank you :D

[@masterblaster6434]

Thank you. You just saved me a nightmare!

[@declanmccue6]

If you pry from the side rather than the front it opens much easier

[@tnigle36]

Question could you use the dead key fob to start your car? Curious

[@tnigle36]

Could you use the key fob still if your battery is dead? Cause my Mazda will not crank or start!

[@rakeshb9899]

Thanks a lot ! Followed the steps in video and replaced battery.

[@damiansad8685]

When your pulling out the battery there's a little metal clip that is holding it. DON'T TAKE OFF THE BATTERY LIKE HIM

[@drjeremyrose]

don't rip the fob apart like this - you're likely to destroy it. Look for the release mechanisms to split the key fob and release the battery. Don't do anything with brute force

[@eddiej6195]

No release mechanism on the earlier keys, I did it this way and it came apart easily

[@thedondter]

Hi . Do you now what size battery I need ?

[@Metroid_Vaniac]

Yeah, just broke mine following this video. Watched a different one and got it off. Hopefully it can be fixed with some glue...

[@amberphilpot5465]

@@thedondter CR1620

[@nathanharvey2568]

There is a backing release to get to the battery if there isn't a notch in the middle top to do it. It is very easy. It looked like that guy didn't have a notch and didn't look for the backing release. It just pops off just like the key does.

[@claricevdl]

Hi. I just tried this a mine came apart. I have two little tiny black pieces n idk where they are meant to go

[@debrastearman2015]

Thank you! Battery changed successfully! I'm feeling quite resourceful.

[@AgentAlmost]

Once the switchblade key is released, there's a notch near the front with a triangular arrow pointing to it to *gently* pry on to release the backing.
I think what trips some people up is that the backing is much wider than the actual working circuit board portion.
But anyways, a small flat head in that notch. A little lever action, then pulling the rest with your hands is better than the "technique" shown in the video.

[@nataliaa.c.9567]

this is actually wrong, there are two types of fobs. one with the arrow and one without. as you can see, his does not have an arrow and does NOT open the way you described

[@tickedoff1438]

“Careful not to damage the case…”.
Then proceeds to damage it. 🤣
Just kidding, thanks.

[@emmanuelosu8002]

This video did help me, thanks

[@MegaSale27]

Thank you for posting this video i was desperate...

[@benazirkhatri1700]

Thanks much appreciate, it’s really helped me.

[@Chibymoh]

Thanks man. Short and efficient 🤙

[@garypurkis7184]

cheers mate! just saved 90 bucks

[@fishmonger5026]

"be gentle" *RIPS IT OPEN* hahaha my man!

[@jaybee727]

Massive help. Thank you!

[@heshi795]

L0

[@pj-vb5rk]

The little catch on the first step is more fragile than I expected, literally a tiny hook of plastic and doesn't need that much force to release it

[@kareemkshams8750]

Thanks for the video

[@aus4502]

Thank you for the helpful video. 🙏👍

[@jonaslindell3085]

Thanks man, really helped!

[@mereadani]

I’ve done the first part, now the second part feels like it’s practically glued together 😩😭

[@omarhussain2056]

My key was working fine before but decided to change battery now car won’t lock or unlock via remote the light on the key comes on can any one help? Was perfectly fine before

[@margaretkennedy7137]

That was a great help .. thank you!!! 😊

[@bawselife6859]

Man thats how u pry it open.. rest videos make it look easy... i put back of my spoon in key slot and pryed it open easy as

[@jg1way]

THANK YOU VERY MUCH!! This helped me a lot!

[@Ironsoulsmasher]

My two halves are stuck together. There is no way i can remove the key part from the bottom. It's as if theres nothing happening when i use the screwdriver in thst first slot. Every video ive seen, the key part comes out effortlessly when that part is done. *Sigh*

[@luatala8008]

You do it the hard and dangerous way for the 2nd part....much easier and safer is to prise the other side open and best to use a small flat screwdriver.

[@02ujtb00626]

I think I am gonna just keep using the key the old fashioned way. This seems extra just for a battery when I can just insert my key into the lock like I have been.

[@dontuno]

No offence mate but that really was an exercise in how not to do it! You ran a very serious risk of damaging the fob and importantly the internal circuit board.

[@MarineCy]

he first put the screwdiver inside the bottom plastic instead to the top side between the top triangle and the small crater that a phillips screw driver fits in that separates the two pieces.
The way he did it could brake the bottom plastic and destroy the whole key

[@paveljemanean3677]

Mersi mult respect

[@disciplinefreedom5380]

Thanks heaps mate. Helped a lot.

[@relaxme2251]

I changed my 2005 mazda 3 key battery but after that key lock and unlock is not working. Anyone knows the solution please?

[@99thruth]

Same problem here

[@danprice7973]

Massively helpful thanks so much

[@beton9762]

It's very easy to take the cover off using a smaller screwdriver in the hole to the right instead of the hole in the middle. So easy, no damage, nothing.

[@kayegillanders8819]

I can't do this. It's driving me nuts. I wouldn't mind but I've done it in the past.

[@pinkfloydian100]

Video is too dark. Can’t see where you’re putting the screw driver

[@RMA484]

Where to buy battery

[@SheeshMaster64]

So can I really not start my car until amazon delivers me batteries?

[@leandraanliker660]

Why i cant do this by my key mazda 2? It didnt work....

[@EJAZenarosa]

Thank you so much.

[@CAJayPop]

Thank you this was helpful.

[@BenDaresAll]

It's rather dark. Can't see where you pop the top off.

[@muhammadqureshi8044]

Thanks a lot 🎉

[@Dan_druft]

Thanks for that, it's easy when you know. Although the battery was a pig to get out.

[@اشوراشور-م8ث]

صارلي ساعة اريد افتح واغير الباتري وما كدرت إلى أن شفت هل الفلم عاشت ايدك

[@essyaboii]

Cr1620

[@gervanwilliams2664]

The chance of breaking the fob is pretty high; perhaps designed intentionally. This is more complicated to do than necessary. Check this one out: Mazda 5 Flip Key Fob Battery Replacement (2006 - 2015) - TH-cam

[@sr70rr]

Thank you!

[@coilover2005]

Great video! Stupid key Fob design.

[@Baak.]

Use a knife to pri open the side on the metal part it pops right of without it flying away with force and possible break it... But stil it's helpful to watch thank you

[@BectorVlog]

Thanks Man, feel like Winner!

[@rickyseguna23]

Great video, saved me to 🙏

[@davidhongkonger]

Come on, you DON'T crack open the plastic battery cover brutally with a screwdriver but pushing the rectangular hole (fits with a Phillips) with a big arrow pointing at it at the front bottom center of the key fob....... a lot of people will destroy their key fob cover doing your way......

[@gavinleiwang]

True. This video is very misleading. I found another video that shows the correct way.

[@johnsheridan8241]

Thanks for your video, really helpful :-)

[@Jaidabecca]

The lighting/angle sucks. I can't see what "tab" you're hitting to release the top part of the key. I mean, I eventually got it but that was my issue with your video.
Still, thanks!

[@mikevanhek6740]

Change my battery, now the remote key doesn't work anymore for opening and closing doors..

[@michaelwebster3682]

What a butcher.

[@acebacker1]

😂

[@acebacker1]

Yes - but I’ve still watched it three times and learnt. And I know it’s a 1620. So, worked for me 😊

[@rallyburnz2simracing416]

Thankyou for help

[@drewbabydrew7742]

Anybody know how to replace (piece )on my cruise control in a old mazda 3

[@wannabeosho4150]

Try this method only if it's your mother-in-law's car.
After the first click don't insert the Philips and yank it like this in the video.
You will break something. There are three small notches - just gently push the middle one with a fpat screw driver and Bob's your uncle.

[@scottbailey7933]

Unfortunately, this video is so dark I could not see clearly the key case opening

[@jacktafatu8360]

Thanks for sharing, although like Anna Gomez first part was helpful, second part unfortunately was not. It needed a flat blade screw driver to fit into a slot provided at the centre of the hob, and gently twist the screw driver, allowing proper separation of the two halves. you would have easily stab yourself had the screwdriver slipped. Always keep safety in mind and hope I haven't offended you in any way.

[@jus1taj]

Thank you.

[@HolyAssassin167]

Think I'll stick to putting it into the manual lock 😅

[@digitalgal]

thank-you so much!!

[@JamesBond-cv3tt]

Thanks brother

[@superhowto9288]

Any time

[@Junscorolla]

Thank you broke the tap lol gone glue it ,

[@dojun849]

I'm happy to save money with 6 remaining batteries as well. I should pay for it 30 dolloars LOL

[@magdaklima3824]

thanks so much