Mazda 2017 spare key not working after battery change?

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May 18, 2025 at 9:53 am #1826 Reply
Anna
Really boring topic, sorry….our spare car key hasn’t worked since I replaced the battery in it. Now I know this happens a lot, and you have to do it quickly if you change it yourself. I followed all the advice but hey ho here we are.

Does anyone know of a way to sort it without me having a heart attack at the Mazda garage?

It’s a 2017 Mazda, we have had it 2 years.

Any actual experience with this welcome! Thanks!
May 18, 2025 at 9:53 am #1827 Reply
Vikki
Just be careful you haven’t broken the motherboard. I took mine to Timpson, and they broke it, they had to replace the whole key.
May 18, 2025 at 9:53 am #1828 Reply
Vikki
Have you got the battery in the right way? I bought 3 new batteries before I realised they were the wrong way round. Worth a look.
May 18, 2025 at 9:54 am #1829 Reply
Cheryl
My garage changed mine for me, the cost of the battery was under a fiver. They didn’t charge me to fit it, and rightly so.
May 18, 2025 at 9:54 am #1830 Reply
Chris
I found cheap batteries were not good replacements (we have had 4 Mazdas)
May 18, 2025 at 9:54 am #1831 Reply
Georgina
Definitely check if the battery is the right way round. This happened to me.
May 18, 2025 at 9:54 am #1832 Reply
Steven
Try to Google sometimes you need to pair the key to the car, otherwise speak to an auto locksmith most are mobile, I know there is one in accrington.
May 18, 2025 at 9:55 am #1833 Reply
Kate
Have you tried programming it? I did it myself watching YouTube to save taking it to garage
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Mazda 2017 spare key not working after battery change?

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