Author Topic: Changing Key Fob battery  (Read 13591 times)

Offline Gel

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Changing Key Fob battery
« on: June 07, 2019, 11:09:37 am »
Though my fob won't need new batteries for a bit, I see that the manual says to take to the dealer for this simple task. ???

Am I right to assume this is a simple DIY task, as it's always been on my other cars fobs?
Gerald
Thames Valley

Offline BigAl

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Re: Changing Key Fob battery
« Reply #1 on: June 07, 2019, 01:07:03 pm »
Simple... But easier to watch than describe
https://www.youtube.com/watch?v=BAeB6eze73U

Alan

Offline Gel

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Re: Changing Key Fob battery
« Reply #2 on: June 07, 2019, 03:44:00 pm »
Thanks very useful. I've got one of those plastic trim removers, so
would use that to prevent damage to key fob.

Do you know is battery a CR2025?
Gerald
Thames Valley

steve101

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Re: Changing Key Fob battery
« Reply #3 on: June 07, 2019, 07:17:28 pm »
Simple... But easier to watch than describe
https://www.youtube.com/watch?v=BAeB6eze73U

Alan

Thanks for that Alan. Don't need it yet but will sometime.

Yes, it is a 2025

Offline Dave

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Re: Changing Key Fob battery
« Reply #4 on: July 08, 2019, 04:05:20 pm »
Done this a few times over the years, very simple procedure.

Offline Gel

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Re: Changing Key Fob battery
« Reply #5 on: November 08, 2019, 11:40:56 am »
For Info;
have just had to change one of my fob batteries following a dash warning;
car only delivered in May, and would have expected a better life :(

See fob is actually made by Mitsubishi!

Here's an image of keyfob taken apart:
http://gj.unospace.net/CX-5/KeyFob.html

PS;
For a reason I can't fathom, this doesn't render in EDGE browser, but is OK
in I Explorer.
« Last Edit: November 09, 2019, 04:51:59 pm by Gel »
Gerald
Thames Valley

Offline Gel

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Re: Changing Key Fob battery
« Reply #6 on: November 09, 2019, 08:02:26 am »
UPDATED

I wonder if anyone else has had this grief. Battery removed from fob was showing a voltage of under 2.9v.
New one showed 3.3v. Despite fitting new fob battery I'm still getting key fob battery warning
on dash.
Will the system eventually correct itself?
Gerald
Thames Valley

Offline ROCKETRON

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Re: Changing Key Fob battery
« Reply #7 on: November 09, 2019, 09:32:20 am »
If you have put in a new battery then the car may be seeing your spare key fob and that one has a low battery.

Offline Gel

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Re: Changing Key Fob battery
« Reply #8 on: November 09, 2019, 04:12:07 pm »
No even when miles from home, I'm seeing either "Key Not Present", or "Low Battery" alert;
I'll get some alternative cell batteries & try one to see if it fixes.
Gerald
Thames Valley

Offline Anchorman

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Re: Changing Key Fob battery
« Reply #9 on: November 12, 2019, 08:34:00 am »
Where is the key?  Not inside one of these faraday pouches by any chance?
Eagles may soar high but weasels don't get sucked into jet engines.......

Offline Gel

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Re: Changing Key Fob battery
« Reply #10 on: November 15, 2019, 08:25:55 pm »
Trying again with a Japanese Maxell battery, has cleared the fob battery warning :)
Gerald
Thames Valley

Offline dunhill1984

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Re: Changing Key Fob battery
« Reply #11 on: November 24, 2019, 01:01:54 pm »
I have a low battery warning now after 14 mths of ownership. took fob to timpsons they charge £9.99 to fit but did not have battery in stock.....awaiting delivery.
living a stress free life near dona nook (nth somercotes) bombing range on lincs coast

steve101

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Re: Changing Key Fob battery
« Reply #12 on: November 24, 2019, 01:25:38 pm »
Changing the battery is very easy. Charging £10 to do it is a rip off. I have recently changed mine. If you watch the video you will see how easy it is. Just make sure you use a 2025 battery. 2032 are interchangeable with 2025 if there is room but there isn't room in our key fobs. For those who don't know, 2025s are 2.5mm thick and 2032s are 3.2mm thick.

Offline Deeps

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Re: Changing Key Fob battery
« Reply #13 on: December 04, 2019, 10:22:51 am »
took fob to timpsons they charge £9.99 to fit but did not have battery in stock.....awaiting delivery.

Blimey mate, they didn't see you coming but rather sent for you lol. What a rip off.
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Re: Changing Key Fob battery
« Reply #13 on: December 04, 2019, 10:22:51 am »