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The Ford Fiesta is a subcompact car (B-segment in Europe) manufactured by the Ford Motor Company since 1976.

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My lock fob has suddenly stopped working on my Ford Fiesta 2012 plate

My key fob has stopped working on my fiesta. I can use the key to manually lock and unlock the doors.
can’t change battery as it’s a sealed unit

Update (09/02/2021)

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her is a picture of my fob

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Hi @joys2121 ,

Here’s a video that shows how to open your key fob to replace the battery.

The battery model used is a CR2032. It is a common battery available most everywhere e.g. supermarkets.

Note: Ensure that you insert the new battery the same way as the original. There is a +ve symbol marked on the battery so that you know which way it goes into the battery holder.

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Thank you so much for your help changed battery easily with the help of you tube had to re program after changing the battery but google helped with that

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Hi @joyspurrier, can you attach a photo of the key fob? (Click here for directions on how to add photos to your post.)

Even with the “sealed” devices you can usually get into them with a spudger (or a guitar pick, credit card, or flat head screwdriver). Once you’re in, you should be able to swap out the battery. This guide has a quick video example of using the key to open their fob.

Hope this helps!

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Adding images to an existing question

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2 - 5 minutes

2009-2015 Toyota Prius Key Fob Battery Image

Guide

2009-2015 Toyota Prius Key Fob Battery Replacement

Difficulty:

Very easy

2 minutes

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joy s will be eternally grateful.
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