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Replacing Key battery (battery type?)

Utah

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Hi Guys,

Does anyone know what type of Battery and the process for replacing a battery in your car keys?

I've been having issues with the car Alarm going off and on. Which may be related to the Main Car Battery being drained + HFT not working. They are probably all linked but I want to start by replacing the batteries in both sets of keys.

Any Guidance would be great.

Cheer,
 
With the keyfob battery; remove the small screw on the underside of the key (maybe a bit tight as they are loctited in) prise the two halves apart using your fingers nails (using a screwdriver may damage the plastic) once apart pull out the small module and unclip these two halves and you will see the battery, replace with a CR1616 (halfords sell them) and refit all back together, shouldn't be any need to synchronize anything at least I didn't have to with mine!!
Cheers Pete
 
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