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There are two types - one smaller than the other. I think yours will be the larger. It is ...

There are two types - one smaller than the other. I think yours will be the larger. It is if the manual door lock key slides all the way through the key fob.

Take out the slide key and use the end to gently push under the spring release - ie push into the fob, and you will feel the top of the fob lift up a little.

Pull up the cap and there are two batteries located in the cap. Replace and slide the cap back into the fob.
 
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