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How do you replace the battery of the 2002 Opel Astra key?

Model: Vauxhall Astra Astra G - Years 1998-2006
Part: Key

This video tutorial, as the title also specifies, applies to the keys of Opel and Chevrolet cars in general, including the Opel Astra mentioned in the subject. The procedure for replacing the power battery of the key/remote, a 3v model CR2032, the most common one, is quite simple: after obtaining a small flathead screwdriver, we leverage the junction of the two halves of the shell to open it, then using the same screwdriver, we remove the aforementioned battery from its slot and insert a new one. It is advisable to perform a test before reassembling everything.

Posted on 14 January 2026 by ScegliAuto

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