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How to Replace the Remote Battery on a Chevrolet Trailblazer

Model: Chevrolet Trailblazer KC, MK 1 - Years 2002-2009
Part: Key

In this video tutorial, see how to replace the battery in the remote for a Chevrolet Trailblazer by following a few simple steps: first, purchase a battery for the remote (model CR2032) and you will need a flat-head screwdriver. On the left side of the device, at the bottom, there is a silver button; press it and extract the metal key; now use this key to lever the back of the plastic and open the remote shell in two. Now you have access to the battery, so use the screwdriver to pry it out of its seat. Replace it with a new working battery and reassemble all parts in reverse order.

Updated on 2 July 2026 by ScegliAuto

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