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Replacing the Car Key Remote Battery

Model: Lexus IS MK 2 - Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: Key

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Video tutorial

This video shows how to replace the battery in the car remote. Place the remote on a flat surface, extract the emergency key from the housing, marked by the bright silver finish, using the lock button on the top. Using a lever, separate the two parts of the remote casing, the button panel and the cover.

At this point, the circuit board will be visible; remove it, noting the orientation facilitated by a chamfer on the top right corner. Flip the board over to find the battery.

Remove the 3-volt flat battery and replace it. Reassemble everything, first the board, then applying slight pressure to the remote casing, reinsert the emergency key, locking it with the appropriate button, and finally test the remote's functionality.


Updated on 9 February 2026 by ScegliAuto


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