Does anyone here know what this button (one on the left) does in a 2005 Toyota RunX S? It's only in some of the 2005 RunX S, so must be part of one of the factory options (looked on Wayback Machine and only factory options for those that I would think would add buttons would be fog lamps and reversing camera / blind corner monitor, and it's not the fog lamps as that's the one on the righ ). The car beeps when the switch is turned on but it doesn't seem to do anything. Any ideas?
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