RobL Posted July 29, 2023 Share Posted July 29, 2023 (edited) Hello fellow members, Sienna XLE Premium 2019/3rd generation I was wondering if anyone has encountered the same issue and if anyone knows how to fix it? Starting from around 2 weeks ago my Sienna started to play this message: "Communication module activation failed. Please make sure in an area with good cellular coverage and try again." Usually it happens as soon as I start the engine but sometimes repeats while I am driving. Any idea what this is related to and is it possible to fix it without getting dealership/garage involved? Your help would be much appreciated Rob Sienna audio.mp3 Edited July 29, 2023 by RobL updated the attachment Quote Link to comment Share on other sites More sharing options...
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