From what I can gather this only applies to transceivers bought in Europe. Below is an extract from the page on Ortovox's website, see the page for full details on the recall and how to get the issue resolved if you're affected by it.
- During search training, avalanche transceivers of the ORTOVOX 3+ model switched to transmission mode unintentionally after 120 seconds in search mode.
Internal tests showed that a certain production batch of the 3+ can exhibit this behavior.We are responding immediately and, as a precaution, are recalling all devices shipped to vendors after October 17, 2012, for inspection and a software update. These devices can no longer be used without an update.
See the Ortovox article and the contact numbers/email addresses here - http://www.ortovox.com/3149-recall-campaign-ortovox-3-avalanche-transceiver-1.html