I don’t really know much about that except for the fact that it does not have any form of a digital transponder that actively sends data it could be storing it though. Here is a site about vehicle privacy where I just looked up a random gen 3 Prius vin. (https://vehicleprivacyreport.com/report/?vin= JTDKN3DU1A000806#)
Yeah I was able to get the books from my local library so I was really lucky but yeah for the most part the prices are ridiculous.