While I am in the process of searching for my first prius and having a lower budget, websites like carcomplaints show that 2010 had a lot of complaints compared to others, while 2011 had the most expensive complaints. 2007 also showed to be year with a lot of complaints. I narrowed my search to 2005, 2009 or 2012 and newer. My question, is this website accurate with the years? Should I be concerned with getting a car outside of those years I have identified? My goal is to find a car that will last me at least 5 years before I'm in a better situation financially to get a new prius.
You can get quite a bit of information from True Delta as well. Fom the page below, you can click on the link describing each combination of years and it break things down by individual year with actual issues spelled out. Toyota Prius Reliability by Model Generation | TrueDelta
IIRC, 06 and higher have (optional) side/pillar airbags. Not sure when they became standard. This was important to me. Also, later models (08 & 09?) had optional bluetooth but that's a cheap/easy work-around now. 04-09 Gen2 2010-2015 Gen3 2016-present Gen4
Guess what killer? They all brake and have issues,...even the all electrics, internal combustion only, and diesels.
who's killer? anyway, i'd say it's more about the individual car, age, miles, history, service and your ability to diy or write checks.