Three problems related to adaptive equipment have been reported for the 2009 Toyota Prius. The most recently reported issues are listed below.
When my 2009 Toyota Prius goes over 65 mph the problem light flashes on the display and the the engine oil light illuminates as well.
The rubber cover to the outside truck latch has melted completely in hot florida weather and has become gooey to the point of dripping onto my license plate. The truck is very difficult to open and sometimes I am unable to lock or open the car because the trunk is not all the way closed. This is a safety issue because if I needed to get into the trunk to get a spare tire I may not be able to. Given many other reports of this issue dating back to 2007 models, Toyota should stop using this type of component and should recall this item and fix it with a different material so this does not keep happening. I am also concerned the exposed latch will cause electrical damage to the trunk or lighting because of severe rain that often occurs in florida where this problem seems prevalent.
My 2009 Prius has a non-navigation mulit-function display that controls everything from sound to temperature to hands free phone. Plus, it functions as the rearview camera display. In August of 2014 at about 80,000 miles the screen began to turn off spontaneously while driving (if it turned on at all. ) I have read many reports of this happening to the 2009 models. I am concerned most about the rear view screen because this model of Prius has large blindspots and I relied heavily on this screen.