Two problems related to brake light have been reported for the 2006 Toyota Prius. The most recently reported issues are listed below.
The headlights on my 2006 Prius goes off while driving. Sometimes one light goes off and the other stays on. Sometimes the intensity of the lights vary. To correct the problem I have to turn my lights on and off. Also my brake light will go on and off. I have been pulled over numerous times by the police because of this problem.
Beginning February 2008, both hid headlights on my 2006 Prius would randomly turn off -- sometimes both at the same time if I'm not careful watching them. Turning the hid headlights off and back on will turn the headlights back on, but they will randomly turn off again. I've asked Toyota to investigate and they told me that it would cost $800 to replace the hid bulbs, as it requires removal of the front bumper to replace. They told me that they could not guarantee it would fix the problem, and that some other parts might need replacing as well. I believe this is a manufacturing defect as there are now over 500 complaints of this nature. In addition, one of my rear positioning lights is out. I've received fix it tickets for one headlight out and also this rear positioning brake light. Please issue a recall! as this is very unsafe that headlights can randomly turn off!!.