One problem related to brake light switch has been reported for the 2008 Toyota Prius. The most recently reported issues are listed below.
For the third time I have had to replace my brake light switch, this is a safety issue as it affect how the brake lights work. The break light switch, when malfunctioning prevent or inhibits the vehicle from starting properly. If the switch fails while driving, it can cause problem with the battery regeneration, this is in addition to causing a driving hazard while driving.