Toyota Prius TSBs
The Prius has been assigned 881 technical service bulletins (TSB). The 2012 model year has been involved in the most bulletins.
TSBs contain recommended steps and procedures for diagnosing or repairing a known problem. They are issued directly by Toyota to service technicians. You'll often see TSBs used as evidence in lawsuits when owners feel the automaker should help with repairs.