Vehicles Affected: Approximately 109,000 model-year 2012-14 Toyota Prius v hybrids
The Problem: The software settings for the motor/generator control engine control unit and hybrid control ECU could result in higher thermal stress in certain transistors, potentially damaging them. If this happens, various warning lights will illuminate and the vehicle can enter fail-safe mode. In rare circumstances, the hybrid system could shut down while the vehicle is being driven, resulting in a loss of power and the vehicle coming to a stop.
The Fix: Dealers will update the software for both the motor/generator control ECU and hybrid control ECU.
What Owners Should Do: Toyota has not yet announced an owner notification schedule. Owners can call the automaker at 800-331-4331 or the National Highway Traffic Safety Administration’s vehicle-safety hotline at 888-327-4236, or go to www.safercar.gov, for more information.
Need to Find a Dealer for Service? Go to Cars.com Service & Repair to find your local dealer.
Former Assistant Managing Editor-News Matt Schmitz is a veteran Chicago journalist indulging his curiosity for all things auto while helping to inform car shoppers.