Toyota Prius had some difficult times some years ago, when the Japanese manufacturer ordered a recall for unintended acceleration. The most recent Prius recall is not so important, considering that Toyota is conducting a recall involving certain 2010-2014 model year Toyota Prius and 2012-2014 Prius v vehicles. Approximately 807,000 vehicles in the United States will be involved in this recall. Last time there were millions.

The involved vehicles were designed to enter a failsafe driving mode in response to certain hybrid system faults. Toyota has found that in rare situations, the vehicle may not enter a failsafe driving mode as intended. If this occurs, the vehicle could lose power and stall. While power steering and braking would remain operational, a vehicle stall while driving at higher speeds could increase the risk of a crash. 
 
This recall provides a remedy to address a new condition in the vehicles involved in the previous recalls announced in February 2014 and July 2015. The previous recalls did not anticipate this new condition remedied with this recall.

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To address this issue, Toyota dealers will update the software for all involved vehicles, at no charge. Toyota will notify the involved customers once the software update is available.