Filed under: Hybrid , Recalls , Toyota Toyota has announced a set of voluntary recalls covering 960,000 Prius , RAV4 , Tacoma and Lexus RX350 models in the United States to address two separate issues. Worldwide, Toyota will have to recall a total of 1.9 million Prius cars. The Prius recall affects about 700,000 2010-2014 models in the US, due to a fault in the motor/generator control ECU and hybrid control ECU software. It says that the current software could result in high temperatures on certain transistors and possibly damage them. When it fails, the error forces the car into failsafe mode. Toyota says that in rare circumstances, it could even shut the hybrid system down while the car is being driven. Toyota spokeswoman Shino Yamada told Automotive News that the software update should take about 40 minutes, and dealers would start to be notified about affected vehicles today. She also told them that the first reported glitch occurred in May 2011 in the US when the system overheated and the car entered failsafe mode. The affected cars were built between March 2009 and Feb. 5, 2014, according to Automotive News .