On 3 separate occasions, while idling, the engine will sputter as if it’s about to cut off. The RPM will rise and fall and the engine will rev up and down and finally it will quiet down. Once the light is green, It is able to drive as normal. At the next light the same thing happens and the engine revs up and down sounds like it’s about to die. At a certain point the car will lose propulsion,(hard to notice at first when it’s stop and go traffic) even with the pedal all the way down, making it difficult to drive at a safe speed. The car will operate this way in a very limited capacity w stuttered propulsion for a minute or two then a warning symbol and alarm sounds letting me know there is a safety issue with the hybrid system and to stop safely. The car then becomes completely unresponsive and you must stop immediately and shut the car off. Once restarted the car jolts back up and operates somewhat normally.
NHTSA ODI 11704560