Originally Posted by Prius
Motor only acts up every few days and stays running until I manually shut her off.
What does that mean ?
The gas engine (ICE, Internal Combustion Engine) tends to run a lot more sometimes during extreme weather.....either too HOT or too COLD.
But that is also a possible sign of the high voltage hybrid battery going bad.
IF.....you still have the original hybrid battery in place.....this might be bad news.