Engine turning on and off rapidly when stopped

I've got nearly 22K on my 2004 Prius. My Prius has done this about once per month since the beginning. I stopped worrying about it at about 2K, that's not to say something isn't wrong tho. It's like the car can't be sure whether to shut off, or stay on. My daughter's Prius does this as well. I think she would say it happens more than once per month.

As for the transmission hesitation, this sounds like the traction control has kicked in. Whenever the engine detects that one of the wheels might spin freely, the computer puts a stop on the whole thing. So there is no "laying rubber" with the Prius.

On the other hand, ALL cars hesitate when you push on the gas. Since our car has a computer that has to make sense of what you want, using what you did to the gas pedal as a source of data, the computation also takes a split second.

If I've got it wrong, others will come along as well.

 

Was the battery SOC at 8 bars? If so, the computers were probably trying to bleed down the SOC a bit.

 

My Engine was doing this today and the SOC was ay 8 bars, is the above true?

It was also somewhat cold.

 

Yes it's true, it's happened to me several times, always at 8 bars. It happens quite often with people driving in hilly terrain.

 

I'm totallt agree with you. That's what happened. Nothing wrong with the transmission. The Op can enjoy the technology.