2010 Prius Starts By Itself !!!

Doesn't make sense to me. If you stop the car and press the power switch to shut the computers down, there's no way it should start by itself. Since it's under warranty, take it to the dealer.

Regarding your 2nd sentence---how can you tell from 4mi away that the car has started????

 

Sounds like you're not turning it off with the start/stop button. Perhaps you are confusing the Park button with Start/Stop.

 

+1... The car is definately not off when you are leaving. It will not just start.

Only other explanation is you have a remote start enabled which will screw everything up.

 

You know how when you start the car you press the on/off button? Well, when you stop the car, you need to press the on/off button.

You need to read the manual, or even the quick start guide. if that's too much then watch the DVD that came with the car.

 

DVD I got no stinking DVD
Is that UK thing

 

I got a DVD!

 

In regard to the vehicle starting with the key 4 miles away, is it possible that the second Smart Key System fob is actually in the vehicle?

 

Could OP be hearing the solar fan starting and stopping
I do not know if OP has a solar roof


My father in law was driving it, and I was 4 miles away with the key in my pocket (and talking to him via cell phone).


So the car was running and he got in drove away without a key

 

Once the car is started...you can drive it without the key. this is purely safety. Imagine your smart key running out of batteries while youre driving in the middle of the freeway. My suspicion is that the OP is simply not pressing the power button to turn off the car when he leaves. Before you leave the car, make sure everything on the dash is off. The only thing that should be lit up when you leave is the ODO and the clock. the "Ready" light should be gone.

 

Or could the remote A/C have been pressed? I admit I was confused by this when, after pressing the remote for longer the usual, the lights came on and it sounded as if the engine was running.

 

My wife reports that she unlocked our new 2010 in the normal manner by grabbing the door handle. She opened the door and the Prius "booted" up. That is the Prius splash screen on the instrument display came up and the car was on! Is she nuts, or do I have some other problem?

 

Are you sure she saw the splash screen, or did she just see it on?

My guess is it was not turned off. I am unaware of a "screen saver" or anything where the display goes out, and would show the splash at a later time.

 

mabe the momentary switch has fault

 

This sounds a bit more like confusion that car fault. I may be wrong, though.

 

Com'on. This has got to be a joke?

 

The OP has not been back since July... I'm thinking someone wasn't turning OFF the car.

Unless he/she is back with a new nickname, now that he/she has learned to operate the car (I would).

 

It has become self aware