Hybrid fart...

[pshawfocus]

Well, couldn't think of a better way to put it :-)  I noticed my two previous Prius occasionally did this, but the CT seems have had extra sprouts.  Go for a drive, park it up, wait a few mins and pfffft.   What is causing that?  I noticed my CT did it whist out driving at the weekend - I braked fairly hard after descending a hill and when I stopped at the bottom and eased off the brake there was a brief pfffft too.  No other ailments noticed...maybe it's just the outcome of a good fibre diet.   

[Zotto]

if it is like a cat purring it's probably the servo brakes pump, normal.

[thar]

Mine does this too. Shortly after I've parked up and engine off. Yep, sounds like a fart. It doesn't do it every time, but then I don't always sit in the car after I've parked up to notice.

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[Mikeyb999]

Yep, mine does it to - first time I noticed was when I stopped and opened the bonnet to top up the screen wash - made me jump out of my skin.

I assume its the servo releasing brake pressure?????

[peachy]

Only farting I hear in the Lexus is when my wife is a passenger 😆