Modano

Hi, thanks for your inputs. It’s not the ASC, I turned it off the second I entered the car because I hate it 🙂 This whistle doesn’t really seem normal and even rather unpleasant hence my doubts… I’ll make a proper video to compare to yours, Matt.

Hi I got a 2015 300h a couple of months ago. I noticed (only noticeable with windows down and no music/radio) a slight whistle that only kicks in while the ice is delivering power (thus when pressing the pedal). When I suddenly release the pedal the whistling stops. no whistle at all while in EV. In maintenance mode , when revving the ice , it seems that this noise is not here but I need to confirm. i read here similar topics suspecting the high power pressure pump or using a low octane fuel (95, never tried 98). it is not brakes and is definitively coming from the engine bay. the noise is roughly this one but maybe not exactly .

Hello this reminds me this topic where a small motor was the cause. Seems easier to change on LHD through the glovebox than the RHD models : https://www.lexusownersclub.co.uk/forum/topic/131128-heater/ PS: in these cases, there is a lag in the infotainment panel as well. Doesn't seem to be the case here..