Two questions for IS300H

[BigChange]

While enjoying some warmth and windows-down motoring on smooth French roads I noticed a high pitched whine similar to a turbo sound.  It seemed to be affected by acceleration.  I don't think the IS300H has a turbo so wondered what causes the whine.  CVT transmission perhaps ?

A slow tyre leak (and warning light) caused me some alarm.  Does anyone know if the compressor part of the "puncture" kit can be used to simply pump the tyres.?  Fortunately the leak stabilised. I would have hated to use the (to me) horribly complicated puncture kit. 

[NemesisUK]

I've noticed a similar whine recently whilst ascending a hill between high walls, windows down. I presumed it to be the electric motor(s)? 

[marrat]

It's the inverter.

[rayaans]

Yes the electric motors do whine in normal acceleration albeit only very slightly.

[200h]

i also have noticed a turbo whistle like sound when putting your foot down recently

[Carl1983]

Hi

yes it's the electric motor and inverter making the noise. My Auris hybrid used to make the same noise. Also yes you can use the air compressor in the kit as a normal pump if you require 

thanks 

[Ben1001]

Must be electric motor, my Gen 3 250 doesn't make this sound.