Try deselecting the "ion" / Ionizer option in the climate settings. I've been reading in the new RR forum tonight that same high pitched noise has been figured out as the ionizer... makes sense maybe (?)

On mine, with ION button on, no noise though.

 

when I spec’d and ordered our 110, I did NOT build it with the Ionizer option…

 

I've recently posted about this on my 21 Discovery and suspect it's the same thing?, high pitched noise randomly as the power levels fluctuate?, worse when cold? I've narrowed it down now so that I can get the noise to come and go as I turn the heated windscreen on then off, does yours do this? I suspect its some sort of power regulator or alternator issue, could even be a battery issue. Mine's booked in in 3 weeks time to investigate further as they didn't find anything on first visit. Now I've narrowed it down I'm hoping for more positive news!

 

No buzzing on my 2022 90 Commercial

However l am at an age where my hearing tails off above about 8Khz.

My missus has never mentioned any buzzing noise and she hears everything, l've never managed to sneak in after a night out without being found out.

 

Has any member been able to remedy the issue? I’ve yet to have time to make the trip to my LR Dealer. Driving home from the office last night was unbearable. I couldn’t wait to get out. This is so disheartening. I can deal with minor quirks and rattles, but this so called dog whistle noise is striking a nerve

 

Could it be a noisy capacitor in the screen or another electronic circuit?

 

Of course, I am not hearing this sound, so I am speculating like everyone else, but over the years I have found the alternator to be a common source of high-pitch whining in multiple vehicles. It drives everything and with all the modern gadgetry, even a sublte flucuation in current can cause a cascading affect down the line. If you give it gas while sitting at a stop, does the sound change in any way?

 

I've been around automobiles most of my life, I really do not think the noise I am experiencing Is coming from the alternator.

 

Can you tell if it's coming from the speakers? put your ear to the different speakers when the noise is there, and see if you can identify if it's coming from there.

 

Very probably electrical. Pull the fuse for the infotainment, amp, etc to see if it goes.

https://www.google.com/amp/s/fuse-bo...020-2023-fuses

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