Have you spoken to either your local Hyundai dealer or even Hyundai UK ??

If not, then I would suggest doing so

In that case my guess would be that the tyre place who changed the tyre may have damaged the sensor so it could be worth changing that in the first instance ??

Have you tried over-inflating the tyre by 2-3psi ??

Normal pressure is around 34-35 on Hyundai's and Kia's (depending on the model) but if you go up to around 36/37 it might just re-set, then you can drop it back to 34/35 ??

I put a demister pad under my elbow on longer journeys

One of my front washer jets got blocked yesterday and despite my best efforts, I was unable to unblock it so started searching for a replacement but it appears that Hyundai want £22 for a pair :shock: :shock: So, I turned to Amazon and came across these and although it doesn't mention the Kona, they...

Buy a trailer ??

Is there an option to switch to a man's voice as he wouldn't feel the need to shout ??

Works just fine on my 2018 model

Welcome Sawboman...don't suppose you've brought Pepper Potts with you, have you ??

Can't seem them replacing it under warranty if it's not actually faulty.
If you're wanting to upgrade to the bigger battery (if that's actually possible retrospectively ??), then I'm sure there will be a very large fee involved !!