Can not use brass valve cores in aluminum TPMS sensors, they come with nickel plated cores.Weird - Toyota uses metal valve caps stock on nearly all Lexus models from the factory. It was the case with a 2018 GX(Tahara, Japan) and a 2019 RX(Cambridge, Ontario in Canada).
The valve stem on TPMS sensors is aluminum or magnesium(for the clamp-in types - snap-in types still use a rubber-clad brass body) - the valve cores are plated brass or stainless steel. I think the big no-no is when an aftermarket metal acorn cap made from chrome-plated mild steel is used on a clamp-in sensor.
Again, see this all the time where someone doesn’t know any better puts a brass one in, and out comes the drill again.
I have had to drill out hundreds of sensors in my day.