RE the air suspension problems
I drive a Landcruiser Amazon with Air suspension which also went wrong at 4 months old and 6,500 on the clock.
Car spent a month in the garage waiting for new sensors as Toyota had a "shortage" - probably fitting them in all those RXs - at least they sorted me out with a courtesy car in the mean time
The helpfully lady at Toyota UK thought the delay was beacuse Toyota had been having a lot of problems with the sensors and had therefore upgraded the part and there was a delay getting the parts from the supplier