When engine is cold and I insert the key, an electrical whirring/whinning noise comes from the transmission pan area. The dealer says it sounds like the transmission "accumualtor" is powering up. They checked a couple of other RX300s on the lot and they do it too.
My question is, does anyone know what a transmission accumualtor is?
I was surprised that the dealer wasn't sure what it was, that this is the first time they ever heard of this and I sent a note to Lexus and they didn't know anything about it either.