Transmission is starting to fail. Took it to Aamco and the transmission fluid is black. Checked 20,000 miles ago and it was OK. Already replaced the rear main seal at $1800. Looking at $2500 plus for a rebuild.
Unbelievable poor quality in major components of this RX300 model. Lexus should be ashamed.
That's your experience - our experience with the RX 300 has been very positive - well made, comfortable & reliable at 118,000 miles.