Two problems related to engine oil leaking have been reported for the 2010 Lexus RX350. The most recently reported issues are listed below.
Oil hose leak. Oil pipe which connects to the engine. While driving the hose will leak and you will never be advised that the oil is low. "a service bulletin" went out to replace the plastic hose to metal. When you take the car to the dealership they try to tell you its not a safety issue but an engine not receiving oil and your truck just breaking down is a safety issue.
My car started leaking oil all over my driveway and into the garage, as soon as I realized what happened I drove it to the dealer. Dealer said front oil cooler hoses were leaking and that I was not the first. Dealer asked Lexus to recall and were refused. This defect is all over the internet since the company used rubber hose instead of metal which they used to use and should have continued to use. The part was covered under warranty but my driveway and garage floor are ruined. The company 1-800 number service person was rude. I was never notified this part was a problem. Other drivers are being stranded on roadways and their engines are blowing up. Please help. This needs a class action suit or a forced recall.