Toyota has my respect for achieving the optimal combination of value and quality.
I bought a used ES-300h Lexus hybrid from the Lexus dealer in July 2019. It has been perfect except for a whining noise between 5 and 15 miles/hour, peaking at 10 miles/hour. It makes the same noise in forward or reverse (which eliminates the CV transmission ?), running on engine or battery. I have 2 friends owning the same car, one older and one newer and neither have this whine.
I took a test drive in a new ES-300h and no whine. I took the car into the service department at the same dealer where I bought the car. After a long delay, the service manager took me for a test drive in an ES-300h with the same vintage as mine, and it had the same whine. Shame on me for suspecting the long delay was spent in finding a whining car, since the service manager is very busy.
The noise itself does not bother me, but anyone knows that moving parts should not whine. I worry that there will be an expensive repair in the future when the warrany has expired.
Can you please tell me what is causing the whine ?