Transmission problems with Lexus RX?

Hi I have problem in gear box lexus Rx 350 2010

Have a 2015 rx350 transmission downshift at high speed ( 70mph), just had the Trans rebuilt.

Brought a 350rx 2015 new only driver 65000 miles and the first gear of transmission hesitate when I take off, then it drive fine, is this the transmission already on a lexus , has no warrant, should I get rid of car, the repair is so high

GuruHXLY3, did you ever resolve the problem with your transmission? I have RX350, 2015 and am experiencing the same symptom.

RX350 . Ive driven a few and owned one . I experience the same slightly jerky change only when cold .Germain Lexus Naples examined it under platignum warranty and tell me its absolutely norma. They replaced the gearbox at 90000 and itsthe same . so dont worry .

good day.i have lexus rx 350 f sport 2016,transmission has issue and i will try to explain,when oil is cold transmission have no problem,bt after 3k to 5k i mean when oil is getting hot on first gear it's not clutch smoothly,feels like lurching.this is huppen onli from parking posision to drive possision or from nutral to drive.after no issue at all only first clutch to drive.should i have to change oil and filter?or what is your edvice?thanks in edvance