Lexus RX350 uneven transmission shifting with flat spots and surges at 20 MPH and 60 MPH on Lexus RX350

Some Lexus RX350 owners report experiencing uneven transmission shifting, characterized by flat spots and surges at specific speeds like 20 MPH and 60 MPH. These issues may stem from various automatic transmission problems, which have been noted to occur both early in the vehicle's life and after accumulating significant mileage. Commonly reported transmission-related issues include slippage, leaks, and overheating. Additionally, some owners have observed unusual noises such as whining, humming, clunking, or buzzing, which can indicate potential transmission failure. To address these symptoms, it is advisable for owners to have their transmission system inspected by a qualified mechanic or Lexus dealership and to check for any recalls or technical service bulletins related to their model year. If problems persist, seeking professional assistance is crucial to ensure the proper functioning of the transmission system.