Transmission Hesitation on 2015 RX350

[Willem]

• Shortly after taking delivery of the car I began to notice on an intermittent basis a 2-3 second pause when I attempted to accelerate from a low speed to a higher one or from a stop.  After focusing on the circumstances in which it arose, I realized that it occurred most often on city streets  when I was attempting to accelerate out of a slow turn and almost stop or drive up a residential hill, or simply to move away from a light without coming to a complete stop . It happens less after completely stopped but does exibit the same problem. 
  After attempting a  turn from a slowed position, putting pressure on the accelerator, and experiencing a delay in acceleration that nearly caused me to be broadsided. Appears that transmission either does not downshift and is still in higher gear or shifts too early and then  let my foot off of the accelerator and reaccelerate there is a 3-4 second delay and then it drops down to lower gear eventually after 3 or 4 seconds. and accelerates.

Happens more often after turning right, but also left as well on a less frequent basis