Hesitating 2017 Chevrolet Colorado

Problems that started a few weeks ago
Hesitation when acceleration forward or in reverse.
Noise when turning hard left or right ( not a gradual turn).

Took it to dealer - they say this is normal but they flushed the transmission anyway. . NOT!! in two years never had the issue until a few weeks ago.

Any CEL.
If still under warranty, try a different dealer.

Flakey throttle position sensor ?