FYI there was another new hybrid owner here who was getting in the 30s.
She took her hybrid into the dealer.
They said nothing was wrong.

She came to my house.
I drove her (in her car) on my commute route.
The hybrid got 62 MPG.
She was astonished.

Your low MPG is most likely your driving style.
Keep working at it.

Need fewer troops to support.
Drive a hybrid.
Best tank 71.65 MPG.

Before this car I spent two years learning hypermiling on my 2004 HCH1.