What kind of warranty do you have on a”as is” car?

I bought a 2016 srx cadillac on 9/26/2020. On
the way home I discovers the “CUE” touch
display screen doesn’t work and the key
doesn’t do all of its functions I emailed the
salesman and he told me to bring it to the
service department. I am concerned that the
car may have other problems. What can I do?
The salesman said the car is not under
warranty