Hard steering when turning?

Hi there. I have a few questions that might help me to understand your steering problem a bit better.
Are there any warning lights on?
When you turn the steering wheel, is there any difference in difficulty between the engine running and engine off with key on?
Are your tires in good condition and at the right pressure?
Please get back to me when you can, and we'll see what we can figure out. Thank you.

Do you hear any noise while turning? If not, it sounds like the turning rack is going out which uses an electrical motor to help assist the steering operation. I would run the codes through the CAN to see if any codes come up. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Here is one for about $99.00 if you need it:

https://amzn.to/3ZixY4v

Here is how to change the unit out if there are codes that come up the steering rack failure.