Just changed the battery on my 2014 Equinox and not I get the Power Steering Pop up when I start it. Car cranks fine, but now having issues with the power steering. Could the new battery be the issue? I've never had this issue. I can't afford the spend $800-1200 to get the whole thing replaced.

 

Almost all troubleshooting starts with a full scan of all systems. Your local Autozone, Advance Auto Parts or O'Reilly should be able to do that for you for free. Once you have the codes, come back here and share them. Only then will you get anything close to an educated guess.