There are these little plastic cams inside the column that break. It may also be the spring being kinked or jacked up that returns it to center.
You'll need to pull the steering wheel, cover, and the plate off and check everything out in there. You'll need some special tools as well.
This will give u an idea of the job. If you think you can do it, these instructions will help.
Personally, it's a lot of aggravation and I'd probably just keep shutting it off with my hand