I have found that if you are applying any pressure at all to the wheel it doesn’t kick in. To feel it working in the tests I’ve done, I very lightly place my open palms on the wheel (so I can quickly grab it if things go sideways) then let the car wander natural to the edge of the lane. Then it noticeably nudges the car back into the lane.I've had the Bolt now for a little over a week. No audible warnings, and I certainly have never felt a tug on the steering wheel. Yes, the little light is on on the steering wheel. All I have is a yellow symbol on the instrument cluster, telling me the system is on.
I'll try it out again (but pay closer attention) tomorrow. Maybe I'm doing something wrong(?).