Clock and Airbag Sensor.

So About 3 months ago I took my 2011 Aveo LT in, because I heard a crack under my passenger seat and my Passenger Airbag light kept flickering then it stayed off. So Dealer inspects, checked the computer, nothing is wrong. Now again, the light starts going on and off, sometimes just goes dim, but recognizes that someone ( when there is someone) is in the seat. Also knows when someone is not there. Took it back in, still didnt find anything. Im a bit scared that the sensor is bad, but no error messages when scanned. Has anyone seen this?

Thanks

P.S. I might not be able to answer quickly today, since we are in PR and under tropical storm watch...

The clocks on the Aveo are known for dimming and just being faulty. The circuit boards are substandard.