Airbag light 17 silverado

[jaycrew1]

I have a 2017 Chevy Silverado 4x4 1500 Crew cab truck. The airbag error light is on in the dash and message center. Local mechanic ran codes and found out that there was a bad airbag/collision sensor and a seat belt code. I replaced the faulty sensor under the core support. We cleared the code, just to have it to return again. Does anyone know what to look for when there is a seat belt problem. Truck has 110,000 mile on it. the code just came on 9,000 miles ago. Thanks