Brent Bridges

2016 GMC Sierra. Air bag warning light was coming on and off for a while till finally it stays on constantly, Took it in to the dealership and the service manager diagnosed the problem before reading the fault codes. He said it was most likely the passenger side seatbelt harness issue. Sure enough, when the technician checked it out he was right. He informed they have seen this many times. My question is if its that big of problem why hasn't GMC issued a recall.