General Motors is recalling around 4 million vehicles worldwide. According to AP, the recal is related to a software defect that means front air bags may not deploy and is linked to 1 death.
As NHTSA explains...
Potential Number of Units Affected: 3,640,162
General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test.
During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.