GM Recalls Millions Of Vehicles For An Airbag Software Defect

General Motors is recalling up to 4.3 million vehicles worldwide to repair an airbag defect that has been linked to one death. GM opened the investigation in June 2016, after the frontal airbags and seat belt pre-tensioners were alleged to have not deployed during an accident involving a 2014 Chevrolet Silverado. The sensing and diagnostic module (SDM) in these vehicles contain a diagnostic oscillation test routine which could be activated by pre-crash vehicle dynamics and, in rare circumstances, interfere with the SDM's proper deployment. GM will instruct owners, to return to their dealers to have the SDM software re-flashed. Vehicles that have had a previous air bag deployment will get the SDM replaced.

The recall involves:

• The 2014-2016 Buick LaCrosse, Chevrolet SS and Spark EV.
• The 2014-2017 Buick Encore, GMC Sierra and Chevrolet Corvette, Trax, Caprice and Silverado;
• The 2015-2017 Chevrolet Tahoe, Suburban and Silverado HD, GMC Yukon, Yukon XL, Sierra and Sierra HD and Cadillac Escalade and Escalade ESV.