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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.

A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.

General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, 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.

A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.

General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Corvette vehicles manufactured February 12, 2014, to March 14, 2014. Due to an improper weld on the rear shock absorbers, the shock absorber tubes may separate from the shock absorber clevis brackets resulting in a sudden change in vehicle handling.

A sudden change in vehicle handling increases the risk of a crash.

GM will notify owners, and dealers will replace both of the rear shock absorbers, free of charge. The recall began on August 18, 2014. Owners may contact Chevrolet customer service at 1- 800-222-1020. GM's number for this recall is 14302.

General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Corvette vehicles manufactured November 20, 2013, to March 25, 2014, and equipped with optional sport seats. The seats do not meet internal specifications for injury protection in relation to an unbelted young child.

In the event of a crash necessitating side impact air bag deployment, an unbelted young child may be at an increased risk of neck injury.

GM will notify owners, and dealers will replace the passenger's side impact air bag, free of charge. The recall is began in early August 2014. Owners should not allow small children to ride in vehicles unbelted or in the front passenger seat. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14240.

General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Corvette vehicles manufactured April 23, 2014 to April 25, 2014. In the affected vehicles, the Sensing and Diagnostic Module (SDM) may experience an internal short circuit, resulting in the deactivation of the air bags and seat belt pretensioners.

If the SDM short circuits, the air bags may not deploy and the seat belt pretensioners may not activate in the event of a crash, increasing the risk of occupant injury.

GM will notify owners, and dealers will replace the Sensing and Diagnostic Module (SDM), free of charge. The recall began on August 1, 2014. Owners may contact General Motors customer service at 1-800-222-1020. GM's number for this recall is 14219.