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.

Consequence: 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.

Remedy: 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.

NHTSA campaign 17V437000

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.

Consequence: 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.

Remedy: 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.

NHTSA campaign 16V651000

General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Corvette vehicles manufactured September 26, 2014, to October 2, 2014. In the affected vehicles the toe link outer ball joint on the rear suspension may not have been properly tightened during the assembly process. The Toe link may loosen with the vehicle use and eventually separate.

Consequence: A toe link separation can result in a reduction in vehicle stability and steering control, increasing the risk of a vehicle crash.

Remedy: GM will notify owners, and dealers will inspect and replace any damaged parts, free of charge. The recall began February 23, 2015. Owners may contact GM customer service at 1-800-222-1020 (Chevrolet). GM's number for this recall is 14857.

NHTSA campaign 15V031000

General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Corvette vehicles manufactured August 20, 2014, to August 27, 2014. In the event of a driver frontal air bag deployment, the driver air bag module back plate may fracture, allowing the driver air bag to separate from the steering wheel.

Consequence: An air bag that separates from the steering wheel may increase the risk of injury to the driver in the event of a crash.

Remedy: GM will notify owners, and dealers will replace the driver side air bag, free of charge. The recall began on October 29, 2014. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14594.

NHTSA campaign 14V570000

General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Corvette vehicles manufactured August 20, 2014, to September 4, 2014. In the affected vehicles, only one of the rear parking brake cables may be fully seated and engaged, resulting in the parking brake only operating on one of the rear park brake drums. Without the parking brake working on both rear wheels, the vehicle may roll away if parked on a steep gradient. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 135, "Light Vehicle Brake Systems."

Consequence: If the parking brake cable isn't fully seated and engaged on both of the rear park brake drums, the vehicle may roll away if parked on a steep gradient, increasing the risk of a crash.

Remedy: GM will notify owners, and dealers will inspect and correct the park brake cable installation, as necessary, free of charge. The recall began on October 31, 2014. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14620.

NHTSA campaign 14V568000