General Motors is recalling 843 model year 2014 Chevrolet Silverado trucks manufactured June 1, 2013, through June 30, 2013; and model year 2014 GMC Sierra trucks manufactured June 4, 2013, through June 30, 2013.

Welding on the passenger airbag inflater may fracture when the airbag is deployed, allowing some gas to vent behind the instrument panel, instead of into the air bag. As a result the airbag may not fully inflate, increasing the risk of injury.

GM will notify owners and dealers will replace the passenger air bag module, free of charge. The recall was expected to begin by July 30, 2013.

Owners may contact Chevrolet at 1-866-694-6546 and GMC at 1-866-996-9463. GM's recall number is 13230.