General Motors is recalling certain model year 2015 Chevrolet Silverado HD, and GMC Sierra HD vehicles manufactured February 11, 2014, through February 19, 2014, and equipped with diesel engines and dual fuel tanks. In the affected vehicles, the fuel pipe connections on both sides of the diesel fuel transfer pump may not be properly torqued which may result in a diesel fuel leak.A fuel leak in the presence of an ignition source may result in a vehicle fire.GM will notify owners, and dealers will tighten the fuel pipe connections to the proper torque. The recall is expected to begin on May 19, 2014. Owners may contact General Motors customer service at 1-800-222-1020 (Chevrolet), 1-800-462-8782 (GMC). General Motors' number for this recall is 14067.Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.