2015 CHEVROLET SILVERADO HD

FUEL SYSTEM, DIESEL

General Motors LLC (GM) 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.

Risk: A fuel leak in the presence of an ignition source may result in a vehicle fire.

ELECTRICAL SYSTEM:SOFTWARE

General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra, and 2015 Chevrolet Tahoe and Suburban vehicles equipped with a base radio and an internal amplifier. The radios in the affected vehicles may become inoperative, and as a result, there would be no audible chime to notify the driver if the door is opened with the key in the ignition or no audible seat belt warning indicating the seat belts were not buckled. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 114, "Theft Protection and Rollaway Prevention," and 208, "Occupant Crash Protection."

Risk: Without an audible indicator, the driver may not be aware that the driver's door is open while the key is in the ignition, increasing the risk of a vehicle rollaway. Additionally, there would be no reminder that the driver's or front seat passenger's seat belt is not buckled, which could increase the risk of injury in a crash.

ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Silverado HD vehicles manufactured January 8, 2014, through February 27, 2014, and 2015 GMC Sierra HD vehicles manufactured January 9, 2014, through February 14, 2014, and equipped with a 220 Amp Generator (RPO KW5). In the affected vehicles, the retention clips that attach the fuse block to the vehicle body can become loose allowing the fuse block to move out of position. If this occurs, exposed conductors in the fuse block may contact the mounting studs or other metallic components, causing a short to ground event.

Risk: This could result in an arcing condition, and combustible materials located nearby could ignite and result in an engine compartment fire.

STEERING:HYDRAULIC POWER ASSIST SYSTEM

General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Silverado 2500 and 3500 HD vehicles manufactured October 1, 2013 to September 20, 2014, and 2015 GMC Sierra 2500 and 3500 HD vehicles manufactured September 30, 2013, to September 20, 2014. The power steering hose clamp may disconnect from the power steering pump or gear, causing a loss of power steering fluid.

Risk: A loss of power steering fluid could result in a loss of power steering assist and power brake assist, increasing the risk of a crash.