GMC Sierra Denali Ultimate2014

General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra trucks manufactured January 24, 2014, to February 26, 2014, 2015 Chevrolet Suburban vehicles manufactured February 12, 2014 and Chevrolet Tahoe vehicles manufactured February 6, 2014, to February 13, 2014. In the affected vehicles, the ignition lock actuator may bind, making turning the key difficult or causing the ignition to get stuck in the "Start" position.

If stuck in the "Start" position, the ignition may suddenly snap back into the "Accessory" position, causing a loss of engine, steering, and braking power, increasing the risk of a vehicle crash. If the vehicle is in a crash, the air bags may not deploy, increasing the risk of occupant injury.

General Motors LLC (GM ) is recalling certain model year 2014 Chevrolet Silverado Light Duty Regular Cab, Double Cab, and Crew Cab 1500 series and model year 2015 Suburban and Tahoe; GMC model year 2014 Sierra Regular Cab, Double Cab, and Crew Cab 1500 Series and model year 2015 Yukon and Yukon XL vehicles equipped with a 6-Speed Automatic Transmission (feature code MYC). The subject vehicles may have a transmission oil cooler line that is not securely seated in the fitting.

If the line is not securely seated and transmission oil leaks from the fitting, the oil could contact a hot surface and cause a vehicle fire.

General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Silverado vehicles manufactured May 15, 2013, to January 29, 2014, and GMC Sierra vehicles manufactured September 19, 2013, to February 8, 2014, and equipped with both optional accessory all-weather floor mats (option RPO VAV) and optional vinyl flooring (option RPO BG9). The affected vehicles built with the vinyl flooring option do not have the retention features necessary to properly secure the floor mat on the driver's side.

The floor mat could shift such that it could interfere with the accelerator pedal, preventing its return to an idle position, which could result in unintended vehicle speeds, increasing the risk of a crash.

General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra vehicles, and model year 2015 GMC Yukon and Chevrolet Suburban and Tahoe vehicles. In the affected vehicles, an electrical signal short may cause the transfer case to shift to neutral without the driver's input.

If the transfer case switches to neutral while the vehicle is parked and the parking brake is not in use, the vehicle may roll away increasing the risk of injury to bystanders. If the transfer case switches to neutral while the vehicle is being driven, the vehicle would lose drive power, increasing the risk of a crash.

General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Silverado vehicles manufactured May 23, 2013, through March 25, 2014, 2014 GMC Sierra vehicles manufactured May 25, 2013, through March 31, 2014, and 2015 Chevrolet Tahoe vehicles manufactured January 29, 2014, through March 27, 2014. In the affected vehicles, the tie rod threaded attachment may not be properly tightened to the steering gear rack.

An improperly tightened tie rod attachment may allow the tie rod to separate from the steering rack, resulting in a loss of steering, increasing the risk of a vehicle crash.

General Motors (GM) is recalling certain model year 2014 Chevrolet Silverado and GMC Sierra 1500 vehicles manufactured August 1, 2013, through September 10, 2013, and equipped with manual reclining seatbacks. In the affected vehicles, either of the front seatbacks may have play. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard No. 202a, "Head Restraints."

If the vehicle is struck from behind, the head restraint may not properly protect occupants, increasing the risk of injury.

General Motors is recalling certain 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 inflator may fracture when the airbag is deployed, allowing some gas from the air bag inflator to vent behind the instrument panel, instead of into the air bag.

As a result the air bag may not fully inflate, increasing the risk of injury.

General Motors LLC (GM) is recalling certain software intended for 2015 vehicles that was installed by service centers into model year 2014 Chevrolet Silverados and GMC Sierras equipped with Allison A1000 transmissions. The incorrect software may cause the transmission indicator not to display that gear position "1" has been selected. As such, this vehicle does not conform to Federal Motor Vehicle Safety Standard (FMVSS) number 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect."

The transmission position indicator may not show that the transmission is in first gear (1) and not drive (D). If the drivers pulls into traffic, the vehicle's speed would be limited, resulting in an increased risk of a crash.