GMC Sierra 1500 Recalls

On certain light duty trucks equipped with 4-wheel disc brakes, the Antilock Brake System (ABS) motor contains an out-of-specification spring clip. This clip could allow the motor bearing to become misaligned. If misalignment occurs, eventually the ABS would be non-functional. The base brakes would remain fully functional, but the Dynamic Rear Proportioning (DRP) system, which optimizes front to rear brake balance, would become inoperative, increasing the likelihood of a crash.

Certain light duty pickup trucks and sport utility vehicles have a clearance between the front right-hand brake pipe and the body cross sill that could decrease to the point of allowing contact. If contact occurs and the brake pipe becomes damaged, there can be a loss of brake fluid and pressure. The brake warning lamp will be activated when the brake fluid lever reaches the indicator limit. During braking, the pedal will be lower than normal and stopping distances will be longer. If this occurs when stopping distance is limited, a crash could occur.

Certain sport utility vehicles, pickup trucks, and passenger vans fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 135, "Passenger Car Brake Systems." Some of these vehicles were produced with an out-of-specification brake hydro-boost housing relief valve bore. Consequently, the valve O-ring seal may fracture. Steering efforts may be slightly increased while braking or parking. Under certain driving conditions, a fractured seal may also require an increase in the applied brake pedal effort to achieve the same vehicle deceleration.

On these extended cab, 4-wheel drive pickup trucks, the steering gear to frame attachment bolts were not properly tightened. Over time, these bolts can loosen, allowing the steering gear to move, resulting in an unresponsive steering feel and noise to the driver. If this condition is ignored, the bolts can wear or fatigue to the point of breaking or the bolts can back out. If all the bolts break or back out, the steering gear will separate from the frame, resulting in a loss of steering control.

Certain 2-wheel drive pickup trucks fail to comply with requirements of Federal Motor Vehicle Safety Standard No. 120, "Tire Selection and Rims for Motor Vehicles other than Passenger Cars." The problem was caused by a computer error that resulted in the certification label listing tire size and inflation pressure information that differ from the tire size and the inflation pressure information for the tires on the vehicle. If the vehicle owner or someone servicing the vehicle inflates the tires according to the pressure specified on the label versus the appropriate pressure for the tires, the tires could be under-inflated or over-inflated depending on the tires mounted on the vehicle. If the tires are under-inflated, it could reduce the tread life of the tire, and the tire could degrade to a point of allowing sudden air loss. If the tires are over-inflated, it could reduce the tread life of the tire and increase susceptibility to road hazard damage. If sudden air loss or a road haz...

On certain pickup trucks and sport utility vehicles, the galvanized steel tailgate support cables that retain the tailgate in the full open (horizontal) position may corrode, weaken, and eventually fracture. If both cables fractured, the tailgate would suddenly drop and strike the top surface of the rear bumper. Anyone sitting or standing on the horizontal surface of the tailgate when both cables fractured could be injured by falling from the tailgate. On vehicles that have had the bumper removed, the tailgate may drop even lower. Additionally, if there is cargo on the tailgate the cargo may fall off if the support cables fracture.

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

General Motors, LLC (GM) is recalling certain 2022 GMC Sierra 1500 vehicles equipped with chrome front grille deflectors. The attachments that hold the front grille deflectors in place may fracture, resulting in grille detachment.

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.

General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2018-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 Crew Cab trucks. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.