2024 PETERBILT 579

EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE

PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert to a raised position, or oscillate up and down when the signal warning lights are activated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."

Risk: Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.

ELECTRICAL SYSTEM:PROPULSION SYSTEM

PACCAR Incorporated (PACCAR) is recalling certain 2022-2025 Peterbilt 520, 579, and 2021-2025 Kenworth T680 trucks. The high voltage (HV) contactors may open, causing a sudden loss of high voltage and a loss of drive power.

Risk: A loss of drive power increases the risk of a crash.

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning.

Risk: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.

POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 365, 367, 389, 535, 536, 537, 548, 567, 579, and 2021-2025 Kenworth T180, T280, T380, T480, T680, T880 and W990 trucks. The right-hand gear shifter stalk connectors may have been improperly crimped, resulting in a loss of communication.

Risk: A loss of communication between the gear shifter and the transmission may result in the vehicle becoming disabled after coming to a stop, increasing the risk of a crash.

STEERING

PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.

Risk: A loss of steering control increases the risk of a crash.

FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 579 and 567 trucks. The U-bolts that attach the air tank to the chassis may contact the fuel tank and over time, wear a hole in the tank.

Risk: A punctured fuel tank can leak fuel, increasing the risk of a fire.

TIRES:TREAD/BELT

The contact filed the complaint on behalf of a fleet driver. The contact owns a 2024 Peterbilt Conventional 579, equipped with Goodyear Tires, Tire Line: Endurance LHS, Tire Size: 295/75/R22.5, DOT Number:1MC37C8BW3223. The contact stated that while the fleet driver was driving at an undisclosed speed, there was an abnormal flapping sound coming from the tires. In addition, the contact stated that the vehicle was shaking and vibrating abnormally. The vehicle was driven to the shoulder of the road. The driver inspected the vehicle and noticed that the front passenger's side tire was cracked, and the outer tire tread had detached. The TA Truck Stop Service was contacted, and the tire was replaced. The Goodyear dealer where the tires were purchased was made aware of the failure. The manufacturer was made aware of the failure. The vehicle failure mileage was approximately 276,000. The tire failure mileage was 40,004.