2023 KENWORTH T480

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

PACCAR Incorporated (PACCAR) is recalling certain 2023-2024 Peterbilt 535, 536, 537, 548, 2023-2024 Kenworth T280, T380, T480, and 2024 Kenworth T180 trucks. The throttle pedal assembly may contain an oversized magnet carrier, slowing the responsiveness or causing the pedal to stick.

Risk: A pedal that sticks 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.

SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK

PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2008-2024 Kenworth T800, 2009-2020 Kenworth T370, 2013-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, 2021-2023 Kenworth T800B, and 2009-2019 Kenworth W900 vehicles. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Risk: Insufficient air volume can reduce braking performance and increase 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.

VISIBILITY:REARVIEW MIRRORS/DEVICES

PACCAR Incorporated (PACCAR) is recalling certain 2022-2024 Peterbilt 535, 536, 537, 548, and Kenworth T180, T280, T380, T480 trucks. The glass lock ring on the cab mirror assembly may not be fully seated, allowing the mirror glass to detach.

Risk: A detached mirror glass can reduce driver visibility, increasing the risk of a crash.

FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

PACCAR Incorporated (PACCAR) is recalling certain 2023-2024 Kenworth T280, T380, T480, Peterbilt 536, 537, and 548 trucks. The remote Stage 2 fuel filter hoses may have been damaged during production, allowing the hoses to leak or disconnect.

Risk: A disconnected hose will result in an engine stall, increasing the risk of a crash. Also, a fuel leak in the presence of an ignition source increases the risk of a fire.

POWER TRAIN:DRIVELINE

PACCAR Incorportated (PACCAR) is recalling certain 2023-2024 Peterbilt 536, 537, 548, 2023-2024 Kenworth T280, T480, and 2024 Kenworth T380 vehicles. The adhesive thread-lock may not have been applied to the four flange mounted yoke bolt threads, allowing the driveline fasteners to loosen.

Risk: Loose fasteners may allow the driveline to separate from the truck, increasing the risk of a crash.

SERVICE BRAKES, AIR

PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, T480, Peterbilt 536, 537, and 548 vehicles. When the brake pedal is fully applied and then released rapidly, the pedal plunger that connects the brake pedal to the brake valve may become disconnected, causing the service brakes to fail.

Risk: Service brake failure can increase the risk of a crash.

SERVICE BRAKES, AIR

PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536, 2024 Peterbilt 537, and 2020-2024 Kenworth T480 trucks. The timing of the trailer brake release may be delayed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Risk: A delay in the trailer brake release can create instability to the trailer and increase the risk of a crash.

ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

PACCAR Incorporated (PACCAR) is recalling certain 2023 Peterbilt 220, 389, 520, 536, 537, 348, 367, 567, 548, 579, and 2023 Kenworth T680, K270, T440, T880, W990, K370, T280, T380, T480, T800, and W900 vehicles. The engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stall.

Risk: An unexpected engine stall can increase the risk of a crash.