2023 Kenworth T440 problems, complaints & recalls
Safety recalls (3)
Electrical System:software 2024-12-09 · campaign 24V915000 · 220,764 vehicles
Defect: 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.
Fix: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWL and 24PBL.
Engine And Engine Cooling:engine:engine Control Module (Ecu/Ecm) 2022-08-17 · campaign 22V631000 · 1,601 vehicles
Defect: 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.
Fix: Dealers will replace the ECM, free of charge. Owner notification letters are expected to be mailed October 16, 2022. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 22KWG and 22PBG.
Steering 2022-07-28 · campaign 22V547000 · 47,500 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T170, T270, T280, T370, T380, T440, T470, T480, T680, T800, T880, W900, W990, C500, and 2022-2023 Peterbilt 325, 330, 337, 348, 365, 367, 389, 520, 536, 537, 548, 567, and 579 vehicles. The steering gears may have been assembled incorrectly, which can cause the gears to fracture.
Risk: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
Fix: Dealers will inspect the steering gear serial numbers, and replace the steering gears as necessary, free of charge. Owner notification letters were mailed September 26, 2022. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 22PBE and 22KWE.
Service bulletins (5)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-09-11 · P001 · Service Bulletin/Repair Instructions
"kenworth: dealers should check the chassis list and sir weekly for vin changes. 2 chassis added to the chassis list. peterbilt: dealers should check the chassis list and sir weekly for vin changes. 10 chassis added to the chassis list."
Steering 2026-03-03 · 22KWE/PBE · Service Bulletin/Repair Instructions
sheppard recall order process update - the parts section has been updated with revised steps for opening a tcs365 order support – order inquiry case.
Service Brakes 2025-10-28 · 24KWD · Service Bulletin/Repair Instructions
safety recall additional chassis have been included. the chassis list has been updated. certain t370 / t440 / t470 / t480 / t660 / t680 / t800 / t880 / w900 / c500 chassis may be equipped with air tank reservoirs that have less than twelve times the combined volume of all service brake chambers whic
Engine And Engine Cooling 2022-10-18 · 45-064 · Service Bulletin/Repair Instructions
info only - paccar is introducing over-the-air (ota) software updates for engine my17 and newer chassis equipped with cummins x15, x12, isx12, isx12n, l9n, px-7, and px-9 engines the technology will leverage the existing remote diagnostic cs hardware to deliver secure software updates remotely. this
Structure 2022-07-22 · S016 · Service Bulletin/Repair Instructions
âchassis were shipped without door stop plates installed due to a supplier shortage. parts kits are now available and shipped to dealers. installation procedures and warranty information have been included. cotter pins are not included in the parts kit and will need to be locally sourced.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.