Service bulletins for the 2025 Kenworth T380
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
36 on file from NHTSA, as of 2026-10-19.
By type
By component
| 24KWJ | 2025-08-05. Service bulletin. SUSPENSION; POWER TRAIN. Parts and repair procedures are now available. Certain Kenworth model T380 and T480 chassis equipped with a Meritor 10-16K or 18-23K Front Steer Drive Axle have been identified as possibly having insufficient wheel bearing grease. Insufficient lubrication in the wheel bearing may cause the wheel hub to overheat and become damaged, which may increase the risk of a thermal event. The driver may observe noise, excessive steering play, and/or smoke from the front wheel. |
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| R2306 - KW | 2025-07-02. Service bulletin. ENGINE. EMUX retrofit procedures updated to make it clear that the VECU3 must have software updated and vehicle mileage confirmed correct before updating the Digital Display. Parts and Procedure section also updated to include the Vehicle Emissions Control Information label ordering and installation instructions. This label is required for all chassis involved in R2306. Included additional reference to Cummins bulletin C7014 in the procedure section for ordering emissions labels. |
| 25KWB | 2025-04-04. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Safety Recall Updated software and repair procedures are now available. The Exterior Lighting Switch (ELS) in certain T180/T280/T380/T480 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with FMVSS/CMVSS 101 and 108. Affected chassis must have the Vehicle Software updated. |
| T020 - KW | 2025-04-04. Service bulletin. ELECTRICAL SYSTEM. T180/T280/T380/T480 PACCAR TX-8 Transmission Software Update for Wheel Speed Sensor Fix-As-Fail Certain T180 / T280 / T380 / T480 chassis equipped with a PACCAR TX-8 transmission received transmission software with an incorrect software variable. This software issue may cause Wheel Speed Sensor DTC 521215-2 to set, the Transmission Dash Light to Illuminate, and restricted shifting . A software update is now available to fix the issue. |
| 25KWB | 2025-03-04. Other. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. "Safety Recall – Interim Notification The Exterior Lighting Switch (ELS) in certain T180/T280/T380/T480 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with FMVSS/CMVSS 101 and 108. This bulletin will be updated when software and programming procedures are available." |
| 24KWJ | 2025-01-07. Service bulletin. STEERING. Meritor Front Steer Drive Axle Hub Lubrication Interim Safety Recall Certain Kenworth model T380 and T480 chassis equipped with a Meritor 10-16K or 18-23K Front Steer Drive Axle have been identified as possibly having insufficient wheel bearing grease. Insufficient lubrication in the wheel bearing may cause the wheel hub to overheat and become damaged, which may increase the risk of fire. The driver may observe noise, excessive steering play, and/or smoke from the front wheel. At this time, parts are not available to complete the necessary repairs. This bulletin will be updated when parts become available. 12/12/2024 |
| 24KWF | 2024-08-02. Service bulletin. STEERING. SAFETY RECALL Repair parts and procedures are now available. Certain Kenworth vehicles from model year 2025 may contain steering gear(s) with a sector shaft that may not meet hardness requirements for the gear teeth due to improper heat-treating during assembly. Sector shaft gear teeth with lower than required hardness may prematurely wear, crack, or fracture. A fractured gear tooth may interfere with the gear mechanism leading to binding which in turn may increase the likelihood of a crash. |
| 98-026 | 2024-06-04. Service bulletin. POWER TRAIN. New tools are required to support PACCAR TX-8 / ZF transmissions. Part numbers E0l-1012 (Adapter, Jack TX-8), E0l-1014 (Front Seal Installer), and E0l-1015 (Rear Seal Installer) are currently available to order |
| 24KWF | 2024-05-04. Service bulletin. STEERING. Certain Kenworth vehicles from model year 2025 may contain steering gear(s) with a sector shaft that may not meet hardness requirements for the gear teeth due to improper heat treating during assembly. Sector shaft gear teeth with lower than required hardness may prematurely wear, crack, or fracture. A fractured gear tooth may interfere with the gear mechanism leading to binding which in turn may increase the likelihood of a crash. This bulletin will be updated when repair parts and procedures are available. |
| 24KWE | 2024-04-03. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Safety Recall – INTERIM NOTIFICATION Parts are not currently available for this safety recall. This bulletin will be updated once repair parts are available. The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right-hand shift stalk and the transmission may result in the vehicle becoming disabled after it comes to a stop thereby increasing the risk of crash or injury. A transmission fault will appear on the dash display if communication is lost. |
| 24KWC | 2024-03-04. Service bulletin. STEERING. Safety Recall Inspection procedures are available. Steering gear serial numbers must be inspected to determine suspect gears. Certain steering gears may have been assembled incorrectly, causing the gear to fracture. This can cause a loss of steering control, increasing the risk of a crash. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.