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Service campaign FS016

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11026429
Published by NHTSA2025-12-05
Manufacturer's numberFS016
Manufacturer's date2025-11-14
Campaign id or software versionFS016
NHTSA componentPOWER TRAIN

NHTSA's summary

Campaign Certain chassis equipped with an Eaton Endurant 12-speed transmission have Mechatronic Transmission Module (MTM) rail cylinder cap screws that could become loose. This may cause the transmission not to shift and the transmission service lamp to illuminate. Repair procedure is now available.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Vehicles listed
KENWORTH T6802022, 2023
KENWORTH W9902022, 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
24V1900002024-03-20. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
20241612024-03-08. Powertrain
21V2620002021-04-13. POWER TRAIN
20210692021-02-17. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
CE0192026-07-02. Service bulletin. Multiple fuel injector part numbers have been added to this warranty policy.
CE0332026-07-02. Warranty extension. "KW & PB 14 fuel injector part numbers (seven for MX-11 and seven for MX-13 engines) have been added to this warranty policy."
CE0192026-06-25. Service bulletin. Multiple fuel injector part numbers have been added to this warranty policy.
CE0332026-06-25. Service bulletin. "KW & PB 14 fuel injector part numbers (seven for MX-11 and seven for MX-13 engines) have been added to this warranty policy."
CE0312026-06-25. Warranty extension. "KW & PB 14 fuel injector part numbers (seven for MX-11 and seven for MX-13 engines) have been added to this warranty policy."
FS0162026-02-05. Service campaign. Eaton Endurant MTM Loose Cap Screw Update The chassis list was updated to indicate T680 or T680 Next Gen. SRT codes B25-29A and B25-29B apply to all T680 chassis..
FS0152026-02-05. Service campaign. TX-12 MTM Loose Cap Screw Update The chassis list was updated to indicate T680 or T680 Next Gen. SRT codes B25-28A and B25-28B apply to T680 Next Gen chassis.
24PBE_24KWE2026-02-05. Warranty extension. 24PBE_24KWE RH Shift Stalk Update Warranty section has been updated with revised verbiage for picture requirements.
24PBE/KWE2026-01-06. Warranty extension. 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 vehicle may result in the vehicle being disabled after it comes to a stop, thereby increasing the risk of crash or injury. A warning will appear on the dash display when communication is lost, including transmission or engine warnings, “!” next to DNR/DNRP indicator, “-“ in the DNR/DNRP indicator, and/or chimes, depending upon whether you are operating a diesel/gas or battery electric vehicle.
FS0152025-12-05. Service bulletin. Certain chassis equipped with a PACCAR TX-12 transmission have Mechatronic Transmission Module (MTM) rail cylinder cap screws that could become loose. This may cause the transmission not to shift and the transmission service lamp to illuminate.