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Service bulletin S024

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 bulletin
NHTSA id11037540
Published by NHTSA2026-09-29
Manufacturer's numberS024
Manufacturer's date2026-09-10
NHTSA componentELECTRICAL SYSTEM; SEATS

NHTSA's summary

"(KW) Parts Shortage – Due to supplier constraints, certain T680 and T880 chassis were shipped without KIMS A/C refrigerant hose assembly. Parts are now available for installation. (PB) Parts Shortage – Due to supplier constraints, certain Model 567 and 579 chassis were shipped without Peterbilt SmartAir A/C refrigerant hose assembly. Parts are now available for installation."

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

Electrical system, Seats

Vehicles listed
KENWORTH T6802027
KENWORTH T8802027
PETERBILT 5672027
PETERBILT 5792027

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

Recalls for the same vehicles and component
20264052026-08-21. Electrical
26V5440002026-08-21. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER
20263672026-07-27. Electrical
26V4850002026-07-27. ELECTRICAL SYSTEM:WIRING:POWER DISTRIBUTION MODULE/IPDM

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
26PACD2026-09-29. Service campaign. "The PKC Group power distribution center (PDC) in certain vehicles may be contaminated with oil, which could result in a loss of power to the engine, antilock brake system, exterior lighting, windshield wipers, and/or defrost system. This issue may also result in non-compliance with multiple Federal Motor Vehicle Safety Standard (FMVSS) and Canadian Motor Vehicle Safety Standard (CMVSS) regulations, such as FMVSS/CMVSS 103 (windshield defrosting and defogging systems), 104 (windshield wiping and washing systems), and 108 (lamps, reflective devices, and associated equipment). PDC serial numbers of suspect trucks in the field will be inspected against the 26PACD Suspect Serial Number List in the Links section. If a match is identified, the PDC will be replaced."
01-0942026-09-23. Service bulletin. [SmartAir / KIMS] A/C systems may shut down prematurely when voltage levels drop below a certain threshold.
P0032026-08-20. Service bulletin. "For Peterbilt: Chassis list has been updated to include 1 chassis. The total chassis count is now 7. For Kenworth: Chassis list has been updated to include 1 chassis. The total chassis count is now 8."