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Service campaign 26PACD

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 id11037543
Published by NHTSA2026-09-29
Manufacturer's number26PACD
Manufacturer's date2026-09-19
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

"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."

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

Vehicles listed
KENWORTH T2802027
KENWORTH T3802027
KENWORTH T4802027
KENWORTH T6802027
KENWORTH T8802027
KENWORTH W9902027
PETERBILT 5362027
PETERBILT 5372027
PETERBILT 5482027
PETERBILT 5672027
PETERBILT 5792027
PETERBILT 5892027

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
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
S0242026-09-29. Service bulletin. "(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."
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."
32-0092026-07-21. Service bulletin. The battery care, maintenance, and charging guidelines have been updated to include Absorbent Glass Mat (AGM) battery information. Dealers are responsible for maintaining inventory trucks and on-shelf batteries.
31-0022026-07-21. Service bulletin. An installation guide is now available for temporary solar battery maintainers used on vehicles in dealer inventory. Using solar battery maintainers according to the attached guide can reduce instances of dead or undercharged batteries in stock vehicles at dealerships. Use of solar maintainers is considered a best practice for battery maintenance.