# Service bulletin 28\-001

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.

- Type: Service bulletin
- NHTSA id: 10243354
- Published by NHTSA: 2023\-10\-03
- Manufacturer's number: 28\-001
- Manufacturer's date: 2023\-09\-18
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

For all Peterbilt chassis equipped with an air shifted PTO. Oil from the air shift cover of the PTO may leak into the air line, causing the EOA solenoid to become inoperative.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243354-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243354-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2015 to 2024 PETERBILT 579

## Recalls for the same vehicles and component

- [25V181000](/recalls/nhtsa/25V181000.md), 2025-03-24: ELECTRICAL SYSTEM:PROPULSION SYSTEM
- [24V915000](/recalls/nhtsa/24V915000.md), 2024-12-09: ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
- [2023343](/recalls/tc/2023343.md), 2023-06-13: Electrical
- [23V423000](/recalls/nhtsa/23V423000.md), 2023-06-13: ELECTRICAL SYSTEM
- [22V779000](/recalls/nhtsa/22V779000.md), 2022-10-17: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [21V00N000](/recalls/nhtsa/21V00N000.md), 2021-12-29: ELECTRICAL SYSTEM:WIRING
- [21V906000](/recalls/nhtsa/21V906000.md), 2021-11-19: ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, AIR
- [2020090](/recalls/tc/2020090.md), 2020-03-05: Electrical
- [20V130000](/recalls/nhtsa/20V130000.md), 2020-03-04: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
- [18V092000](/recalls/nhtsa/18V092000.md), 2018-02-02: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)

## Other bulletins for the same vehicles and component

- [01\-094](/bulletins/11037479.md), 2026-09-23, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. \[SmartAir / KIMS\] A/C systems may shut down prematurely when voltage levels drop below a certain threshold.
- [P001](/bulletins/11036294.md), 2026-08-20, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Chassis list has been updated to include 10 chassis. The total chassis count is now 101.
- [46\-029](/bulletins/11036290.md), 2026-08-20, Service bulletin: ELECTRICAL SYSTEM. When DAVIE version 26.21.2 is used to update the VECU3 to software version 3.4.46.0, the VECU3 5071 component group may display as \-\-\- after programming.
- [46\-020](/bulletins/11035203.md), 2026-07-23, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Certain unaffected chassis have been removed from the chassis population.
- [43\-089](/bulletins/11035151.md), 2026-07-22, Service bulletin: ENGINE; ELECTRICAL SYSTEM. An optional software update is expected to be available on or after 07/31/26 for chassis equipped with EPA 2024 engine model year \(EMY\) 2024\-2026 PACCAR MX\-11 and MX\-13 engines. This update provides customers with additional time to service their trucks before a DEF\-related derate occurs. The software is being offered to customers in alignment with recently updated regulatory agency guidance.
- [E324](/bulletins/11035148.md), 2026-07-22, Service bulletin: ELECTRICAL SYSTEM. The campaign expiration date has been changed to 03/01/2027.
- [46\-027](/bulletins/11033920.md), 2026-06-17, Service bulletin: ELECTRICAL SYSTEM. The currently published HD BEV Chassis with PACCAR EPowertrain Service \(Built After 1/14/2026\) de\-energizing Procedures on ServiceNet cannot be utilized for certain pre\-production Battery Electric Vehicle \(BEV\) chassis.
- [43\-080](/bulletins/11033918.md), 2026-06-17, Service bulletin: ELECTRICAL SYSTEM. "KW: A new recommended repair has been added to verify the software level and close the campaign in SIR.The repair procedure has been updated with additional note boxes for clear instructions. PB: The repair procedure has been updated with additional note boxes for clear instructions."
- [R2103](/bulletins/11033914.md), 2026-06-17, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Updated the point of contact for sourcing the MX Engine Overlay Harness Kits. This retrofit should have been completed by 5/15/2022 per the Action section of the bulletin. However, trucks still open in SIR are still eligible for the repairs.
- [R2601](/bulletins/11033387.md), 2026-06-04, Service bulletin: ELECTRICAL SYSTEM. Updated primary and/or secondary chassis modules for certain pre\-production Kenworth chassis are now available for installation.

JSON: [/v1/bulletins/10243354](/v1/bulletins/10243354)

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