Service bulletin 23PBD
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 | 10240324 |
| Published by NHTSA | 2023-08-03 |
| Manufacturer's number | 23PBD |
| Manufacturer's date | 2023-07-14 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
On certain Model Year 2022 and 2023, 579 MLU trucks, built between 04/26/2021 and 07/29/2022, equipped with a PACCAR MX-13 engine and PACCAR 160-amp alternator, the alternator positive cable may chafe against the left-hand side, front spring bracket, top rearward fastener, if the fastener was installed with the head on the outside of the frame rail. Chafing of the alternator positive cable insulation may result in an increased risk of a fire.
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
| PETERBILT 579 | 2022, 2023 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 25V181000 | 2025-03-24. ELECTRICAL SYSTEM:PROPULSION SYSTEM |
|---|---|
| 24V915000 | 2024-12-09. ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE |
| 2023343 | 2023-06-13. Electrical |
| 23V423000 | 2023-06-13. ELECTRICAL SYSTEM |
| 22V779000 | 2022-10-17. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL |
| 21V00N000 | 2021-12-29. ELECTRICAL SYSTEM:WIRING |
| 21V906000 | 2021-11-19. ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, AIR |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 46-020 | 2026-07-23. Service bulletin. Certain unaffected chassis have been removed from the chassis population. |
|---|---|
| 43-080 | 2026-06-17. Service bulletin. "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." |
| R2601 | 2026-06-04. Service bulletin. Updated primary and/or secondary chassis modules for certain pre-production Kenworth chassis are now available for installation. |
| 02-177 | 2026-06-03. Service bulletin. Troubleshooting procedures for 2.1m cab power windows are now available. |
| E326 | 2026-05-06. Emissions. EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines. |
| 24PBE_KWE | 2026-03-05. Service bulletin. The Parts section has been updated to clarify that freight charges for safety recall orders should not be passed on to the end customer. |
| 24PBE | 2025-12-05. Service campaign. 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. |
| 98-030 | 2025-06-05. Service bulletin. 5/29/2025: A new Ethernet Multiplexed Architecture (EMUX) Service Tool Kit service manual (SM034-022) has been released to provide general use information. The new EMUX Service Tool Kit improves cab & chassis electrical troubleshooting efficiency, while reducing risk of component damage. 4/29/2025: The Ethernet Multiplexed Architecture (EMUX) Service Tool Kit and individual kit components are now available to order. Dealers that have received their first kit may order an additional kit. The EMUX Service Tool Kit Part number has been updated to match OEM drawings (P74-1045-001). Individual kit component part numbers can be found in the Reference Bill of Materials sheet. The new EMUX Service Tool Kit improves cab & chassis electrical troubleshooting efficiency, while reducing risk of component damage. Information Only New diagnostic tool is required to support PACCAR Ethernet Multiplexed Architecture (EMUX). The EMUX Service Tool Kit will help improve cab & chassis electrical troubleshooting efficiency, while reducing the risk of component damage. |
| 25PBC | 2025-05-06. Service bulletin. Safety Recall – Interim Notification Certain Battery Electric Vehicle (BEV) chassis equipped with certain Accelera High Voltage Interlock Loop (HVIL)circuit configurations may experience a sudden loss of high voltage power with unintended opening of electrical contactors, which may occur without warning. This can result in a loss of propulsion and may increase the risk of a crash. This bulletin will be updated once parts and procedures are available. |
| 46-016 | 2025-05-06. Service campaign. 4/29/2025: Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves certain functions. Software update procedures have been revised. Campaign start date is 12/05/2024. Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves certain functions. Campaign start date is 12/05/2024. |