# Service bulletin 34\-096

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: 10235704
- Published by NHTSA: 2023\-05\-05
- Manufacturer's number: 34\-096
- Manufacturer's date: 2023\-04\-13
- NHTSA component: SERVICE BRAKES, AIR; ELECTRICAL SYSTEM

## NHTSA's summary

Fix As Fail – All New Model 579 chassis with Bendix radar opti on may have a harness rub against the radiator that is causing possible damage.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10235704-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10235704-9999.pdf)

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

## Components

Brakes, Electrical system

## Vehicles listed

- 2019 to 2023 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
- [23V185000](/recalls/nhtsa/23V185000.md), 2023-03-20: PARKING BRAKE
- [2023007](/recalls/tc/2023007.md), 2023-01-17: Brakes
- [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
- [2021521](/recalls/tc/2021521.md), 2021-08-20: Brakes

## Other bulletins for the same vehicles and component

- [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\-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.
- [02\-177](/bulletins/11033351.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM. Troubleshooting procedures for 2.1m cab power windows are now available.
- [E326](/bulletins/11032284.md), 2026-05-06, Emissions: ENGINE; ELECTRICAL SYSTEM. EPA17\-24 MX Fuel Injector Connector \- This bulletin has been revised to include all EPA17\-24 and CARB24 PACCAR MX engines.
- [24PBE\_KWE](/bulletins/11029738.md), 2026-03-05, Service bulletin: ELECTRICAL SYSTEM. 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](/bulletins/11026415.md), 2025-12-05, Service campaign: ELECTRICAL SYSTEM; POWER TRAIN. 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](/bulletins/11019172.md), 2025-06-05, Service bulletin: ELECTRICAL SYSTEM. 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](/bulletins/11017902.md), 2025-05-06, Service bulletin: ELECTRICAL SYSTEM. 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.

JSON: [/v1/bulletins/10235704](/v1/bulletins/10235704)

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