# Service bulletin 42\-061

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: 10241537
- Published by NHTSA: 2023\-09\-02
- Manufacturer's number: 42\-061
- Manufacturer's date: 2023\-08\-31
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Certain T680 NextGen chassis have a CAN terminating resistor that may become loose and rub on the cooling module, causing fin damage and possible cooling module leaks. Procedures are available to reroute and secure the resistor and harness.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241537-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241537-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2023 to 2024 KENWORTH T680

## Recalls for the same vehicles and component

- [25V569000](/recalls/nhtsa/25V569000.md), 2025-09-02: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [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
- [22V779000](/recalls/nhtsa/22V779000.md), 2022-10-17: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [32\-014](/bulletins/11037549.md), 2026-09-29, Service bulletin: ELECTRICAL SYSTEM. This bulletin, the troubleshooting procedure, and the BMS Troubleshooting Checklist have been updated to show that the Autometer tool test results can be used in place of the Midtronics tool test results for fulfilling service and warranty requirements.
- [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.
- [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.
- [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.
- [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."
- [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.

JSON: [/v1/bulletins/10241537](/v1/bulletins/10241537)

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