# Service campaign 26PACB

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 campaign
- NHTSA id: 11035098
- Published by NHTSA: 2026\-07\-20
- Manufacturer's number: 26PACB
- Manufacturer's date: 2026\-07\-02
- NHTSA component: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

## NHTSA's summary

"\(KW\): Certain Kenworth K270 and K370 Battery Electric Vehicle \(BEV\) chassis equipped with certain DANA cradle harnesses may intermittently lose electrical continuity at one or more C40 connector pins. This can occur without warning and cause loss of propulsion, increasing the risk of a crash. Certified BEV technicians will inspect the C40 connector and replace the cradle harness, if necessary. This safety recall defect is identical to 25KWD and applies to certain Canadian chassis added on 07/02/2026. \(PB\): Certain Peterbilt Model 220 Battery Electric Vehicle \(BEV\) chassis equipped with certain DANA cradle harnesses may intermittently lose electrical continuity at one or more C40 connector pins. This can occur without warning and cause loss of propulsion, increasing the risk of a crash. Certified BEV technicians will inspect the C40 connector and replace the cradle harness, if necessary. This safety recall defect is identical to 25PBD and applies to certain Canadian chassis added on 07/02/2026."

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035098-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035098-9999.pdf)

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

## Components

Electrical system, Fuel system

## Vehicles listed

- 2024 KENWORTH K270
- 2026 KENWORTH K270
- 2024 KENWORTH K370
- 2026 KENWORTH K370
- 2024 PETERBILT 220
- 2026 PETERBILT 220
- 2022 PETERBILT 520
- 2025 PETERBILT 520

## Recalls for the same vehicles and component

- [25V182000](/recalls/nhtsa/25V182000.md), 2025-03-24: ELECTRICAL SYSTEM:PROPULSION SYSTEM
- [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

## Other bulletins for the same vehicles and component

- [46\-025](/bulletins/11037545.md), 2026-09-29, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. The bulletin has been updated to include vehicles equipped with 141 kWh batteries.
- [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.
- [25KWD 25PBD](/bulletins/11035096.md), 2026-07-20, Service campaign: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Additional US chassis have been added, along with additional Canadian chassis under identical safety recall 26PACB.
- [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."
- [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.
- [46\-022](/bulletins/11029642.md), 2026-03-05, Service campaign: ELECTRICAL SYSTEM. Certain Model 220, K270, and K370 BEV chassis are broadcasting incorrect VINs to PACCAR Solutions.
- [46\-025](/bulletins/11029641.md), 2026-03-05, Service campaign: ELECTRICAL SYSTEM. Software updates are available for certain Peterbilt Model 220 BEVs that experience battery pack cell imbalances.

JSON: [/v1/bulletins/11035098](/v1/bulletins/11035098)

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