# Service campaign 46\-025

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: 11029641
- Published by NHTSA: 2026\-03\-05
- Manufacturer's number: 46\-025
- Manufacturer's date: 2026\-02\-26
- Campaign id or software version: 46\-025
- NHTSA component: ELECTRICAL SYSTEM
- Manufacturer's system: Software

## NHTSA's summary

Software updates are available for certain Peterbilt Model 220 BEVs that experience battery pack cell imbalances.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029641-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029641-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2023 to 2025 KENWORTH K270
- 2023 to 2025 KENWORTH K370
- 2022 PETERBILT 220
- 2024 to 2025 PETERBILT 220

## Recalls for the same vehicles and component

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

## 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.
- [26PACB](/bulletins/11035098.md), 2026-07-20, Service campaign: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. "\(KW\): 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."
- [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.
- [25PBD/25KWD](/bulletins/11027066.md), 2026-01-06, Service bulletin: ELECTRICAL SYSTEM. A photo of the two ring terminals and a caution statement have been added to the Dana Cradle Harness Removal and Installation Procedure. Safety Recall Parts and procedures are now available. Interim flagging has been removed from chassis in the PACCAR Registration and Warranty System and will now display the safety recall number. Refer to Bulletin 99\-048 for details. The chassis affected population has increased.
- [46\-024](/bulletins/11027062.md), 2026-01-06, Service bulletin: ELECTRICAL SYSTEM. Certain Battery Electric Vehicles that are subject to California Air Resources Board \(CARB\) regulations have Vehicle Emissions Control Information \(VECI\) labels that are missing the CARB Enhanced EV and FCEV Statement.
- [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.
- [25PBD](/bulletins/11017900.md), 2025-05-06, Service bulletin: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Safety Recall – Interim Notification Certain Medium Duty Battery Electric Vehicles \(MD BEV\) may experience intermittent continuity in one or more terminal pins of the C40 connector on the cradle harness. Intermittent connections in the C40 connector may result in a loss of propulsion, which may increase the risk of a crash. This bulletin will be updated once parts and procedures are available.
- [98\-030](/bulletins/11008569.md), 2024-10-05, Service campaign: ELECTRICAL SYSTEM. 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.
- [46\-001 HVAC Update](/bulletins/11007667.md), 2024-09-10, Other: ELECTRICAL SYSTEM. BEV Phase 2 tools have been added to the BEV required tools lists.
- [46\-066](/bulletins/11003067.md), 2024-07-03, Service bulletin: ELECTRICAL SYSTEM. On certain Peterbilt Model 220EV Battery Electric Vehicles \(BEVs\), timer 2 for the HED® Telematic device may malfunction inside the cab harness. Due to this malfunction, the fuse for the telematic device is being triggered. If fuse has blown, the timer may malfunction.

JSON: [/v1/bulletins/11029641](/v1/bulletins/11029641)

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