# Service bulletin 46\-011

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: 11010890
- Published by NHTSA: 2024\-12\-02
- Manufacturer's number: 46\-011
- Manufacturer's date: 2024\-11\-27
- Campaign id or software version: 46\-011
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN

## NHTSA's summary

Some 579EV and 520EV BEV trucks may have loose or improperly torqued ESS gland nuts. This may cause an intermittent warning light on the dash display.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010890-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010890-9999.pdf)

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

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2021 to 2025 PETERBILT 520
- 2021 to 2025 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
- [24V190000](/recalls/nhtsa/24V190000.md), 2024-03-20: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
- [2024161](/recalls/tc/2024161.md), 2024-03-08: Powertrain
- [2023343](/recalls/tc/2023343.md), 2023-06-13: Electrical
- [23V423000](/recalls/nhtsa/23V423000.md), 2023-06-13: ELECTRICAL SYSTEM
- [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
- [2021069](/recalls/tc/2021069.md), 2021-02-17: Powertrain

## Other bulletins for the same vehicles and component

- [E328](/bulletins/11037480.md), 2026-09-23, Service campaign: ELECTRICAL SYSTEM. Certain chassis with CARB 2024 compliant MX\-13 engines must have the PEU wiring harnesses updated. The original wiring and fuse are insufficient for electrical system operation and protection.
- [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.
- [P003](/bulletins/11036340.md), 2026-08-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE. The PB chassis list has been updated to include 1 chassis. The total chassis count is now 9.
- [P003](/bulletins/11036295.md), 2026-08-20, Service bulletin: ENGINE; ELECTRICAL SYSTEM. "For Peterbilt: Chassis list has been updated to include 1 chassis. The total chassis count is now 7. For Kenworth: Chassis list has been updated to include 1 chassis. The total chassis count is now 8."
- [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.
- [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."
- [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.

JSON: [/v1/bulletins/11010890](/v1/bulletins/11010890)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2046-011&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11010890&vehicle=Service%20bulletin%2046-011)