# Service bulletin 32\-009

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: 11035110
- Published by NHTSA: 2026\-07\-21
- Manufacturer's number: 32\-009
- Manufacturer's date: 2026\-07\-10
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

The battery care, maintenance, and charging guidelines have been updated to include Absorbent Glass Mat \(AGM\) battery information. Dealers are responsible for maintaining inventory trucks and on\-shelf batteries.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035110-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035110-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2024 to 2027 KENWORTH W990
- 2025 to 2027 PETERBILT 589

## Recalls for the same vehicles and component

- [2026405](/recalls/tc/2026405.md), 2026-08-21: Electrical
- [2026367](/recalls/tc/2026367.md), 2026-07-27: Electrical
- [26V485000](/recalls/nhtsa/26V485000.md), 2026-07-27: ELECTRICAL SYSTEM:WIRING:POWER DISTRIBUTION MODULE/IPDM
- [25V569000](/recalls/nhtsa/25V569000.md), 2025-09-02: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [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

- [26PACD](/bulletins/11037543.md), 2026-09-29, Service campaign: ELECTRICAL SYSTEM. "The PKC Group power distribution center \(PDC\) in certain vehicles may be contaminated with oil, which could result in a loss of power to the engine, antilock brake system, exterior lighting, windshield wipers, and/or defrost system. This issue may also result in non\-compliance with multiple Federal Motor Vehicle Safety Standard \(FMVSS\) and Canadian Motor Vehicle Safety Standard \(CMVSS\) regulations, such as FMVSS/CMVSS 103 \(windshield defrosting and defogging systems\), 104 \(windshield wiping and washing systems\), and 108 \(lamps, reflective devices, and associated equipment\). PDC serial numbers of suspect trucks in the field will be inspected against the 26PACD Suspect Serial Number List in the Links section. If a match is identified, the PDC will be replaced."
- [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.
- [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.
- [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.
- [31\-002](/bulletins/11035109.md), 2026-07-21, Service bulletin: ELECTRICAL SYSTEM. An installation guide is now available for temporary solar battery maintainers used on vehicles in dealer inventory. Using solar battery maintainers according to the attached guide can reduce instances of dead or undercharged batteries in stock vehicles at dealerships. Use of solar maintainers is considered a best practice for battery maintenance.
- [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.
- [34\-101](/bulletins/11033375.md), 2026-06-03, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Certain Peterbilt Model 589 chassis equipped with LED headlamps may need a relay and fuses for the integrated heaters to be functional.
- [02\-177](/bulletins/11033351.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM. Troubleshooting procedures for 2.1m cab power windows are now available.

JSON: [/v1/bulletins/11035110](/v1/bulletins/11035110)

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