# Service bulletin 19PBC

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: 10163418
- Published by NHTSA: 2019\-08\-02
- Manufacturer's number: 19PBC
- Manufacturer's date: 2019\-07\-19
- NHTSA component: EXTERIOR LIGHTING; ELECTRICAL SYSTEM

## NHTSA's summary

Safety Recall: Vehicles fail to confirm with FMVSS/CMVSS No 108 Table 1\-a requirements which requires 2 red stop lamps. Vehicles were equipped with additional amber stop lamps which may illuminate when the brake is applied, and may confuse other drivers. Resolution is to remove the amber stop lamps and associated wiring.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163418-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163418-9999.pdf)

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

## Components

Electrical system, Lighting

## Vehicles listed

- 1995 to 2016 PETERBILT 320
- 2017 to 2020 PETERBILT 520

## Recalls for the same vehicles and component

- [19V452000](/recalls/nhtsa/19V452000.md), 2019-06-14: EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:TAIL LIGHTS
- [2019199](/recalls/tc/2019199.md), 2019-04-24: Electrical
- [19V282000](/recalls/nhtsa/19V282000.md), 2019-04-09: ENGINE; ELECTRICAL SYSTEM
- [2014305](/recalls/tc/2014305.md), 2014-07-22: Electrical
- [14V439000](/recalls/nhtsa/14V439000.md), 2014-07-21: ELECTRICAL SYSTEM
- [01V131000](/recalls/nhtsa/01V131000.md), 2001-04-13: ELECTRICAL SYSTEM:WIRING

## Other bulletins for the same vehicles and component

- [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.
- [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.
- [46\-016](/bulletins/11017898.md), 2025-05-06, Service campaign: ELECTRICAL SYSTEM. 4/29/2025: Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves certain functions. Software update procedures have been revised. Campaign start date is 12/05/2024. Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves certain functions. Campaign start date is 12/05/2024.
- [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.
- [R2304](/bulletins/10240236.md), 2023-08-03, Service bulletin: ELECTRICAL SYSTEM. Quality and Volume Validation vehicles built for the 520 VMUX program between July 2019 and December 2020 are eligible for a retrofit of the digital display to a production intent unit that features updated base software, secured hardware, and the ability to be updated with software released after February 2021.
- [34\-074](/bulletins/10191380.md), 2021-05-03, Service bulletin: ELECTRICAL SYSTEM. The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture. The presence of the wire could result in a false fault code.
- [32\-015](/bulletins/10177021.md), 2020-07-03, Service bulletin: ELECTRICAL SYSTEM. Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
- [34\-087](/bulletins/10177016.md), 2020-07-03, Service bulletin: ELECTRICAL SYSTEM. Non\-Safety Campaign: Peterbilt has determined that certain RHSU model 520 trucks, built from 7/16/2018 to 3/20/2020, may have been equipped with a Main Cab Harness that enables the Door Alarm to sound when it should be disabled. Model 520 vehicles with this configuration should have the door alarm disabled when the passenger door is open and the vehicle is in drive mode.
- [01\-076](/bulletins/10174760.md), 2020-05-06, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Fix as Fail: Model 520 trucks manufactured between 6/20/2017 and 8/10/2018 with LH and RH Steer may have a Recirculation Air Blend Door that does not work properly. Resolution is to remove the unneeded circuit and seal the wires.
- [34\-085](/bulletins/10173212.md), 2020-04-03, Service bulletin: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Information Only – Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.

JSON: [/v1/bulletins/10163418](/v1/bulletins/10163418)

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