WenmarOpen by Wenmar Pro

Service bulletin 511452

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10209409
Published by NHTSA2022-05-10
Manufacturer's number511452
Manufacturer's date2022-04-07
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

FCCC X-Line chassis, equipped with a certain rear mounted Power Distribution Module (PDM), may experience cracked internal solder joints, which after a period of vehicle use may lead to intermittent open circuits, in which the rear marker lights, brake lights, or left turn signal lights may not function. Brake lights that do not function correctly may not notify motorists of a braking event, which may lead to an increase risk of crash. A secondary fused harness will be added which bypasses the affected suspect portion of the PDM. Repairs will be performed by Daimler Trucks North America authorized service facilities.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
FCCC XB CHASSIS2018 to 2022
FCCC XBA2019 to 2020
FCCC XBP2016 to 2021
FCCC XBR2016 to 2021
FCCC XBS2016 to 2022
FCCC XC CHASSIS2018 to 2022
FCCC XCA2017
FCCC XCL2016 to 2021
FCCC XCM2016 to 2022
FCCC XCP2016 to 2021
FCCC XCR2016 to 2022
FCCC XCS2016 to 2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.