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Service bulletin CSR 506

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 id10187980
Published by NHTSA2021-03-03
Manufacturer's numberCSR 506
Manufacturer's date2021-02-23
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Altec has been notified of a recall campaign by Daimler Trucks North America, LLC (DTNA). DTNA, on behalf of its Freightliner Trucks Division, has decided that a defect that relates to motor vehicle safety exists on specific model year 2018-2021 Freightliner 108SD, 114SD, and Business Class M2 vehicles manufactured May 24, 2017 through August 26, 2020 and equipped with a Detroit Diesel DD8 engine. On certain vehicles, the engine harness may contact and chafe at various locations around the air compressor and the frame rail. If the wires are damaged and short, under certain circumstances, the engine may stall without any prior warning, with no ability to restart, which may increase the risk of a crash. Engine harnesses will be inspected for damage, adequate clearance, and repaired as required. Owners of affected units - Please contact an authorized DTNA dealer to arrange to have the recall performed and to ensure that parts are available at the dealership. Instructions on how to request this service are included in the attached letter from DTNA.

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
ALTEC AERIAL DEVICE2020
ALTEC DIGGER DERRICK2020

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