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Service bulletin 511440

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 id10203586
Published by NHTSA2021-12-02
Manufacturer's number511440
Manufacturer's date2021-11-16
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Daimler Trucks North America LLC (DTNA), on behalf of its wholly owned subsidiary, Freightliner Custom Chassis Corporation, is initiating Field Service Campaign SF637A to modify specific model year 2021 Freightliner Custom Chassis manufactured September 17, 2019 through April 7, 2021. In a low voltage condition, the IP display may not come on when turning on ignition leaving drivers without a functioning instrument panel. This would only occur at startup and the instrument panel would function again if the key is cycled with normal voltage. The software will be updated to resolve the issue.

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
COACHMEN SPORTSCOACH2021 to 2022
FOREST RIVER BERKSHIRE2021

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