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Service bulletins for the 2020 Mack Anthem

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.

269 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with type: Emissions are shown. Show all

Bulletins, newest first
M0039 0320262026-04-02. Emissions. ENGINE. Emissions - EC0039 MST21 Failure to Detect P20EE - AN, CHU.
M0311 2024092024-10-04. Emissions. ENGINE. Emission Recall: EC0033-M0311 SCR Recall
M0304 2024092024-10-04. Emissions. ENGINE. Emission Recall: EC0033-M0304 SCR Recall

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.