Service bulletins for the 2021 Mack MD
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.
112 on file from NHTSA, as of 2026-10-19.
About P246F on the 2021 Mack MD: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P246F are shown. Show all
| KC-328 | 2021-10-01. Service bulletin. ELECTRICAL SYSTEM. Diagnostic Trouble Codes (DTC) P208064, P208464, P242B64 and P246F64 Lighting The Malfunction Indicator Lamp (MIL) - US17+OBD19 And Newer Emissions, Model Years 2020 and Newer |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.