Service bulletins for the 2021 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.
227 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Lighting are shown. Show all
| KC-375 | 2022-02-04. Service bulletin. EXTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS. Mack Chassis - Anthem (AN) Models - Headlight Diagnostics And Replacement; Instructions For Non-Functioning Headlight Or Turn Signal In Headlight Housing |
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| KC-283 | 2022-01-06. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING. Mack Chassis - Models - Anthem (AN), Pinnacle (PI, CXU, CHU) - Headlamp Aiming Instructions; |
| SC0422 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canada Non-Compliance DRL overide |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.