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Service bulletin KC-426

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 id10207581
Published by NHTSA2022-02-04
Manufacturer's numberKC-426
Manufacturer's date2022-01-20
NHTSA componentEQUIPMENT; STRUCTURE:BODY:HOOD; VISIBILITY

NHTSA's summary

Mack Chassis - Anthem (AN) - Hood Mounted Mirror Repair; Mirror Covers Loose, Rattling, Vibrating

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

Body and frame, Equipment and accessories, Glass, wipers and mirrors

Vehicles listed
MACK ANTHEM (AN)2016 to 2017
MACK ANTHEM (AN)2018, 2019, 2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
20205512020-11-12. Structure
20190372019-01-25. Visual System
19V0540002019-01-24. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
18V1520002018-03-06. INTERIOR LIGHTING; VISIBILITY:WINDSHIELD WIPER/WASHER; EXTERIOR LIGHTING; ELECTRICAL SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
CBR 2575-1 2026042026-05-05. Service bulletin. CBR - Mack Chassis - Dash Panel Cracking at Mounting to BIW.
CBR 2432-2 2026012026-02-03. Service bulletin. CBR - Mack Chassis - AN And GR Models - Door Glass Shattering.
S4548 2025062025-07-01. Service campaign. Mack Trucks has determined that certain model year 2020 to 2022 Anthem trucks could experience excessive wear on the hood latch pins causing the hood to rattle during normal vehicle operation.
CBR-2432 2025012025-02-04. Service bulletin. This CBR solution provides detailed instructions for diagnosing and addressing window glass shattering issues, including replacement specifications, interference checks, fastener verification, and reinforcement tab adjustments to ensure proper installation and functionality.
CBR-2384 2024072024-08-01. Service bulletin. CBR: Mack Chassis - Day Cab Glass Breakage
CBR-2384 2024062024-07-03. Service bulletin. CBR - Mack Chassis - Day Cab Glass Breakage
CBR-2016 2024012024-02-02. Service bulletin. CBR: Frame Or Cab Lean
M-821-028 2023082023-09-06. Service bulletin. TSB: Hood Latch Assembly, Retrofit
KC-2094 Rev 32023-07-06. Service bulletin. Infotainment System - Volume Drop During A Phone Call, Phone Connected Via Bluetooth
SLM23-0052023-06-06. Service bulletin. Service Literature Published and Released in May, 2023