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Service bulletin S7646

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 id10213530
Published by NHTSA2022-06-06
Manufacturer's numberS7646
Manufacturer's date2022-05-18
NHTSA componentSTEERING

NHTSA's summary

MMD Steering Column Bracket Hardware

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

Steering

Vehicles listed
MACK MD2021, 2022, 2023

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

Other bulletins for the same vehicles and component
S3433 2023082023-09-06. Service bulletin. Service Campaign: MMD Steering Column Harness Routing
S34332023-07-06. Service bulletin. Campaign - Mack trucks has determined that certain model year 2022 Mack Medium Duty (“MMD”) vehicles, require an inspection of the steering harness routing.
SLM22-0042022-05-06. Service bulletin. Service Literature Published and Released in April, 2022