Service bulletins for the 2022 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.
114 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Steering are shown. Show all
| S3433 202308 | 2023-09-06. Service bulletin. ELECTRICAL SYSTEM; STEERING. Service Campaign: MMD Steering Column Harness Routing |
|---|---|
| S3433 | 2023-07-06. Service bulletin. ELECTRICAL SYSTEM; STEERING. Campaign - Mack trucks has determined that certain model year 2022 Mack Medium Duty (“MMD”) vehicles, require an inspection of the steering harness routing. |
| S7646 | 2022-06-06. Service bulletin. STEERING. MMD Steering Column Bracket Hardware |
| SLM22-004 | 2022-05-06. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT; STEERING. Service Literature Published and Released in April, 2022 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.