Reliability & cost of ownership
Mack Md Reliability & Common Problems
How reliable is the Mack Md? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for a full reliability and repair-cost forecast.
Mack Md problems by model year
4 recall entries and 2 owner complaints on file across 2 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2025 Md | 2 | 1 | No NCAP test | Full reliability report → |
| 2023 Md | 2 | 1 | No NCAP test | Full reliability report → |
Most-complained-about components
Owner complaints filed with NHTSA against the Mack Md, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- power train2 complaints
- engine1 complaint
- fuel/propulsion system1 complaint
- service brakes1 complaint