The worst 2026 Mack MD problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
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Recalls 1
Seat belts
- What is wrong
- Mack Trucks, Inc. (Mack) is recalling certain 2026 Mack MD vehicles. The center bench seat belt assembly may be routed incorrectly.
- Risk
- An incorrectly routed seat belt assembly may not restrain an occupant as intended, increasing the risk of injury in a crash.
- Remedy
- Dealers will inspect and replace the seat belt assembly as necessary, free of charge. Owner notification letters were mailed June 3, 2025. Owners may contact Mack's customer service at 1‑800‑866‑1177. Mack's number for this recall is SC0478.
Recall number 25V333000 · Recall details
Technical service bulletins for the 2026 Mack MD 9
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
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Questions about the 2026 Mack MD
Is the 2026 Mack MD reliable?
Owners have filed 0 complaints about the 2026 Mack MD.
What is the most common problem with the 2026 Mack MD?
There are not enough complaints to tell.
How many recalls does the 2026 Mack MD have?
1 recall, covering seat belts.
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