2023 Mack MD recalls and problems

The 2023 Mack MD has 2 safety recalls and 1 owner complaint filed with NHTSA. Recall repairs are free at any Mack dealer.

Recalls
2
Complaints
1
Crashes / fires
0 / 0
Injuries / deaths
0 / 0

Recalls may cover only some 2023 Mack MD vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.

2023 Mack MD recalls

Recall 25V-666: Seat Belts

Reported Oct 6, 2025 · 15,841 vehicles affected · Mack Trucks, Inc.

Problem: Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Mack MD, 2019-2025 Anthem, Granite, 2024 MD Electric, and 2025 Pinnacle trucks equipped with a passenger bench seat. The seat belt anchorage bracket may be improperly welded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt Assembly Anchorages."

Risk: An improperly welded seat belt anchorage bracket can detach during a crash, increasing the risk of injury.

Fix: Dealers will install a reinforcement plate, free of charge. Owner letters were mailed January 21, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0485. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning October 13, 2025.

Recall 22V-606: Engine and Engine Cooling

Reported Aug 9, 2022 · 150 vehicles affected · Mack Trucks, Inc.

Problem: Mack Trucks, Inc. (Mack) is recalling certain 2023 MD6/7 trucks. The engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down.

Risk: An unexpected engine shut down can increase the risk of a crash.

Fix: Cummins will replace the ECM, free of charge. Owner notification letters were mailed on September 27, 2022. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0438.

2023 Mack MD problems reported by owners

Problem areaReports
Power Train1
Fuel/Propulsion System1
Engine1

Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.

Recent 2023 Mack MD complaints

Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.

Power Train · reported Jun 17, 2026
COMPONENTS THAT FAILED: Multiple systems failed in a connected chain. (1) The DPF aftertreatment differential pressure sensor — a CONFIRMED manufacturing defect per Cummins recall T7186/T7187 (Jan 2026). (2) The Allison automatic transmission — catastrophic internal failure: torque converter destroyed, flexplate warped and cracked, metal fragments throughout. (3) The transmission control unit wiring (circuits 143/123) reversed at the factory. The DEF sensor in the same aftertreatment system also failed back in Dec 2023, 14 months before the DPF symptoms — proving a system-wide defect.…

Other Mack MD years

Compare all Mack MD years · All Mack models

Frequently asked questions

Does the 2023 Mack MD have any recalls?

Yes — NHTSA lists 2 recalls for the 2023 Mack MD: 25V-666 (seat belts), 22V-606 (engine and engine cooling). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.

What is the most common problem with the 2023 Mack MD?

Owners report power train problems most often (1 reports), followed by fuel/propulsion system (1).

Are Mack recall repairs free?

Yes. Safety recall repairs are free at authorized Mack dealers, whether you are the first owner or bought the car used.