The Used Car Index

2025 Mack MD problems

NHTSA lists 1 complaints for the 2025 Mack MD, 0 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.

Data build 2026-10-07.

NHTSA lists this vehicle as MACK MD.

At a glance

Complaints
1
With crash
0
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
2
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
15,841
Investigations
0
Open investigations
0
Manufacturer communications
20

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
POWER TRAIN1100.0%
SERVICE BRAKES1100.0%
Top subsystems
SystemSubsystemComplaints

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
loss of control1100.0%0.98
Severities
LabelCountShare of taggedMean confidence
moderate1100.0%0.97

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 1 tagged complaints of 1 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

2 recalls.

25V666000

Date: 2025-10-06. Systems: SEAT BELTS.

Defect: 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."

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

Remedy: 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.

Do not drive: No. Park outside: No.

24V333000

Date: 2024-05-14. Systems: EQUIPMENT.

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 MD and Terrapro vehicles. The Gross Axle Weight Rating (GAWR) listed on the vehicle certification label is incorrect, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."

Consequence: An overloaded vehicle can increase the risk of a crash.

Remedy: Dealers will remove and replace the label, free of charge. Owner notification letters were mailed May 28, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0463.

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

20 manufacturer communications.

Communications by system
SystemCount
ELECTRICAL SYSTEM6
ENGINE5
POWER TRAIN5
ENGINE AND ENGINE COOLING2
SERVICE BRAKES2
FUEL/PROPULSION SYSTEM1
SUSPENSION1
UNKNOWN OR OTHER1

11032086

Date: 2026-04-09. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

CBR - Mack Carrier Nut Adhesive Change.

11032092

Date: 2026-04-09. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.

11030579

Date: 2026-03-19. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, UNKNOWN OR OTHER.

CBR - No Start Condition After Over the Air Programing.

11030591

Date: 2026-03-12. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

TSB - Cable, Gear Selector, Replacement

11024784

Date: 2025-10-22. Type: Service Bulletin/Repair Instructions. Systems: VISIBILITY/WIPER.

CBR - Wiper Linkage Inspection.

11022289

Date: 2025-08-22. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a Critical failure, the vehicle will remain in Safe State.

11021332

Date: 2025-07-28. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.

11021333

Date: 2025-07-17. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, SERVICE BRAKES.

CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.

11021335

Date: 2025-07-08. Type: Service Campaign. Systems: ENGINE.

CBR - Mack Trucks has identified that certain 2025 model year Mack Medium Duty (MMD) vehicles may have been assembled with insufficient torque on the fan hub retaining hardware.

11018813

Date: 2025-05-27. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, FUEL/PROPULSION SYSTEM.

Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
MD1

Same model, other years

All model years | All Mack models

Other Mack models, 2025

Sources

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