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AnyRecalls

Mack HMM recalls by year

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

6 recalls found for the Mack HMM in NHTSA data as of September 22, 2026. Choose a model year:

Model yearRecallsComplaints
1977 Mack HMM40
1976 Mack HMM40
1975 Mack HMM20
1974 Mack HMM20
1973 Mack HMM10
1972 Mack HMM10

Has your Mack been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.

Newest Mack HMM recalls

  • Apr 4, 197878V068000Service brakes, air9,700 vehicles
    Mack DM, DMM and 11 more models

    An axle "no brake" condition could result from an eaton controller internal electrical malfunction.

  • Nov 21, 197777V205000Suspension7,400 vehicles
    Mack DM, F and 10 more models

    A deficiency exists in the welds securing the rear spring insulator bracket to the axle housing.

  • Nov 21, 197777V204000Seat belts11 vehicles
    1976-1977 Mack HMM

    The involved vehicles do not conform to federal motor vehicle safety standard nos. 207, "seating systems", and 210, "seat belt assembly anchorages".

  • Oct 12, 197777V174000Seat belts6,591 vehicles
    Mack CF, DM and 7 more models

    The involved vehicles do not conform to federal motor vehicle safety standard no. 209, "seatbelt assemblies".

  • Oct 12, 197777V173000Engine and engine cooling48,000 vehicles
    Mack CF, DM and 12 more models

    The flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation.

  • Jul 28, 197676V118000Power train105 vehicles
    Mack DMM, HMM and 1 more model

Other Mack models