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1975 Mack Dmm Recalls, Complaints & Specs

4 safety recalls list the 1975 Mack Dmm. Check your own VIN below.

4
safety recalls
0
owner complaints to NHTSA

4 safety recalls for the 1975 Mack Dmm

Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.

  1. Arm (steering)

    NHTSA 78V172000 Reported 13,800 vehicles potentially affected MACK TRUCKS, INCORPORATED

    The existing cross steering arms may have insufficient fatigue life in the neck area. This is near the boss for the cross steering tube ball joint connection. Failure of either of the cross steering levers could lead to loss of steering control of the right front wheel.

    Remedy: The dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.

  2. Service brakes, air: control unit/module

    NHTSA 78V068000 Reported 9,700 vehicles potentially affected MACK TRUCKS, INCORPORATED

    An axle "no brake" condition could result from an eaton controller internal electrical malfunction. This condition may cause the anti-wheel lock valve solenoid to be continuously energized and prevent the brakes from being applied on one of the axles. As a result, the anti-wheel lock warning lamp is not activated.

    Remedy: The dealer will inspect and, if necessary, replace the anti-wheel lock controller without charge to owner.

  3. Fan (engine and engine cooling)

    NHTSA 77V173000 Reported 48,000 vehicles potentially affected MACK TRUCKS, INCORPORATED

    The flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation. If such a condition exists and the cracks go undetected, continued operation could cause pieces of the stiffener to break off.

    Remedy: Dealer will replace the original fan with a steel fixed blade fan, free of charge.

  4. Hoses, lines/piping, and fittings (service brakes)

    NHTSA 75V192000 Reported 1,200 vehicles potentially affected MACK TRUCKS, INCORPORATED

No owner complaints on file

NHTSA has no owner complaints on file for the 1975 Mack Dmm. For context, the average model year in NHTSA's database has dozens; a zero can mean a reliable vehicle, a rare one, or both.

Compare Mack Dmm model years

Recall and complaint counts for every Mack Dmm model year in NHTSA's database.

Model yearRecallsComplaints
1972 Mack Dmm10
1973 Mack Dmm10
1974 Mack Dmm40
1975 Mack Dmm40
1976 Mack Dmm40
1977 Mack Dmm50
1978 Mack Dmm30
1979 Mack Dmm10
1980 Mack Dmm10
1981 Mack Dmm10
1982 Mack Dmm10
1983 Mack Dmm10
1984 Mack Dmm10
1985 Mack Dmm10
1986 Mack Dmm10
1987 Mack Dmm20
1988 Mack Dmm20
1989 Mack Dmm20
1990 Mack Dmm10
1991 Mack Dmm10
1992 Mack Dmm10
2000 Mack Dmm10
2001 Mack Dmm20
2003 Mack Dmm10

Checking a specific 1975 Mack Dmm

How do I know if my 1975 Mack Dmm has an open recall?

Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 4 campaigns currently list the 1975 Mack Dmm; your car may already have been repaired under some of them.

Is the recall repair free?

Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Mack dealer with your VIN and the NHTSA campaign number (for example 75V192000).

What is the difference between a recall and a complaint?

A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.

Other Mack models

Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.