RecallMyCar

Mack Dmm Recalls & Complaints by Model Year

NHTSA lists 14 safety recalls and 0 owner complaints across 24 model years of the Mack Dmm (1972–2003).

14
safety recalls, all years
0
owner complaints, all years
1977
year with most recalls

Pick your Mack Dmm model year

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

All Mack Dmm recalls (14)

Every NHTSA safety campaign that lists a Mack Dmm, most recent first, with the model years each one covers.

  1. Check valve (service brakes)

    NHTSA 03V253000 Reported 1,232 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Certain heavy duty vehicles fail to comply with the requirements of federal motor vehicle safety standard no. 121, "air brake systems." improper seating of the check valve retainer in the brass fitting housing has occurred. It is possible for the air brake system pressure to push the check valve internal parts into the primary system…

    Remedy: Dealers will replace the check valve. Owner notification began november 26, 2003. Owners should contact mack at 1-610-709-3337.

    Model years: 2003

  2. Pump (steering)

    NHTSA 01V389000 Reported 7,500 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Vehicle description: trucks equipped with e-tech engines. A condition exists on the auxiliary drive shaft of the e-tech engine that causes the loss of power steering on vehicles where the power steering pump is mounted off the front of the engine.

    Remedy: Dealers will inspect the vehicles and replace the nut that holds the gear to the auxiliary drive shaft. Owner notification began march 22, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon…

    Model years: 2001

  3. Service brakes, air: controls, pedals and linkages

    NHTSA 01V189004 Reported 8,268 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Vehicle description: heavy duty trucks equipped with certain meritor-wabco brake system two and four port relay valves. The valve may stick open when a high-pressure application is released.

    Remedy: Dealers will replace these valves. Owner notification began november 16, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a…

    Model years: 2000, 2001

  4. Vehicle speed control

    NHTSA 94V032000 Reported 39,777 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and complete failure of the secondary throttle return mechanism.

    Remedy: A new production secondary throttle return system configuration will be installed.

    Model years: 1987, 1988, 1989, 1990, 1991, 1992

  5. Linkages (visibility)

    NHTSA 90V051000 Reported 2,350 vehicles potentially affected MACK TRUCKS, INCORPORATED

    A tolerance mismatch in the crank assembly of the bosch windshield wiper motor could cause instantaneous separation of the crank from the linkage assembly in the left hand control arm assembly; this would make the system inoperable.

    Remedy: Replace left hand control arm linkage assembly.

    Model years: 1989

  6. Linkages (steering)

    NHTSA 90V034000 Reported 1,862 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Crack may develop on steering arm that could progress and reduce the fatigue life of the steering arm.

    Remedy: Install a redesigned steering arm.

    Model years: 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988

  7. Engine (engine and engine cooling)

    NHTSA 79V133000 Reported 23,000 vehicles potentially affected MACK TRUCKS, INCORPORATED

    In the event of turbocharger compressor wheel failure, one or more of the four capscrews that hold the turbocharger together may be struck by parts of the compressor wheel, resulting in the capscrews being damaged. If these capscrews are damaged to the point that they allow the compressor back plate to dislocate from the turbocharger…

    Remedy: Dealer will install a shield for the heads of the four capscrews, along with stronger sae 8 grade 8 capscrews, if necessary, at no cost to owner.

    Model years: 1977, 1978, 1979

  8. Interconnecting assembly(wiring) (service brakes)

    NHTSA 78V210000 Reported 19,370 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Delays of up to about 2 seconds may exist in the brake application times to the brakes on the bogie axles in the presence of certain types of wheel speed sensor signal discontinuities or distortions that may occur as a result of sensor wire failure. This constitutes a non-compliance to federal motor vehicle safety standard no. 121, "air…

    Remedy: Dealer will install new wheel speed sensors that incorporate improved wiring and the present bogie anti-wheel lock system will be changed to an axle-to-axle system for improved reliability.

    Model years: 1977, 1978

  9. 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.

    Model years: 1974, 1975, 1976, 1977, 1978

  10. 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.

    Model years: 1974, 1975, 1976

  11. 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.

    Model years: 1972, 1973, 1974, 1975, 1976, 1977

  12. Anchorage (seat belts)

    NHTSA 77V174000 Reported 6,591 vehicles potentially affected MACK TRUCKS, INCORPORATED

    The involved vehicles do not conform to federal motor vehicle safety standard no. 209, "seatbelt assemblies". Although the seatbelts in question performed marginally with respect to the 5000 lb. Load requirement, additional testing confirmed that the anchor could fail, allowing either the anchor to slip over the hold-down nut or the…

    Remedy: Dealer will inspect and, if necessary, replace seat belt assemblies without charge to owner.

    Model years: 1977

  13. Universal joint (power train)

    NHTSA 76V118000 Reported 105 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Model years: 1976

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

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

    Model years: 1974, 1975

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.