1975 Mack Rm Recalls, Complaints & Specs
3 safety recalls list the 1975 Mack Rm. Check your own VIN below.
3 safety recalls for the 1975 Mack Rm
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
-
Service brakes, air: control unit/module
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.
-
Fan (engine and engine cooling)
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.
-
Hoses, lines/piping, and fittings (service brakes)
No owner complaints on file
NHTSA has no owner complaints on file for the 1975 Mack Rm. 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 Rm model years
Recall and complaint counts for every Mack Rm model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 1972 Mack Rm | 1 | 0 |
| 1973 Mack Rm | 1 | 0 |
| 1974 Mack Rm | 3 | 0 |
| 1975 Mack Rm | 3 | 0 |
| 1976 Mack Rm | 3 | 0 |
| 1977 Mack Rm | 6 | 0 |
| 1978 Mack Rm | 2 | 0 |
| 1979 Mack Rm | 2 | 0 |
| 1980 Mack Rm | 1 | 0 |
| 1981 Mack Rm | 1 | 0 |
| 1982 Mack Rm | 1 | 0 |
| 1983 Mack Rm | 1 | 0 |
| 1984 Mack Rm | 1 | 0 |
| 1985 Mack Rm | 1 | 0 |
| 1986 Mack Rm | 2 | 0 |
| 1987 Mack Rm | 3 | 0 |
| 1988 Mack Rm | 3 | 0 |
| 1989 Mack Rm | 2 | 0 |
| 1990 Mack Rm | 1 | 0 |
| 1991 Mack Rm | 1 | 0 |
| 1992 Mack Rm | 2 | 0 |
| 1993 Mack Rm | 1 | 0 |
Checking a specific 1975 Mack Rm
How do I know if my 1975 Mack Rm 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. 3 campaigns currently list the 1975 Mack Rm; 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
- Mack28 complaints
- Anthem (an)12 complaints
- Granite (gr)9 complaints
- CXU6127 complaints
- Ch6 complaints
- Gu6 complaints
- CH6005 complaints
- Cxu5 complaints
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.