2003 Mack Dmm Recalls, Complaints & Specs
1 safety recall lists the 2003 Mack Dmm. Check your own VIN below.
1 safety recall for the 2003 Mack Dmm
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Check valve (service brakes)
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.
No owner complaints on file
NHTSA has no owner complaints on file for the 2003 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 year | Recalls | Complaints |
|---|---|---|
| 1972 Mack Dmm | 1 | 0 |
| 1973 Mack Dmm | 1 | 0 |
| 1974 Mack Dmm | 4 | 0 |
| 1975 Mack Dmm | 4 | 0 |
| 1976 Mack Dmm | 4 | 0 |
| 1977 Mack Dmm | 5 | 0 |
| 1978 Mack Dmm | 3 | 0 |
| 1979 Mack Dmm | 1 | 0 |
| 1980 Mack Dmm | 1 | 0 |
| 1981 Mack Dmm | 1 | 0 |
| 1982 Mack Dmm | 1 | 0 |
| 1983 Mack Dmm | 1 | 0 |
| 1984 Mack Dmm | 1 | 0 |
| 1985 Mack Dmm | 1 | 0 |
| 1986 Mack Dmm | 1 | 0 |
| 1987 Mack Dmm | 2 | 0 |
| 1988 Mack Dmm | 2 | 0 |
| 1989 Mack Dmm | 2 | 0 |
| 1990 Mack Dmm | 1 | 0 |
| 1991 Mack Dmm | 1 | 0 |
| 1992 Mack Dmm | 1 | 0 |
| 2000 Mack Dmm | 1 | 0 |
| 2001 Mack Dmm | 2 | 0 |
| 2003 Mack Dmm | 1 | 0 |
Checking a specific 2003 Mack Dmm
How do I know if my 2003 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. 1 campaign currently lists the 2003 Mack Dmm; your car may already have been repaired under it.
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 03V253000).
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.