Mack DM6 Recalls & Complaints by Model Year
NHTSA lists 3 safety recalls and 0 owner complaints across 2 model years of the Mack DM6 (1999–2003).
Pick your Mack DM6 model year
| Model year | Recalls | Complaints |
|---|---|---|
| 2003 Mack DM6 | 1 | 0 |
| 1999 Mack DM6 | 2 | 0 |
All Mack DM6 recalls (3)
Every NHTSA safety campaign that lists a Mack DM6, most recent first, with the model years each one covers.
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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.
Model years: 2003
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Tie rod assembly (steering)
Vehicle description: heavy duty trucks equipped with tie rod assemblies containing 24-dl model ball sockets and manufactured by trw. Certain of the tie rod ball-socket bearings have a below-specification case depth and/or hardness, which can lead to premature wear of the socket.
Remedy: Dealers will replace the defective tie rods. Owner notification began july 13, 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: 1999
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Connection (steering)
Vehicle description: heavy duty trucks equipped with drag link assemblies containing 24-dl model ball sockets and manufactured by trw. Certain of the tie rod ball-socket bearings have a below-specification case depth and/or hardness, which can lead to premature wear of the socket.
Remedy: Dealers will replace the defective drag links. Owner/distributor notification began august 30, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free…
Model years: 1999
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.