- The problem
- 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.
- The risk
- When the valve sticks open, it can result in a total loss of air from either the service or the park brake system. The driver may lose braking ability under a service application, possibly resulting in a vehicle crash.
- The fix
- 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 reasonable time should contact mack at 1-610-709-3011 or meritor wabco at 800-535-5560.
Vehicle safety record
2000 Mack DMM Problems, complaints & recalls
No owner complaints about the 2000 Mack DMM have been filed with NHTSA. It is covered by 1 recall, the latest in August 2001 for the controls, pedals and linkages.
NHTSA data checked
CAbout as many problems as a typical DMM year, for its age
- Complaints
- 0
- Recalls
- 1
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
2000 Mack DMM recalls 1
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
What owners say
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No complaints about the 2000 Mack DMM yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Mack DMM: every year compared
All DMM years2000 Mack DMM vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 2000 Mack DMM | 0 | 1 | C | |
| 2000 Mack RD | 2 | 5 | F | Compare |
| 2000 Mack Vision | 1 | 0 | - | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 2000 Mack DMM
Does the 2000 Mack DMM have any recalls?
Yes - NHTSA lists 1 recall for the 2000 Mack DMM: controls, pedals and linkages (August 2001). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 2000 Mack DMM had?
None have been filed with NHTSA so far.
Is the 2000 Mack DMM a reliable vehicle?
Its Safety Index is 50 out of 100 (grade C: about as many problems as a typical Mack DMM year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
What should I do if my 2000 Mack DMM has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data