Total Complaints
2 filings
MACK CV · model year
2 NHTSA complaints, and 5 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2003MACKCV carries 2 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 1 fire, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2003 CV is service brakes, air:disc:chamber with 1 filings, followed by structure:frame and members (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 5 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 5 investigation files overlapping the 2003 CV. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
2 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| SERVICE BRAKES, AIR:DISC:CHAMBER | 1 |
| STRUCTURE:FRAME AND MEMBERS | 1 |
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
ON CERTAIN CHASSIS EQUIPPED WITH DEFIANCE METAL FUEL TANK SUPPORT BRACKET ASSEMBLIES, THE FUEL TANK BRACKET WAS NOT WELDED PER SPECIFICATION. THIS CAN CAUSE THE FUEL TANK TO SEPARATE FROM THE CHASSIS DURING ASSEMBLY OPERATION.
SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
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 I
SERVICE BRAKES, AIR:DISC:CHAMBER
CERTAIN TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." THE FRONT BRAKE CHAMBER ON SOME 18,000 LB. AND 20,000 LB FRONT AXLE ASSEMBLIES IS TOO SMALL TO MEET STOPPING DISTANCE REQUIREMENTS.
POWER TRAIN:AXLE ASSEMBLY
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2002 THROUGH 2004 CL, CV, LE, MR, RB, RD, AND MODEL YEAR 2003 THROUGH 2004 DM HEAVY TRUCKS MANUFACTURED FROM FEBRUARY 1, 2002 THROUGH SEPTEMBER 30, 2003, EQUIPPED WITH AXLE BEAMS MANUFACTURED BY BHARAT FORGE. THE AXLE BEAM MAY HAVE TRANSVERSE SHEAR LINES
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING
ON CERTAIN TRUCKS, THE FUEL TANK MOUNTING STRAP WAS NOT WELDED TO SPECIFICATIONS AND MAY FAIL. THE FUEL TANK STRAP SUPPORTS AND FASTENS THE STEPS FOR THE OPERATOR AND PASSENGER TO ENTER AND EXIT THE CAB.
TL* THE CONTACT OWNS A 2003 MACK CV. THE CONTACT STATED THAT THE SIDE FRAME RAILS WERE BREAKING. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR FURTHER INSPECTION. THE FAILURE MILEAGE AND CURRENT MILEAGES WERE UNKNOWN.
THIS VEHICLE IS A 2003 MACK TRUCK MODEL CV AND IS A STRAIGHT FRAME DUMP TRUCK WITH THREE REAR TANDEM AXLES. STOPPING IS ACHIEVED THROUGH A STANDARD AIR BRAKE SYSTEM WHERE COMPRESSED AIR IS USED AS THE ENERGY MEDIUM. THE BRAKE PEDAL EFFORT OF THE OPERATOR IS USED ONLY TO MODULATE THE AIR PRESSURE APPLIED TO THE BRAKE CHAMBERS. THIS TRUCK CONFORMS TO THE DUAL BRAKE SYSTEM. ALTHOUGH THE ENERGY SOURCE IS COMPRESSED AIR, THE TRANSMISSION OF ENERGY FROM THE BRAKE CHAMBER TO THE FRICTION SURFACES INVOLVES LEVER ARMS AND CAMS. THE COMPRESSED AIR IN THE SPRING BRAKE CHAMBER MAINTAINS PRESSURE ON THE SPRING DURING NORMAL OPERATION. WHEN THE BRAKES ARE ACTIVATED, THE AIR IS RELIEVED ALLOWING THE SPRING TO DECOMPRESS AND APPLY THE FRICTION SURFACES TO THE DRUMS THROUGH THE MECHANICAL LINKAGE. THE FIRE PATTERNS INDICATE THAT THE FIRE WAS LOCALIZED AND ORIGINATED FROM FRICTION PRODUCED BY THE BRAKE PADS AGAINST THE DRUM ON THE CENTER RIGHT REAR TANDEM WHEELS. THE FRICTION PRODUCED TEMPERATURES IN EX
mDrive Transmission Failure to Disengage
Vehicle Roll Away
Failing 5th wheel attachment bolts
AIR COMPRESSOR DISCHARGE LINE
INTEGRAL HUB AND BEARING ASSEMBLY
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.