By model year
Mack MH complaints by model year
Owner complaints filed with NHTSA, all years filed, by model year.
Source: NHTSA ODI. Complaints are not verified by NHTSA, and NHTSA publishes no sales volumes, so counts are not rates.
Model line
Mack MH
Every Mack MH model year on file, 1981 to 1993. Pick a year for its recalls, investigations, service bulletins and the full text of owner complaints.
Owner complaints, all model years00 involved a crash, fire, injury or death
Model years131981 to 1993
Recall campaigns19Distinct campaigns listing it
Service bulletins286Summed across model years
Components
Complaints by component
Owner complaints across all model years, by component.
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Source: NHTSA ODI complaints file.
Model years
The record for each Mack MH model year
Peer index compares complaints with the median vehicle of the same model year and body class (100 is the median). It corrects for age, not for how many were sold.
| Year | Body | Complaints | Severity index | Peer index | Recalls | Investigations | Bulletins |
|---|---|---|---|---|---|---|---|
| 1993 | Not decoded | 0 | None | None | 1 | 0 | 22 |
| 1992 | Not decoded | 0 | None | None | 2 | 0 | 22 |
| 1991 | Not decoded | 0 | None | None | 1 | 0 | 22 |
| 1990 | Not decoded | 0 | None | None | 1 | 0 | 22 |
| 1989 | Not decoded | 0 | None | None | 2 | 0 | 22 |
| 1988 | Not decoded | 0 | None | None | 4 | 0 | 22 |
| 1987 | Not decoded | 0 | None | None | 6 | 0 | 22 |
| 1986 | Not decoded | 0 | None | None | 3 | 1 | 22 |
| 1985 | Not decoded | 0 | None | None | 5 | 1 | 22 |
| 1984 | Not decoded | 0 | None | None | 9 | 0 | 22 |
| 1983 | Not decoded | 0 | None | None | 8 | 0 | 22 |
| 1982 | Not decoded | 0 | None | None | 7 | 0 | 22 |
| 1981 | Not decoded | 0 | None | None | 0 | 0 | 22 |
Source: NHTSA ODI. Body class from NHTSA's VIN decoder where decoded.
Latest recalls
Recent campaigns covering the Mack MH
- 94V-032 Feb 15, 1994
Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and…
Speed control · 40k vehicles - 93V-024 Feb 16, 1993
Carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process
Trailer hitches · 4,924 vehicles - 89V-079 May 15, 1989
Torque rod bolts are grade 2 instead of grade 5, which is not to specification, and could fail
Suspension · 100 vehicles - 89V-033 Mar 3, 1989
Dowels may have been omitted during spring cap installation; this would put shear load on the four (4) spring cap bolts
Suspension · 152 vehicles - 89V-024 Feb 21, 1989
Seat tether belt 11.0 inches long was installed instead of the 8.5 inches long belt required for this chassis
Seat belts · 19 vehicles - 88V-147 Sep 6, 1988
Seat tether belts may not have been adjusted during assembly
Seat belts · 11k vehicles - 87V-187 Dec 14, 1987
Pitman arm to drag link angle is out of phase
Steering · 29 vehicles - 87V-179 Nov 23, 1987
Cross steering levers may be improperly heat treated and subject to fail during normal operation
Steering · 323 vehicles - 87V-166 Oct 26, 1987
On right hand steering arm, keyway may be in the wrong location causing a toggle condition to occur under certain conditions
Steering · 200 vehicles - 86V-008 Jan 17, 1986
Left or right cab step may crack in its welded area due to flexing of the step during entering and exiting
Structure · 7,000 vehicles
Source: NHTSA ODI recalls file.