1985 Mack MH
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
Have the VIN?
These records cover every 1985 Mack MH. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
5 recalls name the 1985 Mack MH. Newest first.
Seat tether belts may not have been adjusted during assembly.
Risk and remedy
Risk
During an impact, driver and/or rider can move forwardand possibly strike the windshield, even when wearing a seat belt.
Remedy
Adjust seat tether belt if necessary.
Left or right cab step may crack in its welded area due to flexing of the step during entering and exiting. consequence of defect: as the cracks extend, the tubular step could partially collapse and break without warning to the user, and could…
Risk and remedy
Remedy
Install a reinforcement brace if no cracks are found. in addition, replace step if cracks are present.
The dual double check valve may not release the proper air volume to the brake system, causing a slight timing delay between the tractor and the trailer brake system. consequences of defect: if the brakes are suddenly…
Risk and remedy
Remedy
Install two new sleeves in the dual double check valve which will increase air flow.
The drag links may have been installed incorrectly allowing drag link clamp bolt to axle beam interference. consequence of defect: during a turning maneuver, increased steering effort or complete lockup of steering could occur without warning.…
Risk and remedy
Remedy
Assure that drag links are installed to correct interference condition.
The flip out step clevis on the bumper may fail and break under the weight of the person standing on the step to service the front area of the vehicle. consequence of defect: this sudden break will cause the…
Risk and remedy
Remedy
Remove the step clevis and replace with a new improved clevis.
Defect investigations
NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.
- Seat tether failure
Summary: truck driver reports seat teathers are not properly adjusted at factory, allowing seat to hinge forward in a collision. Teathers act as restrainers, and if improperly adjusted seat belt IS useless as it IS attached to the seat. During sudden deceleration or collision the whole assembly hinges forward allowing possible facial contact with the windshield.===
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 10215315Programming Failure - Chassis With Cummins Engine And An Allison Transmission
- 10215312(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
- 10215289Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1
- 10215287US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
- 10213658Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
- 10213652Low Oil Pressure Diagnostic Process For 11 Liter Engines
- 10213644Premium Tech Tool ( PTT ) Training Materials And Support Tools
- 10213642No Start Condition After Over The Air Programing - VECU5 No Start "Safe State"
- 10213641Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer
- 10213640Electronically Controlled Suspension (ECS) Losing Air Pressure
- 10213639Low Voltage Disconnect (LVD), Function Description
- 10213638DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
- 10213637DEF Pump Cycling periodically Hours After Key Off
- 10213636Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
- 10213633USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
- 10213632NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
- 10213630Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool ( PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
- 10213625Mack - PTO Pump Speed Calculator
- 10213612(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
- 10213609Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
- 10213608Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
- 10213605Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit
Every Mack MH model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.