Recall Register

1981 Mack MS300T: recalls and complaints

NHTSA lists 4 recall campaigns for the 1981 Mack MS300T. The newest campaign is 83V102000. NHTSA received the report on 27 Sep 1983. The NHTSA record gives the component Power Train / Manual Transmission. NHTSA has no complaint on file for this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 83V102000, in the NHTSA record

All affected parts will be inspected and replaced, if necessary.
NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.

NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on . Complaint file through . Recall file through .

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

4 campaigns, newest first. 6,915 units in total.

  • 83V102000Power Train / Manual Transmission
  • 82V054000Exterior Lighting / Headlights
  • 81V089000Power Train / Driveline
  • 81V032000Exterior Lighting / Brake Lights / Switch

  1. 83V102000Received . 565 units.

    Power Train / Manual Transmission

    Defect, in the NHTSA record
    The yoke of the transmission propeller shaft may lack required strength due to erroneous counterbore operation in which 10 millimeters of extra material may have been cut. This condition could lead to fracture of the yoke in service.
    Remedy, in the NHTSA record
    All affected parts will be inspected and replaced, if necessary.

    Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .

  2. 82V054000Received . 5,700 units.

    Exterior Lighting / Headlights

    Defect, in the NHTSA record
    The circuit wiring on these vehicles is arranged so that a short circuit in the rear taillights will also result in loss of power to the headlamps. For safety reasons the lighting system wiring should be independent.
    Remedy, in the NHTSA record
    Vehicles will have an automatic reset circuit breaker installed to ensure continued headlamp illumination in the event of a short in other lighting systems.

    Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .

  3. 81V089000Received . 500 units.

    Power Train / Driveline

    Defect, in the NHTSA record
    Holes drilled in the rear axle yokes to balance them could cause a failure of the yoke.
    Remedy, in the NHTSA record
    Vehicles will be inspected and all defective yokes will be replaced with yokes without holes.

    Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .

  4. 81V032000Received . 150 units.

    Exterior Lighting / Brake Lights / Switch

    Defect, in the NHTSA record
    On certain vehicles, the semi-trailer stop lights may not activate when hand control lever is activated.
    Remedy, in the NHTSA record
    After inspecting brake light system, a switch will be installed which will activate the trailer stop light when the hand control valve is used, if necessary.

    Report filed by MACK TRUCKS, INCORPORATED.

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

The NHTSA complaint file has no complaint for this model year.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

  1. 19791
  2. 19802
  3. 19814
  4. 19822
  5. 19831
  6. 19882

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

Official channels

Cite this page

Recall Register. 1981 Mack MS300T: recalls and complaints. https://recallregister.com/vehicle/mack/ms300t/1981/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through .

Sources

Source
NHTSA Office of Defects Investigation
Licence
US government work, public domain
Recall file through
29 Sep 2026
Complaint file through
15 May 2019
First complaint in the file
1 Jan 1995
Manufacturer in the recall file
MACK TRUCKS, INCORPORATED

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 1981 Mack MS300T?
6,915 units in 4 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Mack MS300T have for all model years?
NHTSA lists 7 recall campaigns for the Mack MS300T, model years 1979 to 1988. 4 of them name the 1981 model year.
Is an NHTSA investigation of the 1981 Mack MS300T open?
The NHTSA investigation file has no investigation that names this model year.