Model year record

1979 MACK MS300P

2 recall campaigns on file for this model year. No owner complaints on file.

Recalls

Recall campaignNHTSA 82V054000

Exterior lighting: headlights

Component
Exterior lighting: headlights
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
5,700
Reported to NHTSA
1982-05-24
Owners notified
1982-11-24

Defect description

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.

Manufacturer remedy

VEHICLES WILL HAVE AN AUTOMATIC RESET CIRCUIT BREAKER INSTALLED TO ENSURE CONTINUED HEADLAMP ILLUMINATION IN THE EVENT OF A SHORT IN OTHER LIGHTING SYSTEMS.

Recall campaignNHTSA 81V157000

Visibility: defroster/defogger/hvac system: fan/motor

Component
Visibility: defroster/defogger/hvac system: fan/motor
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
4,920
Reported to NHTSA
1981-12-29
Owners notified
1982-08-12

Defect description

WHEN THE IGNITION KEY IS IN THE "ON" POSITION AND THE HEATER IS OPERATING AT THE "LOW" OR "MEDIUM" SETTING, THE HEATER SWITCH WIRING WILL OVERLOAD IN THE EVENT THE HEATER MOTOR SEIZES.

Manufacturer remedy

A SPEED VARIATION RESISTANCE UNIT AND AN ELECTRIC MOTOR MOISTURE PROTECTION CAP WILL BE INSTALLED WITHOUT CHARGE.

Owner complaints

A complaint is one person's report to a federal agency. It is not a finding.

No complaints recorded for this model year.

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.