Recall campaign · NHTSA 78V068000

Service brakes, air: antilock: control unit/module

MACK TRUCKS, INCORPORATED filed this campaign with NHTSA on 1978-04-04.

Recall campaignNHTSA 78V068000

Service brakes, air: antilock: control unit/module

Component
Service brakes, air: antilock: control unit/module
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
9,700
Reported to NHTSA
1978-04-04
Owners notified
1978-09-01

Defect description

AN AXLE "NO BRAKE" CONDITION COULD RESULT FROM AN EATON CONTROLLER INTERNAL ELECTRICAL MALFUNCTION. THIS CONDITION MAY CAUSE THE ANTI-WHEEL LOCK VALVE SOLENOID TO BE CONTINUOUSLY ENERGIZED AND PREVENT THE BRAKES FROM BEING APPLIED ON ONE OF THE AXLES. AS A RESULT, THE ANTI-WHEEL LOCK WARNING LAMP IS NOT ACTIVATED.

Manufacturer remedy

THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE ANTI-WHEEL LOCK CONTROLLER WITHOUT CHARGE TO OWNER.

Notes

VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH EATON 21 ANTI-LOCK CONTROLLERS.SYSTEM: SERVICE BRAKES; ANTI-WHEEL LOCK SOLENOID.CONSEQUENCES OF DEFECT: LOSS OF BRAKES ON ANY ONE AXLE WILL RESULT IN EXTENDEDVEHICLE STOPPING DISTANCES, WHICH COULD LEAD TO A VEHICLE ACCIDENT.

Scope of coverage

39 model years across 13 models.

ModelYears on record
MACK DM1976 1975 1974
MACK DMM1976 1975 1974
MACK F1976 1975 1974
MACK HMM1976 1975 1974
MACK MB1976 1975 1974
MACK R1976 1975 1974
MACK RD1976 1975 1974
MACK RL1976 1975 1974
MACK RM1976 1975 1974
MACK RS1976 1975 1974
MACK U1976 1975 1974
MACK WL1976 1975 1974
MACK WS1976 1975 1974

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.