3 NHTSA safety recall campaigns were found for the 1978 Dodge Diplomat.
Component: LATCHES/LOCKS/LINKAGES:HOOD:LATCH
Recall date: 1977-12-28
ON THE INVOLVED VEHICLES, THE HOOD SECONDARY CATCH SYSTEM MAY BE MISALIGNED WHICH MAY CAUSE THE SECONDARY CATCH TO MALFUNCTION. CONSEQUENTLY, THE HOOD MAY NOT BE SECURELY LATCHED.
DEALER WILL ADJUST THE CATCH SYSTEM TO FULLY SECURE THE HOOD, WITHOUT CHARGE.
Component: STEERING: STEERING WHEEL/HANDLE BAR
Recall date: 1977-11-28
THE COLUMNS MAY CONTAIN STEERING SHAFTS IN WHICH THE STEERING COLUMN COUPLING ROLL PIN RETAINING NOTCH WAS MACHINED TOO DEEP. THIS MAY CAUSE THE STEERING WHEEL SHAFT TO BECOME DISENGAGED FROM THE REST OF THE STEERING ASSEMBLY.
DEALER WILL INSTALL A COTTER PIN THROUGH THE ROLL PIN TO ENSURE RETENTION, AT NO COST TO OWNER.
Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
Recall date: 1977-10-25
ON THE INVOLVED VEHICLES, DAMAGE TO THE FRONT WHEEL BRAKE HYDRAULIC SYSTEM COULD OCCUR DUE TO FRONT WHEEL BRAKE LINE TUBE CORROSION. FRONT WHEEL BRAKE HOSES MAY BECOME BRITTLE AND CRACK DUE TO PROLONGED OPERATION IN COLD TEMPERATURES.
THE DEALER WILL REPLACE BOTH FRONT HOSES IF FOUND NECESSARY AND IN ADDITION, WILL INSTALL A PLASTIC SHIELD BETWEEN THE BATTERY THERMO-GUARD AND THE TUBES TO PREVENT CORROSION.
Recall applicability can depend on VIN and production details. Confirm your specific vehicle with the manufacturer or the official NHTSA VIN recall lookup.