2 NHTSA safety recall campaigns were found for the 1984 Toyota Supra.
Component: ENGINE AND ENGINE COOLING:ENGINE
Recall date: 1984-09-12
OIL PRESSURE SENDER GAUGE MAY BE DEFECTIVE. CONTINUED ENGINE OPERATION UNDER HIGH TEMPERATURE AND HIGH PRESSURE MAY CAUSE THE SENDING UNIT TO LEAK OIL OR MAY CAUSE THE ENGINE TO LOCK UP.
REPLACEMENT OF THE OIL SENDER GAUGE WITHOUT COST TO THE OWNER.
Component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
Recall date: 1983-12-08
VOLTAGE REGULATOR WHICH CONTROLS THE AMOUNT OF FLOW IN THE ELECTRICAL SYSTEM BETWEEN THE BATTERY AND THE ALTERNATOR, MAY HAVE MANUFACTURING ERRORS IN AN INTEGRATED CIRCUIT. THE REGULATOR MAY OVERCHARGE THE BATTERY.
DEALER WILL REPLACE THE VOLTAGE REGULATOR AT NO CHARGE.
Recall applicability can depend on VIN and production details. Confirm your specific vehicle with the manufacturer or the official NHTSA VIN recall lookup.