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Service bulletins for the 1999 Mercury Cougar

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

229 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
991381999-08-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. A ROUGH IDLE, STALLING AT AN IDLE, REDUCED POWER AND / OR MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODES (DTCS) P1381 AND P1383 MAY BE STORED IM MEMORY ON SOME VEHICLES. *TT
991371999-08-26. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SOME VEHICLES MAY EXHIBIT A NO FORWARD ENGAGEMENT. *TT
991051999-08-25. Service bulletin. UNKNOWN OR OTHER. SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP ON AND DIAGNOSTIC TROUBLE CODES P1381 AND / OR P1383 STORED IN MEMORY. THE VEHICLE MAY ALSO HAVE A ROUGH IDLE OR REDUCED POWER CONDITION, AND / OR MAY STALL AT AN IDLE. *TT
991291999-08-24. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. EXPERIENCING A WHINE / BUZZ TYPE NOISE IN THE SPEAKERS OF THE ENTERTAINMENT RADIO OR TWO-WAY RADIO ON VEHICLES WITH AN IN-TANK ELECTRIC FUEL PUMP. *TT
99921999-08-20. Service bulletin. STRUCTURE:BODY:TRUNK LID. CONCERNS WITH THE LIFTGATE LATCH NOT RELEASING USING INTERIOR RELEASE OR RKE TRANSMITTER; POPPING UP WHEN UNLOCKED; MISALIGNMENT; AND / OR HIGH CLOSING EFFORTS. *TT
998161999-08-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. FORD MOTOR COMPANY NOW RECOMMENDS SAE 5W-30 VISCOSITY GRADE FOR SERVICING ANY FORD GASOLINE-POWERED VEHICLE REGARDLESS OF MODEL YEAR. *TT
99891999-08-19. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS. SOME VEHICLES MAY EXHIBIT A GROANING NOISE FROM THE FRONT BRAKES DURING CITY DRIVING. *TT
126211999-06-08. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE. SUBJECT REGARDING IGNITION LOCK SERVICE REPLACEMENT. *TT
126121999-06-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CONCERNS WITH TEMPERATURE VARIATION BETWEEN THE INSTRUMENT PANEL AIR REGISTERS DUE TO INSUFFICIENT REFRIGERANT CHARGE. *TT
125981999-06-08. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. INFORMATION REGARDING TWO CD4E TRANSAXLES ADDED TO FORD QUALITY RENEWAL (FQR) PROGRAM. *TT
125881999-06-08. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS. VEHICLES MAY EXHIBIT A GRINDING / GROANING NOISE FROM THE FRONT BRAKES DURING STOP-AND-GO DRIVING. *TT
58481999-06-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. CONCERNS WITH CONTAMINATION IN THE COOLANT EXPANSION TANK. *TT
58231999-06-04. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SOME VEHICLES EQUIPPED WITH A CD4E TRANSAXLE MAY EXHIBIT A TRANSMISSION NO FORWARD ENGAGEMENT. *TT
58131999-06-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. INFORMATION ON DIAGNOSTIC TIPS FOR CD CHANGER. *TT
57471999-06-03. Service bulletin. EXTERIOR LIGHTING. SOME VEHICLES WITH THE BULB FAILURE WARNING (LAMP-OUT WARNING) IN THE OPTIONAL OVERHED WARNING CONSOLE MAY ILLUMINATE IF AN INCORRECT BULB IS INSTALLED IN ANY EXTERIOR LAMP LOCATION. *TT
994121999-05-12. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. SERVICE TIPS REGARDING THE OUTSIDE REARVIEW MIRROR "BREAKAWAY" DESIGN. *TT
99491999-05-12. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE. CONDITIONS WITH DIAGNOSTIC TROUBLE CODE (DTC) P0460 STORED IN CONTINUOUS MEMORY WITHOUT ANY DRIVEABILITY CONCERNS. *TT
99431999-05-11. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE; POWER TRAIN. INFORMATION REGARDING REPROGRAMMING POWERTRAIN CONTROL MODULES (PCMS). *TT
982461999-03-16. Service bulletin. ELECTRICAL SYSTEM. FORD MOTOR COMPANY HAS RELEASED A NEW ELECTRICAL GREASE ( F8AZ - 19G208-AA ) TO REDUCE THE POSSIBILITY OF MOISTURE CORROSION AT THE TERMINALS. *YC
982421999-03-16. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. POWERTRAIN CONTROL MODULE (PCM) REPROGRAMMING INFORMATION WHEN REPLACING TRANSAXLE. *YC
9823161999-03-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. PREMATURE DETERIORATION OF THE COOLING SYSTEM RESULTING IN POTENTIAL LEAKS AND / OR COMPONENT FAILURE MAY OCCUR IF CONVENTIONAL PREMIUM ENGINE COOLANT (GREEN-COLORED) IS MIXED WITH NEW EXTENDED LIFE ENGINE COOLANT ( ORANGE-COLORED) FOUND IN THE VEHICLE. *YC
9823151999-03-04. Service bulletin. STEERING:COLUMN LOCKING:ANTI-THEFT DEVICE. CONCERNS OF THE PASSIVE ANTI-THEFT SYSTEM (PATS) MAY BE INOPERATIVE. *YC
9820101999-03-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXPERIENCING A " BUZZING " OR " RATTLING " NOISE FROM THE EXHAUST SYSTEM. *YC
982081999-03-02. Service bulletin. EXTERIOR LIGHTING. THE INTERIOR DOME LAMP AND / OR DOOR AJAR LAMP ( DOOR AJAR LAMP ONLY ON VEHICLES WITH AUXILIARY WARNING SYSTEM) REMAINS ILLUMINATED WITH THE DOORS CLOSED ON SOME VEHICLES. *YC
9821141999-03-01. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH. CONDITION WITH HIGH EFFORT IGNITION KEY INSERTION/ REMOVAL AND /OR KEY CHIMES SOUND WITH DOOR OPEN AND IGNITION KEY REMOVED. *YC

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.