1984 Buick Century
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 1984 Buick Century is worth — from official NHTSA and EPA data. 2 on record.
1984 Buick Century at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
1984 Buick Century recalls 4
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE C…
Fix: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).
SOME WAGONS WERE ASSEMBLED WITH A JA2 REAR SYSTEM INSTEAD OF THE JA3 BRAKE SYSTEM. THESE STATION WAGONS MAY EXCEED THE MAXIMUM STOPPING DISTANCE REQUIRED BY FMVSS 105. CONSEQUENCE OF DEFECT: A CRASH COULD OCCUR WITHOUT PRIOR WARNING SHOULD A STOPPING DISTANCE CONFORMING WITH FMVSS 105 BE REQUIRED WHILE THE VEHICLE IS IN MOTION.
Fix: INSTALL CORRECT BRAKE SYSTEM.
THE FUEL SYSTEM MAY LEAK AT THE THROTTLE BODY INJECTION FUEL FEED PIPE CONNECTION. CONSEQUENCE OF DEFECT: THIS LEAKAGE COULD RESULT IN AN UNDERHOOD FIRE WHICH COULD SPREAD TO THE PASSENGER COMPARTMENT AND CAUSE BURN INJURIES TO OCCUPANTS.
Fix: REPLACE THE FUEL FEED PIPE.
SOME VEHICLES HAVE BUCKET SEAT BACK LOCKS THAT DO NOT CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD 207, ANCHORAGE OF SEATS. IN EVENT OF A CRASH, THE SEAT BACK LOCK MAY NOT FUNCTION.
Fix: INSPECTION OF SEAT BACK LOCKS WILL BE PERFORMED. LOCKS THAT HAVE BENT, BROKEN OR MISSING HOOKS WILL BE REPLACED.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
1984 Buick Century common problems
The most-reported problem areas across all 9 owner complaints filed with NHTSA — and what to check before you buy.
1984 Buick Century MPG & running costs
Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 9 versions of this model year; combined is shown as a range and the other figures are averages.
Estimated 5-year cost to own
A rough guide to what running a 1984 Buick Century costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Dimensions & weight
Manufacturer-reported figures for the 1984 Buick Century — ranges cover the 3 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.
Investigations & service bulletins
NHTSA defect investigations 6
HEADLAMP SWITCH FAILURE Closed
===
NHTSA #PE88027 · Exterior Lighting · opened Feb 1988 · closed May 1988POWER ST. ASSIST Closed
SUMMARY OF INFORMATION FROM THE MANUFACTURER: GM HAS DEVELOPED A SPLITRING FIELD REPAIR KIT AND IS EXTENDING THE WARRANRY ON ALL 1982-84 A,J, AND X, BODY CARS AND 1985 C,BODY CARS. THE WARRANTY APPLIES TO CARSTHAT ARE FOR 50,000 MILES OR 5 YRS. IT INCLUDES REIMBURSEMENT FOR PREVIOUSREPAIRS.ANALYSIS: WEARING OF THE RACK AND PINION HOUSING AND LOW AMBIENT TEMPCAN CAUSE TEMPORARY LOSS OF POWER ASSIST. TEFLON O RINGS FAI…
NHTSA #EA87006 · Steering · opened Dec 1986 · closed Sep 1988POWER STEERING FAILURE Closed
POWER STEERING FAILURE
NHTSA #DP86018 · opened Sep 1986 · closed Dec 1986POWER BRAKE ASSIST Closed
SUMMARY OF INFORMATION FROM MANUFACTURER: IN ANALYZING THIS MATTER GMIDENTIFIED THREE PRIMARY SOURCES FOR THE COMPLAINTS. THE FIRST INVOLVESA GRADUAL DETERIORATION IN PERFORMANCE OF BELT DRIVEN VACUUM PUMPS. AC-CORDING TO GM, VEHICLES EQUIPPED WITH VACUUM PUMPS ARE ALSO EQUIPPED WITHA "LOW VACUUM" WARNING LIGHT, WHICH IS ILLUMINATED WHEN BOOSTER VACUUMFALLS BELOW 10 IN. HG. THIS SIGNALS THE DRIVER THAT MAINTENANCE IS…
NHTSA #EA85046 · Service Brakes, Hydraulic · opened Aug 1985 · closed Jul 1987REAR BRAKE LOCKUP Closed
NHTSA #C85007 · Service Brakes, Hydraulic · opened Jun 1985 · closed May 1989ENGINE COMPARTMENT FIRES Closed
NHTSA #PE85016 · Engine And Engine Cooling · opened Dec 1984 · closed Mar 1985An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.
Source: NHTSA Office of Defects Investigation, listed for the CENTURY. Model-year data, not specific to one car.
Canadian recalls 6
Transport Canada recall campaigns for the 1984 Buick Century. Relevant if the car was first sold in, or imported from, Canada.
Brakes
On certain vehicles, excessive enlargement of a pilot hole in the rear brake backing plate could allow the wheel cylinder to rotate possibly leading to loss of brake fluid in the rear brakes and loss of rear braking capability.this Would result in increased stopping distances and possible crash. note: vehicles in ontario and quebec only.
Transport Canada #1986056 · May 1986Not Entered
VEHICLES WERE ASSEMBLED WITH INCORRECT REAR BRAKE SYSTEMS AND DO NOT MEET THE STOPPING DISTANCE REQUIREMENTS OF C.M.V.S.S. 105- HYDRAULIC BRAKE SYSTEMS. STATION WAGONS ONLY.
Transport Canada #1985092 · Aug 1985Not Entered
ON VEHICLES WITH 2.5L ENGINES. THE FUEL SYSTEM MAY LEAK AT THE THROTTLE BODY INJECTION FUEL FEED PIPE CONNECTION PRESENTING THE POSSIBILITY OF AN UNDERHOOD FIRE.
Transport Canada #1985032 · Mar 1985Brakes
On certain vehicles, the rear brake backing plates may develop a corrosion condition which could result in loss of rear brake fluid and loss of rear braking capabilities. This recall affects vehicles sold in the Maritime provinces only.
Transport Canada #1985007 · Jan 1985Seats And Restraints
On certain vehicles, the front seat back locks may not lock under forward load conditions and are therefore not in compliance with CMVSS 207 - Seat Anchorages.
Transport Canada #1984027 · Feb 1984Not Entered
THESE VEHICLES DO NOT COMPLY WITH CMVSS 108 - LIGHTING.
Transport Canada #1983122 · Dec 1983Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the Buick Century
Buick Century is the model name that was used by Buick for a line of upscale full-size cars from 1936 to 1942 and 1954 to 1958, as well as from 1973 to 2005 for mid-size cars.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.