1998 Buick Century TSBs

SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK.

SUBJECT REGARDING REVISED LOWER INTAKE MANIFOLD INSTALLATION.

SUBJECT REGARDING VARIOUS DRIVEABILITY SYMPTOMS, MALFUNCTION INDICATOR LAMP ILLUMINATES INTERMITTENTLY, DIAGNOSTIC...

SUBJECT REGARDING POLYMER SERVICE PISTONS.

OWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND...

SOME OWNERS MAY COMMENT ON DRIVEABILITY SYMPTONS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT...

SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK.

SOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS GENERALLY ENCOUNTERED AFTER THE...

SOME OWNERS MAY EXPERIENCE A DRIVEABILITY SYMPTOM OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE.

COMMENTS ON A TICKING TYPE NOISE THAT BEGINS SHORTLY AFTER COLD ENGINE START-UP AND GRADUALLY DIMINISHES AS THE ENGINE WARMS UP.

SOME VEHICLES MAY EXPERIENCE A DRIVEABILITY SYMPTOM OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE.

WIRE HARNESS MAY BE STRETCHED, OR THE PCS MAY NOT BE ORIENTED IN THE SAME POSITION, AFTER INSTALLING A SERVICE REPLACEMENT VALVE BODY ASSEMBLY.

SOME VEHICLES BUILT PRIOR TO VIN BREAKPOINT 1F136536 MAY EXHIBIT INTERMITTENT MALFUNCTION INDICATOR LAMP / SERVICE...

REVISED PISTON PIN REMOVAL / INSTALLATION PROCEDURE.

CONCERNS WHERE THE CARPET PULLS OUT FROM UNDER THE SILL PLATE ON THE LEFT OR RIGHT REAR FOOT WELL AREA.

INFORMATION REGARDING ITCHING TYPE NOISE FROM REAR OF VEHICLE.

INFORMATION REGARDING A CLUNK OR POP NOISE IN THE LEFT FRONT FOOT WELL AREA.

SOME CUSTOMERS MAY COMMENT THAT THE RIGHT REAR FLOOR IS WET WITH CLEAN WATER ON VEHICLES BUILT BETWEEN VIN BREAKPOINTS W1587942 AND W1584117.

A CONDITION MAY EXIST OF A HIGH AMOUNT OF EFFORT REQUIRED TO SOUND THE HORN.

SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60 OR 4T60-E TRANSXALES MAY COMMENT ON A GRINDING AND / OR GROWLING...

SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS.

SOME CUSTOMERS MAY COMMENT THAT THE CUPHOLDER MAY SEPARATE FROM THE ARMREST.

CONDITIONS WITH GENERAL WIND NOISE / WINDRUSH.

COMMENTS ON SWITCHING BETWEEN LOCAL STATIONS OR CROSS TALK IN METROPOLITAN AREAS WITH SEVERAL STRONG AM STATIONS.

SOME VEHICLES MAY EXPERIENCE A SHAKING SENSATION WHEN VEHICLE IS OPERATED BETWEEN 35-55 MPH (55-90 KM/H) ON SMOOTH ROADS WITH CURVES OR DIPS.

SUN VISORS MAY NOT STAY IN INTENDED POSITION.

SUBJECT REGARDING CARPET PULLING OUT FROM UNDER FROM THE REAR DOOR SILL PLATE, LEFT OR RIGHT SIDE.

SOME CUSTOMERS MAY COMMENT ON THE TIME IT TAKES THE RIGHT SIDE DOOR GLASS TO DEFOG.

SOME CUSTOMERS MAY COMMENT THAT THE CARPETING IS SEPARATING FROM, OR COMING OUT FROM UNDER THE REAR DOOR OPENING SILL PLATE MOLDING.

SOME CUSTOMERS MAY COMMENT ON WIND NOISE OR A WHISTLE AROUND THE MIRRORS ON THE FRONT DOORS.

INFORMATION ON DIAGNOSING WIND NOISE FROM THE OUTSIDE REARVIEW MIRROR AREA.

SOME OWNERS MAY COMMENT THAT THE DOOR GLASS STICKS IN THE FULL UP POSITION.

SOME CUSTOMERS MAY COMMENT THAT THE BLACK PLASTIC HOUSING AROUND THE OUTSIDE REAR VIEW MIRROR TURNS CHALKY OR IS DULL IN COLOR.

CONCERNS OF DOOR HANDLES ON WHITE PAINTED VEHICLES TRUNING YELLOW.

CONDITION WITH WINDSHIELD WIPER ARMS/BLADES PARK AT INCORRECT LOCATION.

PARTS AVAILABILITY FOR SUNROOF REPAIRS.

A CONDITION MAY EXIST IN WHICH THE FUEL GAUGE READS INCORRECTLY / FLUCTUATES, LOW FUEL CHIME SOUNDS PREMATURELY.

SOME CUSTOMERS MAY COMMENT ON THE FOLLOWING CONDITIONS: 1) THE FUEL GAUGE READING INCORRECTLY.

CONDITIONS WITH INACCURATE FUEL GAUGE / FLUCTUATES, PREMATURE LOW FUEL CHIME.

SOME CUSTOMERS MAY COMMENT THAT THE FUEL GAUGE READS INCORRECTLY / FLUCTUATES, AND THE LOW FUEL CHIME SOUNDS PREMATURELY.

SUBJECT PERTAINING TO DRIVEABILITY SYMPTOMS DUE TO FUEL INJECTOR DEPOSITS.

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

A CONDITION MAY EXIST WHERE THE PRINDLE DISPLAY IS NOT LEGIBLE WHEN MOVING FORM A DARK AREA TO A LIGHTED AREA, WHEN...

SOME CUSTOMERS MAY COMMENT THE RADIO CLOCK GAINS AN EXCESSIVE AMOUNT OF TIME.

SOME CUSTOMERS MAY COMMENT ON RADIO CLOCK GAINS AN EXCESSIVE AMOUNT OF TIME.

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock.

POOR RADIO RECEPTION OR RADIO STATIC/ INCREASED INTERFERENCE WITH REAR WINDOW DEFOGGER ON OR SOME REAR WINDOW DEFOGGER GRIDS MAY BE INOPERATIVE.

POOR RADIO RECEPTION OR RADIO STATIC/ INCREASED INTERFERENCE WITH REAR WINDOW DEFOGGER ON OR SOME REAR WINDOW DEFOGGER GRIDS MAY BE INOPERATIVE.

VEHICLES WITH THE CJ2 AUTOMATIC AIR CONDITIONING AND WITHOUT THE U20 CLUSTER WHICH IS THE DRIVER INFORMATION CENTER AND...

SUBJECT REGARDING HVAC TEMPERATURE DIFFERENCE SIDE TO SIDE AND/OR DIAGNOSTIC TROUBLE CODES B0361, B0441 SET.

INFORMATION ON MANUAL CLIMATE CONTROL MODE SELECTOR.

SUBJECT ON HVAC MANUAL CLIMATE CONTROL MODE SELECTOR FIRST PHASE OWNER NOTIFICATION LETTER MAILING.

CUSTOMER SATISFACTION CAMPAIGN ON HVAC MANUAL CLIMATE CONTROL MODE SELECTOR.

HVAC SIDE TO SIDE TEMPERATURE DIFFERENCE.

INFORMATION REGARDING EXTRA CLIPS IN THE 4T65E TRANSMISSION.

SOME OWNERS MAY COMMENT THAT THE TRANSMISSION RANGE SELECTOR LEVER IS DIFFICULT TO MOVE / SHIFT.

ON SOME VEHICLES, THE TRANSMISSION GEAR RANGE SELECTOR IS DIFFICULT TO SHIFT.

INFORMATION ON GROWLING NOISE IN TRANSAXLE DURING FIRST FOUR MINUTES AFTER START UP.

This preliminary bulletin provides a way to aid the technician in diagnosing transmission fluid leaking from the trans...

CERTAIN VEHICLES MAY EXHIBIT A CONDITION IN WHICH THE OIL WARNING LIGHT WILL NOT ILLUMINATE UNDER LOW / NO OIL PRESSURE CONDITIONS.

SOME VEHICLES MAY EXHIBIT A CONDITION IN WHICH THE OIL WARNING LIGHT WILL NOT ILLUMINATE UNDER LOW / NO OIL PRESSURE CONDITIONS.

INFORMATION ON LEFT TURN SIGNAL INOPERATIVE.

INTERMITTENT CHUGGLE OR FISHBITE ON LIGHT ACCELERATION OR A HIGHWAY SPEEDS WITH NO DIAGNOSTIC TROUBLE CODES (DTCS).

CONDITIONS WITH STEERING SHUDDER OR VIBRATION AT LOW SPEED.

TIE ROD SPECIFICATIONS REVISED.

REVISED OUTER TIE ROD END NUT TIGHTENING SPECIFICATION/TIE ROD END JAM NUT TIGHTENING SPECIFICATION ADDED.

RELEASE OF NEW OUTER TIE ROD ENDS FOR SERVICE.

INFORMATION ON THE BASE AND GAGE CLUSTERS - CIRCUIT BOARD UPDATE.

Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules

This Preliminary Information communication provides information to the technician about vehicles that have a...

Vehicle Recalls

MANUAL DUAL ZONE FAN AND MODE KNOB REPLACEMENT.

CENTER CONSOLE AND/OR ARMREST STORAGE LID WILL NOT REMAIN CLOSED DUE TO A BROKEN LATCH.

SUBJECT REGARDING HEAD RESTRAINT HEIGHT INCREASES DURING VEHICLE OPERATION.

SUBJECT REGARDING HEIGHT RESTRAINT HEIGHT INCREASES DURING VEHICLE OPERATION.

THIS BULLETIN IS BEING ISSUED TO REVISE THE FASTENER REQUIREMENTS FOR THE FRONT AND REAR BRAKE CALIPER BRACKET...

ABS PUMP RUNNING WHEN NOT NEEDED.

This informational bulletin provides information on wheel bearing P/N 13582664 being received new with visible rust and...

This informational bulletin provides information on wheel bearing P/N 13582664 being received new with visible rust and...

INFORMATION ON REFINISHING ALUMINUM WHEELS.

BROKEN CONSOLE OR STORAGE COMPARTMENT LID LATCH.