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Service bulletins for the 1999 Buick Century

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.

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

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
PI12172018-05-07. Service bulletin. POWER TRAIN. This preliminary bulletin provides a way to aid the technician in diagnosing transmission fluid leaking from the trans breather vent.
PIP53462017-08-15. Service bulletin. EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; POWER TRAIN. This Preliminary Information communication provides information to the technician about cooler line fittings that come with the 4T65E General Motors remanufactured transmission may not be the same as Original equipment manufacturer quick connect verses inverted flare. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
00704A2003-11-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE 4T65E AUTOMATIC TRANSMISSION MAY EXHIBIT A CONDITION OF A HARSH GARAGE SHIFT INTO REVERSE OR DRIVE ON A COLD START. *TT
0307300172003-08-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GRIND NOISE OR NO VEHICLE MOVEMENT WHEN SHIFTING INTO DRIVE OR REVERSE. *TT
990730030A2001-05-24. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. OWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN STANDING IN PARK ON A HILL OR SLOPE WITH THE ENGINE RUNNING AND THE PARKING BRAKE NOT APPLIED. *TT
0107300172001-05-23. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT. SOME OWNERS MAY COMMENT THAT THE TRANSMISSION RANGE SELECTOR LEVER IS DIFFICULT TO MOVE / SHIFT. *TT
0107300112001-05-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL). ON SOME VEHICLES, THE TRANSMISSION GEAR RANGE SELECTOR IS DIFFICULT TO SHIFT. *TT
9907300302000-03-01. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60 OR 4T60-E TRANSXALES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN IN PARK ON INCLINE. *TT
8371111999-01-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 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. *YC

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