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Service bulletin 99077

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id6089160
Published by NHTSA2000-01-13
Manufacturer's number99077
Manufacturer's date1999-11-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

SUBJECT REGARDING VOLUNTARY EMISSION RECALL CAMPAIGN - EVAPORATIVE EMISSION SYSTEM ODB-II DIAGNOSTIC CALIBRATION - REFLASH PCM. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Automatic transmission, Transmission control module

Vehicles listed
BUICK CENTURY2000
BUICK REGAL2000
CHEVROLET MONTE CARLO2000

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
PIP53462017-08-15. Service bulletin. 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. 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. GRIND NOISE OR NO VEHICLE MOVEMENT WHEN SHIFTING INTO DRIVE OR REVERSE. *TT
0207490012002-10-10. Service bulletin. SOME CUSTOMERS MAY COMMENT THAT THERE IS A HOLE IN THE SHIFTER BOOT IN VEHICLES WITH FLOOR SHIFTS. *TT
010730032B2002-03-25. Service bulletin. SOME OWNERS MAY COMMENT ON A TRANSMISSION OIL LEAK. *TT UPDATED *EH
0406012001-10-30. Service bulletin. SOME VEHICLES MAY EXPERIENCE NO FORWARD, DELAYED FORWARD, OR THE TRANSMISSION MAY LOCK UP IN REVERSE INTERMITTENTLY, SOME VEHICLES WILL NOT MOVE WHEN PLACED IN REVERSE INTERMITTENTLY. *SLC
0107300172001-05-23. Service bulletin. SOME OWNERS MAY COMMENT THAT THE TRANSMISSION RANGE SELECTOR LEVER IS DIFFICULT TO MOVE / SHIFT. *TT
2602012001-05-21. Service bulletin. SOME VEHICLES EQUIPPED WITH THE 4T65E TRANSMISSION MAY EXPERIENCE A CONDITION WHERE THE FOURTH CLUTCH IS BURNT UP. *TT
0101012001-03-26. Service bulletin. GM POWERTRAIN IS CURRENTLY SEEKING INFORMATION REGARDING 4T65E TRANSMISSIONS WITH A WHINE NOISE IN PARK AND NEUTRAL. *TT
2102012001-03-19. Service bulletin. SUBJECT REGARDING AUTOMATIC TRANSMISSION CODES P0741, P0742 - REQUEST FOR INFORMATION. *TT