WenmarOpen by Wenmar Pro

Service bulletins for the 1999 Chevrolet Silverado

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
990308002A2000-06-01. Service bulletin. SUSPENSION:FRONT. FRONT SUSPENSION COIL SPRING NOISE. *TT
006010012000-06-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON A WHIRLING SOUND FROM THE LOWER REAR SIDE OF THE ENGINE, OCCURING AS THE ENGINE WARMS UP, BETWEEN 1500 AND 2000 ENGINE RPM ON VEHICLES WITHIN VARIOUS VIN BREAKPOINTS. *TT
0008640032000-05-31. Service bulletin. STRUCTURE:BODY:DOOR. SOME OWNERS MAY COMMENT ON A RATTLE NOISE WHEN CLOSING EITHER OF THE FRONT DOORS. THIS NOISE MAY BE MORE NOTICEABLE WHEN THE WINDOW IS IN THE DOWN POSITION. *TT
9908640292000-03-01. Service bulletin. STRUCTURE:BODY:DOOR. EXPERIENCING A RATTLE TYPE NOISE COMING FROM THE DRIVER'S OR PASSENGER'S FRONT SIDE DOOR. *TT
99027B2000-02-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. A CONDITION WITH THE AUXILIARY TRANSMISSION OIL COOLER OMITTED FROM CERTAIN VEHICLES EQUIPPED WITH HEAVY DUTY TRAILERING PACKAGE (Z82). *TT
99027B2000-01-12. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. GENERAL MOTORS HAS DECIDED THAT SOME VEHICLES MAY HAVE THE AUXILIARY TRANSMISSION OIL COOLER OMITTED. *TT
9908640272000-01-12. Service bulletin. STRUCTURE:BODY:DOOR. CUSTOMER MAY COMMENT THAT A HIGH EFFORT IS REQUIRED TO CLOSE EITHER FRONT DOOR. *TT
9903090031999-12-29. Service bulletin. SUSPENSION. VEHICLES WITH 4L60-E AUTOMATIC TRANSMISSIONS MAY EXHIBIT VIBRATION DURING ACCELERATION FROM 0 - 40 KM/H (0-25 MPH). *TT
9906040361999-11-26. Service bulletin. VEHICLE SPEED CONTROL:LINKAGES. SUBJECT ON VARIOUS DRIVEABILITY CONCERNS-SES OR OIL LEVEL LAMP ILLUMINATES, SPARK KNOCK, EXHAUST POPPING. *MJS
990271999-11-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GENERAL MOTORS HAS DECIDED THAT SOME VEHICLES EQUIPPED WITH 4.8L OR 5.3L ENGINES AND 4L60-E AUTOMATIC TRANSMISSIONS, AND VEHICLES EQUIPPED WITH 3.73 REAR AXLES AND ORDERED WITH THE HEAVY-DUTY TRAILERING PACKAGE MAY NOT HAVE INCLUDED THE MERCHANDISING-INTENT AUXILIARY TRANSMISSION OIL COOLER. *TT
99027A1999-10-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT REGARDING AUXILIARY TRANSMISSION OIL COOLER OMITTED. *TT
99027A1999-10-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. GENERAL MOTORS HAS DECIDED THAT SOME VEHICLES MAY NOT HAVE INCLUDED THE MERCHANDISING-INTENT AUXILIARY TRANSMISSION OIL COOLER (KNP). *TT
990271999-09-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. GENERAL MOTORS HAS DECIDED THAT SOME VEHICLES MAY NOT HAVE INCLUDED THE MERCHANDISING-INTENT AUXILIARY TRANSMISSION OIL COOLER (KNP). *TT
9903090021999-09-29. Service bulletin. SUSPENSION. EXPERIENCING A VIBRATION AND LATERAL SHAKE ON SMOOTH ROAD SURFACES. *TT
990730010A1999-09-20. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. A DRIVELINE VIBRATION / GROWL NOISE. *TT
9908480011999-08-27. Service bulletin. VISIBILITY:WINDSHIELD. CONCERNS WITH WIND NOISE FROM REAR QUARTER WINDOW. *TT
9908500051999-08-27. Service bulletin. SEATS. EXPERIENCING RATTLE NOISE AT REAR SEAT UPPER ATTACHMENT WHERE THE SEAT CONNECTS WITH THE REAR CAB WALL. *TT
9908500041999-08-27. Service bulletin. SEATS. SUBJECT REGARDING SEAT NOISE / VIBRATION - CREAK IN FRONT SEAT CUSHION, RATTLE / VIBRATION IN 40% FRONT SEAT, JINGLE IN 20% FOLDING CENTER SEAT. *TT
990091999-08-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). VOLUNTARY EMISSION CAMPAIGN REGARDING VEHICLES BUILT WITH THE WRONG EXHAUST GAS RECIRCULATION VALVE. *TT
990091999-08-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). SUBJECT REGARDING EXHAUST GAS RECIRCULATION VALVE (EGR) MISBUILDS. *TT
9904210031999-08-06. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). SOME OWNERS MAY COMMENT ABOUT A SLIPPING TYPE CONDITION AT THE FRONT WHEELS WHILE THE VEHICLE IS IN FOUR WHEEL DRIVE (4WD). *TT
9907300091999-08-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT PERTAINING TO HARSH 1 - 2 AND 3 - 2 SHIFTS. *TT
9907300101999-08-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DRIVELINE VIBRATION / GROWL NOISE. *TT
99081100041999-08-05. Service bulletin. STRUCTURE:BODY. SOME OWNERS MAY COMPLAIN OF SQUEAK OR RATTLE NOISE FROM FRONT HINGE PILLAR / INSTRUMENT PANEL AREA. *TT
991091999-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). RECALL CAMPAIGN REGARDING EXHAUST GAS RECIRCULATION VALVE MISBUILDS. *TT

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