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Service bulletins for the 1999 Chevrolet Tahoe

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.

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

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By component

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Bulletins, newest first
010856002A2001-10-26. Service bulletin. ELECTRICAL SYSTEM. SOME VEHICLES MAY EXHIBIT A SECURITY LAMP ILLUMINATED ON THE INSTRUMENT PANEL, ENGINE STALL, NO START CONDITION, AND DIAGNOSTIC TROUBLE CODE B2960. *TT
0108560022001-06-28. Service bulletin. UNKNOWN OR OTHER. SOME CUSTOMERS MAY HAVE CONCERNS WITH THE SECURITY LAMP ILLUMINATING WHILE DRIVING; THE SECURITY LAMP MAY BE ON OR OFF; THE ENGINE CRANKS BUT WILL NOT START AND THE SECURITY LAMP IS FLASHING; AND / OR THE ENGINE STARTS THEN STALLS AND THE SECURITY LAMP IS FLASHING. *TT
001522001-03-26. Service bulletin. SEAT BELTS. CAMPAIGN PARTS BULLETIN REGARDING FMVSS NECK EXTENSION REQUIREMENTS. *TT
000442001-03-26. Service bulletin. SEAT BELTS. SUBJECT REGARDING FMVSS NECK EXTENSION REQUIREMENTS. *TT
0008660012000-04-06. Service bulletin. UNKNOWN OR OTHER. SUBJECT REGARDING WATER INTRUSION INTO REAR COMPARTMENT. *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
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
6604210021999-08-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. CUSTOMER MAY COMPLAIN THAT THE 4WD IS INOPERATIVE. *TT

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