Service bulletins for the 1998 GMC T-Series
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.
70 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 111000 | 2001-03-22. Service bulletin. ELECTRICAL SYSTEM. INFORMATION ON THE PULLING THE NEGATIVE BATTERY CABLE BEFORE PULLING THE DRL RELAY WHEN PERFORMING CAMPAIGN 00043 DRL NONCOMPLIANCE ON 1998 GM AND CHEVROLET T-PICKUP AND UTILITIES WITH THE ZR2 HIGH RIDER PERFORMANCE PACKAGE. *TT |
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| 00148 | 2001-02-25. Service bulletin. UNKNOWN OR OTHER. SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE, OR HARD START DUE TO A DEPOSIT BUILD-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR (SCPI) POPPET VALVE(S). THE DEPOSIT BUILD-UP MAY CAUSE INJECTOR POPPETS TO STICK CLOSED. *TT |
| 98053 | 2000-12-27. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. CUSTOMER SATISFACTION CAMPAIGN FOR PICKUP AND UTILITY MODEL VEHICLES BUILT WITH LOW LEVELS OF REAR AXLE OIL. *TT |
| 877169 | 2000-12-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). INFORMATION PERTAINING TO NEW TRANSMISSION CALIBRATIONS. *TT |
| 866503 | 2000-12-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SOME VEHICLES MAY SET A FALSE OBD II WITH DIAGNOSTIC TROUBLE CODE P1404. *TT |
| 867117 | 2000-12-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. BRIEF INFORMATION REGARDING RUSTY TRANSMISSION FLUID LEVEL INDICATOR. *TT |
| 000522007 | 2000-12-05. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS. SOME CUSTOMERS MAY COMMENT ON REDUCED BRAKE PAD / LINING LIFE. *TT |
| 000851001 | 2000-12-05. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. SOME CUSTOMERS MAY COMMENT THAT THE BLACK PLASTIC HOUSING AROUND THE OUTSIDE REAR VIEW MIRROR TURNS CHALKY OR IS DULL IN COLOR. *TT |
| 000863003A | 2000-10-13. Service bulletin. SUSPENSION:FRONT:SPRINGS:TORSION BAR. SOME DRIVERS MAY COMMEND ABOUT NOISE COMING FROM THE CAB PIVOT TORSION BAR AREA DURING NORMAL OPERATING CONDITIONS OR THAT THE CAB IS DIFFICULT TO OPEN. *TT |
| 000604014 | 2000-10-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON HARD, NO, OR SLOW START, BACKFIRE OR KICKBACK DURING CRANK / START, GRINDING OR UNUSUAL NOISES DURING CRANK, DIAGNOSTIC TROUBLE CODE P0338. *TT |
| 99066B | 2000-07-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START. **MR |
| 99066A | 2000-06-06. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. SOME VEHICLES MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR (SCPI) POPPET VALVE(S). *TT |
| 000863002 | 2000-05-31. Service bulletin. STRUCTURE:BODY. SOME DRIVERS MAY COMMENT ON AN IMPROPER FIT / APPEARANCE BETWEEN THE CAB AND THE FRONT FENDER EXTENSIONS. *TT |
| 99066A | 2000-04-10. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME VEHICLES THAT ARE REGISTERED IN CALIFORNIA, EQUIPPED WITH A 4.3L, 5.0L OR 5.7L ENGINE AND CALIFORNIA EMISSIONS, MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START. *TT |
| 990940004 | 2000-04-07. Service bulletin. SEATS. GENERAL MOTORS BEGAN PROVIDING CHILD RESTRAIN SEAT TOP TETHER HARDWARE PACKAGES TO CUSTOMERS IN THE UNITED STATES WHO REQUESTED THEM. *TT |
| 000604003 | 2000-04-06. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME CUSTOMERS MAY COMMENT ON ROUGH IDLE AFTER START UP, AND / OR A SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED. *TT |
| 99078 | 2000-04-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CERTAIN VEHICLES EQUIPPED WITH DIESEL ENGINES MAY EXHIBIT ENGINE AIR INDUCTION CONTAMINATION. *TT |
| 837110A | 2000-04-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. PARK/NEUTRAL POSITION SWITCH CONNECTOR CANNOT BE REMOVED. YD |
| 876507A | 2000-04-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. ROUGH IDLE AFTER START, WHEN VEHICLE HAS SAT OVERNIGHT AND POPPETS STICKING. |
| 99066 | 2000-01-14. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. SPECIAL POLICY ADJUSTMENT COVERING THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR (SCPI) FAILURE CONDITION. *TT |
| 990730004A | 2000-01-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. A CONDITION WITH A RUSTY TRANSMISSION FLUID LEVEL INDICATOR / TRANSMISSION OIL FILLER TUBE. *TT |
| 990601020 | 2000-01-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ABOUT A KNOCKING OR GRINDING NOISE WITH THE ENGINE RUNNING. *TT |
| 990601020 | 2000-01-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. VEHICLES MAY EXHIBIT A KNOCKING OR GRINDING NOISE WITH THE ENGINE RUNNING. *TT |
| 990850019 | 2000-01-11. Service bulletin. SEATS:FRONT ASSEMBLY:POWER ADJUST. CONCERNS THAT THE DRIVER OR PASSENGER FRONT POWER SEAT FORWARD AND REARWARD FUNCTION IS INOPERATIVE. *TT |
| 990604037 | 1999-11-26. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE. SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS. *MJS |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.