Service bulletins for the 2001 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.
49 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 020523001A | 2002-10-09. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS. SOME CUSTOMERS AND DEALERS MAY COMMENT ON ACCELERATED UNEVEN BRAKE PAD WEAR ON SOME VEHICLE WITH FOUR-PISTON FIXED CALIPER REAR DISC BRAKES. *TT |
|---|---|
| 020601024 | 2002-10-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. ON CERTAIN VEHICLES, SUCH AS THE CHEVROLET AND GMC WT 5500 MEDIUM DUTY TILT CAB MODELS, THE ENGINES MAY EXPERIENCE ROCKER ARM DAMAGE OR ROCKER BRIDGE DAMAGE FOLLOWING OVERHAUL OF THE CYLINDER HEAD IF THE VALVE BRIDGE STUD INSTALLED DEPTH IS INCORRECT. *TT |
| 020604041 | 2002-10-04. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. DIAGNOSTIC HINTS / TROUBLESHOOTING GUIDE FOR DENSO COMMON RAIL FUEL SYSTEM FOR CERTAIN MEDIUM DUTY TILT CAB AND COMMERCIAL MODELS. *TT |
| 020603002 | 2002-06-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. *JG |
| 010604049 | 2002-05-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. SUBJECT REGARDING WHITE SMOKE DURING START UP,INCLUDES 1998-2002 CHEVROLET AND GMC WT 5500 SERIES MEDIUM DUTY TILT CAB MODELS. *SLC |
| 020603002 | 2002-05-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. *SLC |
| 020137002 | 2002-04-02. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. SUBJECT REGARDING SERVICE DIAGNOSIS/RECOMMENDATIONS FOR INOPERATIVE AIR CONDITIONING SYSTEMS. *TT |
| 020604006 | 2002-04-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON SERVICE ENGINE SOON LAMP ON, MALFUNCTION INDICATOR LAMP ILLUMINATIONS INTERMITTENTLY, DIAGNOSTIC TROUBLE CODE SET, BLOWN FUSES, AND ENGINE WILL NOT START. *TT |
| 020232004 | 2002-04-02. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM. SUBJECT REGARDING STEERING GEAR GREASE SEEPAGE FROM AROUND SECTOR (OUTPUT) SHAFT (INSTALL NEW SECTOR (OUTPUT) SHAFT SEALS).*JG |
| 020523001 | 2002-03-25. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS. SOME CUSTOMERS AND DEALERS MAY COMMENT ON ACCELERATED UNEVEN BRAKE PAD WEAR ON F6-7 MEDIUM DUTY TILT CAB MODELS AND H6-7 CONVENTIONAL MEDIUM DUTY MODELS. *TT |
| 000601023A | 2002-03-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION USED WHEN DIAGNOSING NOISE CONDITIONS SUCH AS ENGINE RATTLE NOISE, SPARK KNOCK AT 2000 - 2500 RPM RANGE, UNDER A MODERATE TO HEAVY LOAD WITH A WARMED UP ENGINE. *TT |
| 000604003A | 2002-03-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON ROUGH IDLE AFTER START UP, ESPECIALLY AFTER SETTING OVERNIGHT. *TT |
| 010604037B | 2002-02-25. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. INFORMATION REGARDING FUEL TRANSFER PUMP INOPERATIVE. *YH |
| 010420005 | 2002-02-15. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL. INFORMATION REGARDING CORRECT VEHICLE APPLICATION FOR EATON. 1990-2002 CHEVROLET AND GMC C-SERIES CONVENTIONAL AND T-SERIES TILT CAB MEDIUM DUTY MODELS. *YH |
| 010602011 | 2002-02-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION REGARDING CHEVROLET AND GMC 6-7F MEDIUM DUTY TILT CAB MODELS WITH ISUZU DIESEL ENGINE, ENGINE OVERHEATS, TEMPERATURE GAUGE READS HOT, AUDIBLE WARNING ALARM SOUNDS, AND CHECK GAUGE LAMP ON. *YH |
| 010856005 | 2001-11-19. Service bulletin. UNKNOWN OR OTHER. SUBJECT REGARDING REVISED THEFT DETERRENT DIAGNOSTIC INFORMATION FOR VARIOUS MODELS INCLUDING CHEVROLET TRUCK S SERIES 2002. *ET |
| 010863001 | 2001-11-19. Service bulletin. STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS. SUBJECT ON HOOD HINGE RATTLE COMING FROM EITHER OR BOTH FRONT CORNERS OF THE INSTRUMENT PANEL NEAR THE HOOD HINGE AREAS FOR 1995 - 2002 PICKUP AND UTILITY MODELS. *ET |
| 010604039 | 2001-11-01. Service bulletin. ELECTRICAL SYSTEM. SOME VEHICLES MAY EXHIBIT A SERVICE ENGINE SOON LAMP ON, MALFUNCTION INDICATOR LAMP ILLUMINATES INTERMITTENTLY, ANTI-LOCK BRAKE SYSTEM WARNING LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODES SET, AND / OR BLOWN FUSES. *TT |
| 040601 | 2001-10-30. Service bulletin. UNKNOWN OR OTHER. INFORMATION REGARDING REPAIR VERSUS REPLACE GUIDELINES FOR VEHICLES WITH MANUAL TRANSMISSIONS. *SLC |
| 010604037 | 2001-10-29. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. TECHNICAL SERVICE BULLETIN REGARDING FUEL TRANSFER PUMP INOPERATIVE. *TT |
| 160201 | 2001-05-21. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. THIS MESSAGE CONCERNS CERTAIN 1997 THROUGH 2001 MEDIUM DUTY TRUCKS WITH SPICER SEVEN SPEED MANUAL TRANSMISSIONS EXHIBITING HEAVY VIBRATION THAT INCREASES WITH SPEED AND / OR AN OIL LEAK AND / OR A CRACKED ENGINE BLOCK. *TT |
| 010604009 | 2001-05-17. Service bulletin. UNKNOWN OR OTHER. ON CERTAIN MODELS INCLUDING MY2000 - 2001 CHEVROLET AND GMC WT5500 SERIES, THE SERVICE ENGINE SOON (SES) INDICATOR IS ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE 0226 SET. *TT |
| 071200 | 2001-03-27. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:PUMP. CUSTOMERS OR DEALERS MAY COMPLAIN ABOUT POWER STEERING PUMP NOISE OR WHINE WHEN ENGINE IS COLD. *TT |
| 00076 | 2001-03-26. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK. SOME VEHICLES EQUIPPED WITH BENDIX ABS AIR BRAKES HAVE A CONDITION IN WHICH THE VEHICLE MAY HAVE UNWANTED TEMPORARY ABS ACTIVATION AT LOW SPEEDS. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.