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Service bulletins for the 1998 GMC Sonoma

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.

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

By type

By component

By trouble code

Bulletins, newest first
PIT3227H2017-08-15. Service bulletin. STRUCTURE:BODY:TAILGATE. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIT3227J2017-08-15. Service bulletin. STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS; STRUCTURE:BODY:TAILGATE. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIP5340A2017-03-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT AFTER A TRANSMISSION OR TORQUE CONVERTER REPLACEMENT THE VEHICLE MAY HAVE A HARSH 1-2 UPSHIFT AND THE CHECK ENGINE LIGHT OR SERVICE ENGINE SOON INDICATOR IS ILLUMINATED. IF YOU HAVE DUPLICATED THE CUSTOMER’S CONCERN AND FOUND DIAGNOSTIC TROUBLE CODE P0894 OR P1870 SET IN THE TRANSMISSION CONTROL MODULE PLEASE CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE CENTER.
41142006-10-23. Service bulletin. STRUCTURE:BODY. CLUNK NOISE FELT THROUGH THE FLOOR PAN. *KB
37772006-01-06. Service bulletin. ELECTRICAL SYSTEM. FUEL AND TEMPERATURE GAUGE INOPERATIVE, LOW FUEL AND BATTERY LIGHT ON, PRNDL INOPERATIVE. *TT
572005-09-14. Service bulletin. STRUCTURE:BODY. WATER LEAK IN FRONT FLOOR CARPET AREA. GM TECH LINK. *TT
33002005-04-21. Service bulletin. POWER TRAIN:DRIVELINE. 4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH
0406030022005-03-11. Service bulletin. ENGINE AND ENGINE COOLING. DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY. *EH
32272005-01-31. Service bulletin. STRUCTURE:BODY:TAILGATE. TAILGATE CABLE SLACK. THIS INCLUDES 1998-2006 CHEVROLET AND GMC FULL AND MID SIZE TRUCKS. *EH UPDATED. *KB
0406050012005-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0420 SET. *TT
30812004-11-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT AND P0300 WHEN TOWING, CRUISING UPHILL OR ON HARD ACCELERATION. *TT
3176A2004-11-09. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HEAT COMING FROM VENTS WITH HVAC OFF. *TT
31302004-11-04. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT CLUSTER PRNDL INOPERATIVE AND OR BATTERY LIGHT ON. *SC
3031A2004-10-14. Service bulletin. ELECTRICAL SYSTEM. DRIVER INFORMATION CENTER (DIC) STAYS IN BULB CHECK. *TT
3046A2004-09-27. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL. *TT
00502B2004-07-15. Service bulletin. EXTERIOR LIGHTING. DAYTIME RUNNING LAMPS (DRLS) TURN OFF TEMPORARILY WHILE THE TURN SIGNALS ARE ACTIVATED. *TT
990730016A2004-07-13. Service bulletin. POWER TRAIN. DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT
012252004-07-08. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE COOLANT LEAK AT INTAKE GASKET. * MJ
015992004-06-04. Service bulletin. POWER TRAIN. 4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT
017272004-04-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.3 L35 LU3 RATTLE OR BUZZ NOISE FROM ENGINE. SIT BULLETIN 1457619. *TT
0307300562004-03-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION. *TT
010730002C2003-12-04. Service bulletin. POWER TRAIN. MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE. *TT
030601024A2003-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. *TT
01136C2003-11-22. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. CLUNK NOISE FELT THROUGH FLOOR PAN. *TT
020421005A2003-04-15. Service bulletin. POWER TRAIN. SLIPS IN 4-WHEEL DRIVE, NOISE, VIBRATION, LEAKS, HOT ODOR. *TT

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