WenmarOpen by Wenmar Pro

Service bulletins for the 2008 GMC Sierra

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.

1655 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SB-10-06-01-0082011-03-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CADILLAC/CHEVROLET/GMC/PONTIAC: ENGINE OIL CONSUMPTION ON ALUMINUM BLOCK ENGINES WITH ACTIVE FUEL MANAGEMENT (AFM) (INSTALL AFM OIL DEFLECTOR AND CLEAN CARBON FROM CYLINDER). CAUSED BY AN UNCOVERED AFM VALVE THAT SPRAYS OIL ON THE BOTTOM OF THE CYLINDERS WHEN THE VEHICLE IS IN FOUR CYLINDER MODE. *PE UPDATED 5/9/11. *PE
SB-02-06-04-03712011-03-04. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:ENGINE. CHEVROLET/GMC: CHECK ENGINE LIGHT ON, FUEL TANK HARD TO FILL, DTCS P0442, P0446, P0455 OR P0449 SET (REPLACE EVAPORATIVE EMISSION (EVAP) VENT VALVE SOLENOID ASSEMBLY AND ADD/RELOCATE FILETER BOX USING SERVICE KIT). *PE
SB-08-06-04-054A2010-11-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE. CHEVROLET/GMC: SNOW OR ICE INGESTION INTO AIR CLEANER ELEMENT, MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED, ENGINE POWER IS REDUCED MESSAGE DISPLAYED, DTC P0101 SET (PERFORM REPAIR AS OUTLINED). *PE
PIP-46642010-06-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. GMC/CHEVROLET: DTC P0101 WITH NON GM AIR FILTER. MAY ENCOUNTER CONCERN OF REDUCED POWER AND SES LIGHT ON. DIAGNOSTICS MAY REVEAL MAF (MASS AIR FLOW) SENSOR DTC P0101. IF DIAGNOSTICS WERE INCONCLUSIVE ITS POSSIBLE DTC P0101 IS SETTING DUE TO A NON GM AIR FILTER. NON GM AIR FILTERS HAVE SHOWN A SLIGHTLY HIGHER THAN NORMAL MAF READING. *PE
PIP-46602010-06-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. GMC/CHEVROLET: ENGINE COOLANT SENSOR DTCS P011A, P2184, AND P2185. DEALER MAY ENCOUNTER CONCERN OF SES LIGHT ON OR DTCS P011A, P2184 AND P2185. DIESEL ENGINES HAVE 2 ECT (ENGINE COOLANT TEMPERATURE) SENSORS. *PE
PIP-46862010-03-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:ENGINE. CHEVROLET/CADILLAC/GMC: HYBRID DRIVEABILITY OR CUSTOMER CONCERNS OF FLARE, SLIP, STALL AT A STOP, SURGE, LACK OF POWER, POOR FUEL ECONOMY, REDUCED EV RANGE/LIMITED ELECTRIC PROPULSION, DTC P061B AFTER CAMPAIGN 09102B OR DTC P061B PRIOR TO CAMPAIGN. *PE UPDATED 3/14/11. *PE UPDATED 12/4/2013 *JS
SB- 092852010-03-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GMC CHEVROLET SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SERVICE ENGINE SOON LIGHT ILLUMINATED-EXHAUST GAS RECIRCULATION (EGR) COOLER PLUGGING PREVENTION. *PE
SB-09-06-01-0062009-11-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GMC/CADILLAC/CHEVROLET: CHECK ENGINE LIGHT ON, ENGINE MISFIRE, HARD START, ROUGH IDLE, HESITATION, LOSS OF POWER, POOR PERFORMANCE, NOISE, DTCS P0300, P0301, P0302,P0303, P0304, P0305, P0306, P0307, P0308 SET (REPLACE ENGINE). *PE
PIT-4846A2009-09-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; LATCHES/LOCKS/LINKAGES:DOORS:LATCH; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE. CADILLAC/CHEVROLET/GMC: LOCATIONS OF HIGH SPEED GMLAN WIRING CONCERNS. GAUGES INOPERATIVE, NO CRANK, HARSH TRANSMISSION SHIFTING, NO TRANSMISSION SHIFTING, DOOR LOCKS CYCLING AND INDICATORS ON. *PE UPDATED 11/17/10. *PE
PIP-46292009-08-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. CHEVROLET/GMC: DIESEL ENGINE TURBO DTC P2563 OR P003A. MAY ENCOUNTER A CONCERN OF SES LIGHT, REDUCED POWER, LOW POWER. *PE
TB-09-06-04-0242009-08-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC INFORMATION ON MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH DTCS P0442,P0446, P0451, P0452, P0453, P0454, P0455 AND REPLACEMENT OF FUEL TANK PRESSURE (FTP) SENSOR/MODULE. *PE
TB-09-06-04-0222009-08-04. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL; ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM:WIRING. GENERAL MOTORS: MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED, INTERMITTENT DTC P0191, SLOW FUEL RAIL PRESSURE (FRP) DECAY, WIRING HARNESS CONNECTIONS, VOLTAGE FLUCTUATIONS/INTERRUPTIONS (FOLLOW CORRECTION INFORMATION BELOW). *PE UPDATED 11/23/09. *PE
SB-07-06-04-019A2009-06-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE. GENERAL MOTORS: INTERMITTENT MIL/SES/ DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-08 GM PASSENGERS CARS/LIGHT DUTY TRUCKS (INCL. SATURNS). *PE UPDATED 11/5/10. *PE UPDATED 4/4/11. *PE UPDATED 2/3/16. *PE
PIP-4372B2008-11-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. GMC: OIL LEAK AT TURBOCHARGER AIR INTAKE PIPE. INITIAL INSPECTION MA REVEAL A LEAK THAT LOOKS AS IT IS COMING FROM THE REAR OF THE ENGINE. *PE
08-04-19-0042008-11-20. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. GMC: CORRECT FRONT AXLE VENT HOSE ROUTING. THE FRONT AXLE VENT HOSE IS MOUNTED IN THE LEFT SIDE OF THE ENGINE COMPARTMENT, AND MAY NOT BE CORRECTLY ROUTED. *PE UPDATED ON 5/1/2012. *KB
PIP-43802008-09-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. GMC: EGR LOW FLOW DTC P0401. VEHICLES THAT ARE EQUIPPED WITH THE 6.6L DIESEL ENGINE RPO CODE LM. *PE
08-06-03-0072008-09-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GMC: NO START, NO CRANK, INTERMITTENT ELECTRICAL OPERATIONS (CHECK FOR POOR CONNECTIONS WITHIN ENGINE WIRING HARNESS JUNCTION BLOCK). *PE
07-06-04-033A2008-08-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. LMM, CLEAN EXHAUST FILTER LIGHT ILLUMINATED, MIL/SES LIGHT ILLUMINATED WITH DTC(S) P244B AND/OR P2463 SET (PERFORM ALL SI DIAGNOSTICS FOR DTC(S) SET, IF NTF, REPLACE AIR FILTER). VEHICLES WITH 6.6L DURAMAX DIESEL ENGINE. *PE
SB-08-07-30-0212008-08-28. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). LOSS OF HIGH SPEED GMLAN COMMUNICATIONS, INTERMITTENT NO CRANK, IPC GAUGE FLUCTUATION, INTERMITTENT DOOR LOCK CYCLING, TRANSMISSION MAY NOT SHIFT, DTCS U0073, U0100, U0101, U0102, U0121, U0140 SET (REPAIR BACKED OUT TERMINAL IN TRANSMISSION HARNESS CONNECTOR). VEHICLES WITH 6 SPEED 6L80 (RPO MYC), 6L90 (RPO MYD) OR HYBRID TWO MODE 2M70 AUTOMATIC. INCLUDING 2008 TAHOE AND YUKON HYBRID MODELS. *PE UPDATED 3/28/11. INCLUDING SIERRA, SILVERADO AND ESCALADE HYBRIDS. *PE
081792008-08-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. SERVICE UPDATE FOR INVENTORY AND CUSTOMER VEHICLES; TURBOCHARGER VANE POSITION SENSOR - REPLACE; EXPIRES WITH 5 YEAR/100,000 MILE (160,000 KM) POWERTRAIN WARRANTY. *PE
08-07-30-0212008-08-07. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE. LOSS OF HIGH SPEED GMLAN COMMUNICATIONS, INTERMITTENT NO CRANK, IPC GAUGE FLUCTUATION, INTERMITTENT DOOR LOCK CYCLING, TRANSMISSION MAY NOT SHIFT, DTCS U0073, U0100, U0101, U0102, 70140 (REPAIR BACKED OUT TERMINAL IN TRANSMISSION HARNESS CONNECTOR). *PE
081422008-07-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CHEVROLET SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ECM EEPROM - REPROGRAM ECM. ALL 2007 AND CERTAIN 2008 CHEVEROLET SILVERADO AND EXPRESS AND GMC SIERRA AND SAVANA EQUIPPED WITH 6.6L DURAMAX VA DIESEL (RPO LMM - VIN 6) ENGINE. CSC WAS RECEIVED. *PE UPDATED 5/5/09. CSC LETTER WAS RECEIVED. *PE
08-01-38-0022008-07-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. BLOWER MOTOR INOPERATIVE (REPLACE BLOWER MOTOR) FOR EXTENDED AND CREW CAB MODELS ONLY. *PE
PIP43482008-05-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. DURAMAX DIESEL DPF REGENERATION CHANGES - VEHICLES EQUIPPED WITH THE 6.6 DURAMAX DIESEL ENGINE RPO CODE LMM. *NJ
PIP33432008-04-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). POSSIBLE ENGINE OIL LEAK DUE TO PCV FREEZE-UP, EQUIPPED WITH THE 4.8, 5.3, 6.0, AND 6.2 V-8 ENGINES. *NJ

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