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Service bulletins for the 2011 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.

2203 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
PI-0235-A2011-05-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. GM: THERE MAY BE A FUEL SMELL WHEN DRIVING THE VEHICLE. THERE MAY ALSO BE AN EXHAUST LEAK OR RATTLE NOISE. *RM UPDATED 9/10/12. *PE UPDATED 05/3/2013 *JS UPDATED 1/6/14. *PE UPDATED 2/3/16. *PE
PI-0161A2011-05-18. Service bulletin. PARKING BRAKE:CONVENTIONAL:MECHANICAL:LINKAGE AND CABLE. GM: THERE MAY BE A RUBBING/GRINDING NOISE WHEN MAKING FULL LEFT TURNS. IT IS MOST NOTICEABLE WHEN DRIVING UP AN INCLINE. *RM
PIE-01242011-05-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GM: THERE IS A TRANSMISSION FUEL LEAK FROM THE OIL PUMP AREA. *RM
05-09-40-002E2011-05-11. Service bulletin. SEAT BELTS:FRONT:WEBBING; SEAT BELTS:FRONT:RETRACTOR. GM: SERVICE BULLETIN EXPLAINING WHEN THE SAFETY BELTS ARE SUPPOSED TO LOCK. *RM UPDATED 12/6/11. *PE
SB-08-09-41-005A2011-05-10. Service bulletin. AIR BAGS:FRONTAL; AIR BAGS. GM: THE AIR BAG DOOR MAY BE WARPED OR NOT SIT FLUSH WITH THE INSTRUMENT PANEL/DASH. *RM
PI-02612011-05-10. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. GM: THE FUEL TANK MAY BE SLOW OR DIFFICULT TO FILL. *RM
PIT-4826A2011-05-09. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS; SERVICE BRAKES, AIR:DISC:PADS. GM: DURING BRAKE INSPECTIONS THERE HAVE BEEN SOME HAIRLINE CRACKS ON THE BRAKE PADS. *RM
PIT-50372011-05-07. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. GM: THERE MIGHT BE PULSATION, VIBRATION, OR DRAG IN THE STEERING WHEEL FROM THE BRAKES. THE BRAKE PEDAL PIVOT JOINT MAY BE PUTTING PRESSURE ON THE BRAKE SYSTEM OVER LONG DRIVES. *RM
PIT-4801B2011-03-30. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; ELECTRICAL SYSTEM:WIRING. GMC/CHEVROLET: CHECK TRAILER WIRING MESSAGE IN DIC POOR CONNECTIONS AT 7-WAY). THIS CONCERN COULD BE CAUSED BY A POOR CONNECTION AT THE 7-WAY TRAILER CONNECTOR. THERE ARE SEVERAL MANUFACTURERS OF 7-WAY (TRAILER SIDE) CONNECTORS AND NO INDUSTRY STANDARD SPECIFICATIONS FOR THESE CONNECTORS. MODELS AVALANCHE, SUBURBAN, TAHOE, SIERRA, SILVERADO, SIERRA DENALI, YUKON, YUKON XL. *PE
PIT-4730A2011-03-28. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SATURN: ADDITIONAL DIAGNOSTIC INFORMATION FOR U0140 OR U0073. VEHICLE MAY EXHIBITS SOME SYMPTOM(S) AS DOOR LOCKS CYCLE WHILE DRIVING; INTERMITTENT NO START; SERVICE STABILITRAK DIC MESSAGE; SPEEDOMETER AND TACHOMETER FREEZE WHILE DRIVING. *PE
PIP-48172011-03-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:WIRING. CADILLAC/CHEVROLET/GMC: (HYBRID) INFORMATION ON INTERNAL TRANSMISSION WIRING HARNESS REPAIRS. DIAGNOSTICS OF ANY ONE OF OR COMBINATION OF THE DTCS LISTED MAY LEAD TO A INTERNAL TRANSMISSION WIRING HARNESS CONCERN. TRANSMISSIONWIRING HARNESS IS FOUND TO BE ROOT CAUSE OF ANY ONE OF THE LISTED DTCS. DO NOT ATTEMPT TO REPAIR THE INTERNAL TRANSMISSION WIRING HARNESS. *PE
SB-10-02-33-0012011-03-28. Service bulletin. STEERING; STEERING:GEAR BOX:SHAFT PITMAN. BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE AND HUMMER: INFORMATION ON PITMAN ARM SHAFT SEAL SERVICE KIT. DO NOT REPLACE ENTIRE STEERING GEAR FOR PITMAN SEAL LEAK. TECHNICIANS HAVE BEEN REPLACING ENTIRE STEERING GEARS DUE TO NOT BEING ABLE TO SERVICE JUST LEAKING PITMAN SHAFT SEAL. *PE UPDATED 5/9/11. *PE
PIP-48112011-03-26. Service bulletin. FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. GMC/CHEVROLET: 6.6L DURAMX HP FUEL INJECTION PUMP TAC PARTS RESTRICTION. THIS PARTS RESTRICTION WILL ASSIST GM POWERTRAIN ENGINEERING WITH PRODUCT FEEDBACK. *PE
PIP-4492P2011-03-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SAAB: OIL CONSUMPTION AND/OR EXHAUST SMOKE-POSSIBLE PCV BAFFLE OR LIFTER CONCERN. UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. *PE UPDATED 3/21/11. *PE UPDATED 5/9/11. *PE UPDATED 5/25/11. *PE UPDATED 06/16/2011. *KB UPDATED A SECOND TIME ON 06/16/2011. *KB UPDATED 6/27/11. *PE
PIP-48192011-03-14. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING:ENGINE. CADILLAC/CHEVROLET/GMC: SES LIGHT DUE TO P0300-P0308 AND ENGINE MISFIRES; INSPECT PLUG WIRE. THIS MAY BE THE RESULT OF A LOOSE SPARK PLUG WIRE OF THE CYLINDER WITH CURRENT AND/OR HISTORY MISFIRES. *PE
PIT-50282011-03-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. PONTIAC/SATURN/BUICK/GMC/CHEVROLET/CADILLAC/HUMMER: VEHICLE START AND STALLS AFTER THEFT DETERRENT MODULE REPLACEMENT. MODEL YEARS 2006-2011. DOES NOT APPLY TO VEHICLES WITH KEYLESS ACCESS SYSTEM. *PE
PIE-00992011-03-11. Service bulletin. SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. CHEVROLET/GMC/CADILLAC: REAR AXLE PINION BEARING NOISE, GEAR NOISE AND/OR PINION BEARING FAILURE(8.6", 9.5", 10.5" AND 11.5") AAM AXLES. CUSTOMERS HEAR ROUGH GROWL OR GRATING TYPE SOUND COMING FROM THE REAR OF VEHICLE WHILE DRIVING. *PE UPDATED 6/6/11. *PE
SB-10-08-42-001A2011-03-08. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH. BUICK/CADILLAC/CHEVROLET/GMC/PONTIAC/SATURN: LOW BEAM HEADLAMP BULB DIAGNOSIS/REPLACEMENT (INSPECT BULB AND CONNECTOR). DOES NOT APPLY TO VEHICLES EQUIPPED WITH HIGH INTENSITY DISCHARGE (HID) LAMPS. DO NOT REPLACE THE ENTIRE HEADLAMP ASSEMBLY FOR THIS CONDITION. *PE
SB-102462011-03-01. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. CHEVROLET/GMC: RADIATOR HOSE CONTACT. BULLETIN PROVIDES SERVICE PROCEDURE TO INSTALL PROTECTIVE SLEEVE OVER RADIATOR HOSE ON CERTAIN MODEL VEHICLES. ON THESE VEHICLES, RADIATOR INLET HOSE MAY CONTACT THE EDGE OF FAN SHROUD, RESULTING IN A POSSIBLE COOLANT LEAK. *PE UPDATED 3/16/11. *PE
PIE-00432010-11-15. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES. CHEVROLET:GMC: ENGINEERING INFORMATION-FUEL TANK PRESSURE SENSOR, DTCS P0446, P0451 OR P0454 SET. GMC ENGINEERING IS ATTEMPTING TO DETERMINE THE ROOT CAUSE OF THE ABOVE CONCERN. *PE
PIT-4816A2010-03-15. Service bulletin. ELECTRICAL SYSTEM. CHEVROLET/GMC/CADILLAC: MULTIPLE ELECTRICAL CONCERNS WITH DTC C0900 - KEYWORDS BATTERY C/K CABLE CLOCK CRANK CYCLE DOOR DIMMING FLICKER GAGE GAUGE GMC HVAC INOP INOPERATIVE INSTRUMENT INTERMITTENT IPC LOCK NO PANEL POWER RADIO STALL START TEMPERATURE. *PE UPDATED 3/28/11. MODEL YRS 2007-2009. *PE UPDATED ON 6/27/2011 ADDED MODEL YRS 2010-2011. *KB MODEL YEARS ADDED 2012, 2013, AND 2014. UPDATED 12/2/2013*JS
SB-09-03-09-0012009-11-30. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY; SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:LEAF. CHEVROLET/GMC: A CLUNKING NOISE COMING FROM THE REAR OF THE VEHICLE. UPON FURTHER INVESTIGATION, THE TECHNICIAN MAY DIAGNOSE THE NOISE COMING FROM THE REAR SUSPENSION LEAF SPRING AREA. *PE UPDATED 6/30/2011. *KB
PIT-4808D2009-11-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM. CADILLAC/CHEVROLET/GMC: ON RARE OCCASIONS, A VEHICLE MAY STALL AND A SES LIGHT MAY SET ACCOMPANIED BY ONE OR ALL OF THE FOLLOWING CODES, P061B; P0AFA; P0BBD. IN MOST CASES THE VEHICLE WILL RESTART, BUT THE SES LAMP WILL REMAIN ILLUMINATED AND THE DIC MAY DISPLAY SERVICE HYBRID SYSTEM MESSAGE. *PE UPDATED 11/24/09. *PE UPDATED 3/15/10. *PE UPDATED ON 06/24/2011. *KB
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
PIT43662008-04-29. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. [CHECK TRAILER WIRING] MESSAGE DISPLAYED ON DIC. WITH RPO JL1. *NJ UPDATED 3/28/11. *PE

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