2012 GMC SIERRA 1500 Manufacturer communications & TSBs.Page 6
Original record summaries, dates and identifiers for this model-year. Records 501–600 of 891, ordered newest first. Dated records on this page: Dec 8, 2014–Apr 12, 2016.
Read the applicability before drawing a conclusion.
This archive includes service bulletins, warranty notices, software instructions and other communications. Records may repeat or supersede earlier instructions. A model-year association is not proof that a document covers every engine, trim, VIN or reported symptom, or that a repair is free.
NHTSA download snapshot: Sep 28, 2026. These are communication associations for this vehicle, not unique defects. How records are joined and counted.
Apr 12, 2016Service Bulletin/Repair Instructions
SB-09-03-09-001D
NHTSA communication ID: 10078480
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO RE-TORQUE THE JOINTS OF THE REAR LEAF SPRING ASSEMBLY TO CORRECT A CUSTOMER CONCERN OF A CLUNKING NOISE COMING FROM THE REAR OF THE VEHICLE.
Source components: SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE · SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON A NORMAL CONDITION ON TEMPERED GLASS OF SPOTS SHOWING ON THE REAR AND SIDE WINDOWS WHEN THE VEHICLE IS IN THE SUNLIGHT.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN, IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE.
Source components: ELECTRICAL SYSTEM · EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM).
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION ON THE DRIVE MOTOR GENERATOR CONTROL MODULE PART RESTRICTION. DEALER WILL NEED TO CALL GM TECHNICAL ASSISTANCE CENTER FOR FURTHER INSTRUCTIONS.
Source components: ELECTRICAL SYSTEM · POWER TRAIN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION ON THE DRIVE MOTOR GENERATOR CONTROL MODULE PART RESTRICTION. DEALER WILL NEED TO CALL GM TECHNICAL ASSISTANCE CENTER FOR FURTHER INSTRUCTIONS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS.
Source components: ELECTRICAL SYSTEM · STRUCTURE:BODY · VISIBILITY:SUN/MOON ROOF ASSEMBLY.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE PART RESTRICTION FOR THE ACCESSORY DC POWER CONTROL MODULE AND THE SEAL KIT HAS ENDED.
Source components: ELECTRICAL SYSTEM · POWER TRAIN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
"THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE STEERING GEAR FOR A NORMAL CONDITION OF GREASE OR SEALANT ON EXTERIOR CASE OF GEAR DUE TO THE MANUFACTURING PROCESS."
Source components: STEERING:ELECTRIC POWER ASSIST SYSTEM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION ON POOR RADIO HANDS-FREE VOICE RECOGNITION PERFORMANCE OR SOUND QUALITY AFTER THE ONSTAR UPGRADE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
14520A - SPECIAL COVERAGE (REVISED TO INCLUDE 2007, AND 2010-2013 MODEL YEAR CHEVROLET SILVERADO AND GMC SIERRA LIGHT DUTY TRUCKS, ALONG WITH EXPANDING COVERAGE TO CERTAIN U.S. STATES). SOME 2008-2009 MODEL YEAR CHEVROLET SILVERADO AND GMC SIERRA LIGHT-DUTY VEHICLES REGISTERED IN CANADA OR 2007, AND 2010-2013 MODEL YEAR CHEVROLET SILVERADO AND GMC SIERRA LIGHT DUTY VEHICLES REGISTERED IN OR PREVIOUSLY REGISTERED IN MAINE, NEW HAMPSHIRE, NEW YORK, AND VERMONT OR IN THE CANADIAN PROVINCES NEW BRUNSWICK, NEWFOUNDLAND, NOVA SCOTIA, PRINCE EDWARD ISLAND, ONTARIO, AND QUEBEC MAY DEVELOP A FRACTURED MIDDLE-LEAF SPRING IN THE THREE-LEAF REAR-SUSPENSION SPRING ASSEMBLY, FORWARD OR REARWARD OF THE JOINT TO THE REAR AXLE. THIS CONDITION MAY RESULT IN NOISE, RIDE-HEIGHT DIFFERENCE, CONTACT WITH A REAR TIRE, AND/OR DAMAGE TO OTHER COMPONENTS UNDER THE VEHICLE. VEHICLES WITH THIS CONDITION WILL HAVE REDUCED LOAD-CARRYING CAPACITY. IF THE CONDITION OCCURS WITHIN THE TERM LIMITS, DEALERS WILL REPLACE THE REAR SPRINGS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on the proper mounting paste to apply to tires when mounting and balancing them to prevent conditions like Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel)
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides Information Regarding Servicing Components Located Near SIR Components and how to properly disable the SIR system for repairs at or near
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE AN OUTSIDE AIR TEMPERATURE INOPERATIVE. TO PERFORM AN INSTANT UPDATE OF THE AMBIENT TEMPERATURE SENSOR, PRESS AND HOLD THE RECIRC BUTTON AND AIR CONDITIONING BUTTON ON THE HEATER-VENT-AIR CONDITIONING CONTROL HEAD SIMULTANEOUSLY. IT IS ALSO POSSIBLE TO PERFORM THIS BY USING A SCAN TOOL IN SPECIAL FUNCTION MODE AND SELECT INSTANT UPDATE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLE MAY HAVE AN EXHAUST FLUID QUALITY POOR ON THE DRIVER INFORMATION CENTER OR A DIESEL EXHAUST FLUID WARNING LAMP ON OR OTHER EXHAUST FLUID QUALITY RELATED CONCERNS. TECHNICIAN WILL INSPECT THE DIESEL EXHAUST FLUID FOR CONTAMINATION. TECHNICIAN SHOULD USE SERVICE INFORMATION FOR CONTAMINANTS IN DIESEL EXHAUST FLUID DIAGNOSIS AND USE SPECIAL TOOL J26568 OR EN50422 DIESEL EXHAUST FLUID REFRACTOMETER FOR FLUID TESTING.
Source components: ENGINE AND ENGINE COOLING:ENGINE:DIESEL · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON VEHICLES THAT MAY HAVE AN INTERMITTENT HIGH IDLE. IF A TECHNICIAN HAS DUPLICATED, OR THE CUSTOMER DESCRIPTION ALIGNS WITH THE SPEEDS MENTIONED IN THE IDLE SPEED DESCRIPTION TABLES, THE IDLE SPEED SHOULD BE CONSIDERED A NORMAL CHARACTERISTIC OF CURRENT VEHICLE DESIGN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS FOR DIAGNOSING AND REPAIRING VEHICLES WITH DIAGNOSTIC TROUBLE CODE P0C2B WITH OR WITHOUT P2797. TECHNICIAN SHOULD NOT REPLACE THE AUXILIARY TRANSMISSION FLUID PUMP. TECHNICIAN WILL FOLLOW PUBLISHED DIAGNOSIS INSPECT THE WIRING BETWEEN THE HPCM AND THE AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE. IF THE WIRING TESTS OK WITH NO TERMINAL TENSION RELATED CONCERNS AT EITHER END OF THE CIRCUITS SUSPECT A POSSIBLE AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE RELATED CONCERN.
Source components: ELECTRICAL SYSTEM · EQUIPMENT · POWER TRAIN:AUTOMATIC TRANSMISSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE SERVICE ENGINE SOON AND A DIAGNOSTIC TROUBLE CODE P0011. IF THE TECHNICIAN HAS FOLLOWED SERVICE INFORMATION DIAGNOSTIC TROUBLE CODE FOR P0011AND THE ROOT CAUSE WAS NOT FOUND THE OIL PRESSURE AT THE OIL PRESSURE SENDER SHOULD BE CHECKED. ALSO THE NUMBER 2 CAM BEARING SHOULD BE INSPECTED.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages
NHTSA source summary · Original PDF not reviewed by Recallfolio
Information on Exhaust fluid range, exhaust fluid quality poor, service exhaust fluid system or service emission system driver information Center Messages
NHTSA source summary · Original PDF not reviewed by Recallfolio
Clunking Noise from Front of Vehicle During Turns and/or Bumps Some customers may comment on a clunking noise originating from the front of the vehicle that is more predominant during turns or traveling over bumps. This may be caused by a damaged stabilizer shaft frame bracket. There have been some cases in which the bracket is cracked, as shown. This condition has been found to be the result of insufficient welds between the bracket and frame rail. There have been some cases on older vehicles of corrosion affecting the bracket
NHTSA source summary · Original PDF not reviewed by Recallfolio
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages
Source components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
Source components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin adds the 2014 - 2016 model years to cleaning information to correct a customer concern of seeing a white film/residue on the IP pad and/or door trim panels.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information that may be useful in diagnosing/testing batteries that have set for a long period of time and/or set in cold weather climates to correct a customer concern of symptoms that include, but not limited to, a slow or no crank condition that may be caused by a discharged battery.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information to dealership personnel on identifying Duramax Diesel overpower engine breakdown or non-function due to aftermarket power-up devices vs. non overpower engine non-function of pistons, cylinders, valve train components, and DTC P003A or P111D set.
Source components: ENGINE AND ENGINE COOLING · FUEL SYSTEM, DIESEL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides service personnel with a guide to determine which SI documents and scan tool parameters to reference when encountering an: Exhaust Fluid Quality Poor message displayed, and a Reductant Fluid Quality Test status that will Pass, Time Out, Fail or Interrupt and other DEF messages that maybe observed.
Source components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides dealership personnel with policies and procedures regarding damaged, disassembled or improperly packaged turbochargers returned to Warranty Part Center.
Source components: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the 6.6L Duramax Diesel Engine Part number 12638502 has been placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact the General Motors Product Quality Center for further assistance.
Source components: ENGINE AND ENGINE COOLING:ENGINE:DIESEL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only)
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics.
NHTSA source summary · Original PDF not reviewed by Recallfolio
15114 - SPECIAL COVERAGE. ON SOME 2010-2012 MODEL YEAR CHEVROLET SILVERADO HD AND GMC SIERRA HD OR 2011-2012 CHEVROLET EXPRESS AND GMC SIERRA HD VEHICLES EQUIPPED WITH A 6.6L DURAMAX DIESEL ENGINE (RPO LML, LGH) THE MALFUNCTION INDICATOR LAMP (MIL) MAY ILLUMINATE DUE TO A CONDITION WITH THE GLOW PLUGS. WHEN DIAGNOSED, REPLACEMENT OF ONE OF THE ENGINES GLOW PLUGS MAY BE REQUIRED. NO DRIVABILITY ISSUES ARE GENERALLY ASSOCIATED WITH THIS ISSUE, BUT HARDER STARTING IN COLD AMBIENT TEMPERATURES MAY BE NOTED. DEALERS ARE TO REPLACE THE AFFECTED GLOW PLUG.
NHTSA source summary · Original PDF not reviewed by Recallfolio
14652 - SPECIAL COVERAGE. ON SOME 2010-2012 MODEL YEAR CHEVROLET EXPRESS AND GMC SAVANA VEHICLES AND 2011-2012 MODEL YEAR CHEVROLET SILVERADO HD AND GMC SIERRA HD VEHICLES THAT ARE EQUIPPED WITH A 6.6L DIESEL ENGINE (LML/LGH), A MALFUNCTION-INDICATOR LIGHT (MIL) MAY ILLUMINATE DUE TO AN OFFSET IN THE TEMPERATURE SENSOR IN THE DIESEL-EMISSION-REDUCTION FLUID (DEF) TANK RESERVOIR, INCREASED TANK-HEATER RESISTANCE, OR REDUCTANT-SYSTEM PERFORMANCE. DEALERS ARE TO REPLACE THE DEF TANK RESERVOIR AND/OR SUPPLY MODULE PUMP.
NHTSA source summary · Original PDF not reviewed by Recallfolio
15111 - SPECIAL COVERAGE. ON SOME 2012 MODEL YEAR CHEVROLET SILVERADO, EXPRESS, COLORADO AND GMC SIERRA, SAVANA, AND CANYON VEHICLES EQUIPPED WITH A 4.3L, 2.9L, OR 3.7L ENGINE (RPO LU3, LLV, OR LLR) AND A 4L60E AUTOMATIC TRANSMISSION (RPO M30), THE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED AND THE TRANSMISSION MAY EXHIBIT A HARSH SHIFT FROM FIRST GEAR TO SECOND GEAR. THIS CONDITION MAY ALSO SET DIAGNOSTIC TROUBLE CODE (DTC) P0741 IN THE TRANSMISSION CONTROL MODULE (TCM). IF DTC P0741 IS FOUND, DEALERS ARE TO REPLACE THE AUTOMATIC TRANSMISSION WIRING HARNESS.
Source components: POWER TRAIN:AUTOMATIC TRANSMISSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
12050C - CUSTOMER SATISFACTION PROGRAM (REVISED EXPIRATION DATE, EXTENDED TO 4/30/16). CERTAIN 2011-2012 MODEL YEAR CHEVROLET EXPRESS AND GMC SAVANA VEHICLES, AND CHEVROLET SILVERADO AND SUBURBAN, AND GMC SIERRA AND YUKON XL 2500 SERIES VEHICLES, ALL EQUIPPED WITH A 10.5" REAR AXLE, MAY HAVE A CONDITION IN WHICH THE REAR AXLE RIGHT-HAND SIDE BEARING ADJUSTER CLIP AND BOLT MAY COME LOOSE WITHIN THE REAR AXLE. IF THIS OCCURS, A GRINDING NOISE AND A VEHICLE VIBRATION WOULD BE NOTICEABLE WHEN THE VEHICLE IS IN MOTION. IF THE ADJUSTOR OR BOLT PUNCTURES THE DIFFERENTIAL COVER PAN, A FLUID LEAK COULD DEVELOP. IF ENOUGH FLUID WERE TO LEAK OUT, THE DRIVER MAY HEAR INCREASING NOISE, ADDITIONAL VEHICLE VIBRATION, AND SMELL BURNT AXLE LUBRICANT. IF THE DRIVER IGNORES THESE WARNINGS AND CONTINUES TO DRIVE THE VEHICLE, A SLOW LOSS OF VEHICLE MOTION COULD OCCUR. DEALERS ARE TO INSPECT AND, IF NECESSARY, REPAIR THE REAR AXLE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician about the calculation and operation of the engine oil life monitor. The monitor calculates the percent of oil life remaining, based on 3 pathways. The first pathway for oil life calculation is engine revolutions. The second pathway for oil life calculation is the mileage form the last rest for all General Motors powertrains except the Volt. The third pathway for oil life calculation is the amount of time the oil is in the engine. The Volt uses a 2 year timer instead of 1 year. It also uses the engine revolution counter. It does not use the mileage pathway to count down.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the 2ML70 Transmission Assembly will be placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicle that may OnStar inoperative and Navigation/GPS/Compass issues. Technician may find Diagnostic Trouble Codes B101D sym 3C and or F0. Technician will gather data using a scan tool and contact General Motors Technical Assistance Center for further assistance. After approval technician will replace the OnStar module.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information to correct a dealer concern of what they perceive to be paint staining when the protective shipping film is removed from certain vehicles.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin adds 2014 - 2015 model years to information regarding comeback prevention and using Customer Concern Verification Sheets (CCVS).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on control module diagnostics and configuration, programming using the TIS Service Programming System (SPS), set-up and warranty.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE DRIVE MOTOR GENERATOR CONTROL MODULE AND ACCESSORY POWER MODULE ARE BEING PLACED ON RESTRICTION THROUGH THE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER. DEALER WILL NEED TO CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE.
Source components: ELECTRICAL SYSTEM · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on chemical staining, pitting, corrosion and/or spotted appearance of chromed aluminum wheels, along with warranty information regarding these conditions.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLES MAY HAVE A SERVICE ENGINE SOON LAMP, ENGINE MISFIRE ON CYLINDER 1, 4, 6, OR 7 AND/OR TICK NOISE. TECHNICIAN WILL FOLLOW SERVICE INFORMATION DIAGNOSIS FIRST. IF SERVICE INFORMATION DIAGNOSIS DOES NOT ISOLATE THE CAUSE OF THIS CONCERN PERFORM A CYLINDER DEACTIVATION ACTIVE FUEL MANAGEMENT SYSTEM COMPRESSION TEST IN SERVICE INFORMATION. IF THE RUNNING COMPRESSION OF THE MISFIRING CYLINDER STAYS BELOW 25 POUNDS PER SQUARE INCH REGARDLESS OF THE ACTIVE FUEL MANAGEMENT SOLENOID BEING COMMANDED ON OR OFF, AN ACTIVE FUEL MANAGEMENT LIFTER IS MECHANICALLY COLLAPSED/STUCK OR UNLOCKING AS SOON AS THE ENGINE IS STARTED. REPLACE ALL ACTIVE FUEL MANAGEMENT LIFTERS, AND ALL PLASTIC LIFTER GUIDES. ALSO PERFORM THE CYLINDER DEACTIVATION ACTIVE FUEL MANAGEMENT VALVE LIFTER OIL MANIFOLD DIAGNOSIS AND TESTING IN SERVICE INFORMATION. IF IT ISOLATES A CONCERN WITH THE VALVE LIFTER OIL MANIFOLD, REPLACE IT AND REEVALUATE THE CONCERN. THE ACTIVE FUEL MANAGEMENT LIFTERS CAN ALSO BE MONITORED FOR PROPER OPERATION BY CAREFULLY INSPECTING THE CYLINDER 1, 4, 6, AND 7 ROCKERS AND VALVES WHILE CRANKING OR BRIEFLY AND SAFELY RUNNING THE ENGINE WITH THE VALVE COVERS REMOVED. IF THE VALVE OR VALVES OF AN ACTIVE FUEL MANAGEMENT CYLINDER STOP MOVING WHILE DOING THIS TEST, THE ACTIVE FUEL MANAGEMENT LIFTER IS CAUSING THE CONCERN. FOR 2008-2009 FULL SIZE TRUCK/SUV OR A 2007-2009 CHEVROLET TAHOE WITH THE POLICE PACKAGE REPROGRAM THE ENGINE CONTROL MODULE. ON THE 2008-2009 PONTIAC G8, 2010-2011 CAMARO, AND 2007-2010 FULL SIZE TRUCKS WITH ACTIVE FUEL MANAGEMENT, ALSO DETERMINE IF THE ACTIVE FUEL MANAGEMENT PRESSURE RELIEF VALVE SHIELD THAT IS LISTED IN THE LATEST VERSION OF 10-06-01-008 HAS EVER BEEN INSTALLED. ON PASSENGER CARS WITH THE LS4 ENGINE, DETERMINE IF THE UPDATED OIL PAN GASKET THAT IS LISTED IN THE LATEST VERSION OF 11-06-01-007 HAS BEEN INSTALLED.
Source components: ENGINE · EQUIPMENT ADAPTIVE/MOBILITY · POWER TRAIN:AUTOMATIC TRANSMISSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin adds models to information on voltmeter gauge fluctuation due to regulated voltage control system and concerns about camper/trailer battery charging.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin adds 2012 - 2015 model years to information communicating a change in the product field action customer reimbursement procedure (U.S. Dealers Only).
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. TECHNICIAN WILL NEED TO DETERMINE WHAT TYPE OF CALL THE CUSTOMER IS HAVING THAT IS UNWANTED. THE VEHICLE MAY RECEIVE AN INCOMING CALL JUST LIKE ANY OTHER PHONE. TYPICALLY THE CUSTOMER WILL HEAR THE PHONE RINGING IN THE VEHICLE. THIS SCENARIO ALSO INCLUDES INCOMING BLUETOOTH CALLS. ONE TYPE OF UNWANTED CALL CAN BE MADE IF THE KEY PAD IS FAULTY THE ONSTAR SYSTEM WILL TRY TO MAKE A BLUE BUTTON CALL FOR SHORTED VOLTAGE IN THE CIRCUITS. THE ONSTAR MODULE COULD HAVE AN INTERNAL FAULT AND PRODUCE A PHONE UNAVAILABLE AUDIO MESSAGE ALSO IT MAY HAVE A DIAGNOSTIC TROUBLE CODE U1500 OR B1000. REFER TO DIAGNOSTICS FOR THE DIAGNOSTIC TROUBLE CODE MAKING SURE TO FOLLOW ANY APPLICABLE BULLETINS OR PRELIMINARY INFORMATION SHEETS. A GREADYH OR GONSTAR READYH AUDIO MESSAGE HEARD WHILE DRIVING. IN SOME CASES IT HAS BEEN FOUND THAT THE CUSTOMER IS INADVERTENTLY PRESSING THE PUSH TO TALK BUTTON ON THE STEERING WHEEL CONTROLS. ON RARE OCCASIONS, OTHER ISSUES IN THE STEERING COLUMN OR STEERING WHEEL CONTROL SYSTEM MAY INDUCE THIS CONCERN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin supplies infomation for identifying non-GM (Aftermarket) engine calibrations for gasoline engines using Tech 2® or GDS 2 (U.S. and Canada).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides inspection and repair information that may be helpful to correct customer concerns of XM/Cellular Mobile Phone/OnStar® antenna looseness or damage, XM/Cellular/OnStar® reception performance degraded, rattle/flutter/squeak noise, wind noise/whistle at highway speeds, and/or a water leak on headliner at sunvisor.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin adds 2011 - 2014 model years to information on voltmeter gauge fluctuation due to regulated voltage control system and concerns about camper/trailer battery charging.
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE DIESEL OXIDATION CONVERTER PART RESTRICTION HAS ENDED. DEALER CAN NOW ORDER THE PARTS THROUGH THE REGULAR CUSTOMER CARE AND AFTERSALES PARTS PROCESS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides information that the tire pressure monitor (TPM) sensors must always be re-learned when accessory wheels are installed on the vehicle.
Source components: TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin was created for the Manual Transmission Operating Characteristics. The different noises caused by driver habit, weather conditions , and normal manual transmission noises.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary information bulletin provides information on how to remove stainless steel wheel nut caps with the matching depth of socket used on the wheel nut.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary information bulletin advises the technician that there is no update for the customers concerns of the GM remote start doesn't work with the Onstar remotelink phone application.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides procedures to inspect , replace, or repair the XM radio antenna to correct the customers concern loss XM services, noise and/or water leak.