2012 GMC Sierra 3500 Technical Service Bulletins

773 technical service bulletins (TSBs) are on record for the 2012 GMC Sierra 3500. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10070943Apr 1, 2014Engine cooling. Summary to be provided on a future date.
• 10137852Mar 5, 2014Equipment, Fuel system. This preliminary bulletin provides procedure to correct contact between the fuel temperature sensor connector and the fuel return line for clearance.
• 10061090Mar 4, 2014Transmission and drivetrain. Summary to be provided on a future date.
• 10253605Mar 1, 2014Equipment. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
• 10247681Mar 1, 2014Equipment. Information On Requests To Add OnStar Bluetooth Option.
• 10246982Mar 1, 2014Electrical system. Checking Smartphone Bluetooth Software Update Status
• 10245950Mar 1, 2014Equipment. Canadian Customers Unable To Place Calls In The United States
• 10245342Mar 1, 2014Electrical system. Removing / Disabling Rear Park Assist RPO UD7.
• 10073396Mar 1, 2014Equipment. Summary to be provided on a future date.
• 10070902Mar 1, 2014Fuel system. Summary to be provided on a future date.
• 10055381Mar 1, 2014Fuel system. Gm: the fuel temperature sensor contacts the fuel return pipe after pump replacement. Includes make: chevrolet and gmc. Models: silverado 2500/3500 and sierra 2500/3500. Model years 2012-2014.
• 10253174Feb 1, 2014Transmission and drivetrain. NQG 4WD Models With Noise Vibration On Dry Pavement.
• 10246621Feb 1, 2014Equipment. Car and Truck Fix it Right the First Time Issues
• 10245771Feb 1, 2014Wheels, Other or unknown, Tires. Proper Wheel Installation and Wheel Torque Techniques
• 10245768Feb 1, 2014Wheels, Suspension, Tires. Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip
• 10190932Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes…
• 10190931Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes…
• 10070134Feb 1, 2014Transmission and drivetrain. Summary to be provided on a future date.
• 10112045Jan 31, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that has no XM audio on certain channels but XM channel info is displayed. Technician will need to contact XM and deactivate and activate the module.
• 10253173Jan 1, 2014Transmission and drivetrain. NQG 4WD Models With Noise Vibration On Dry Pavement.
• 10190935Jan 1, 2014Equipment. Frame Labels Visible from Outside of Vehicle Some customers may comment on disliking the appearance of the white labels that are visible on the frame The frame labels are only required during the manufacturing process and can be removed during pre-delivery inspection (PDI). There are two labels on the frame: the left front label (1) visible underneath the driver's door and the right front label (2) visible through…
• 10190934Jan 1, 2014Equipment, Body and structure. Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the…
• 10190933Jan 1, 2014Body and structure, Equipment. Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the…
• 10253138Dec 1, 2013Transmission and drivetrain. Transmission Valve Body.
• 10063434Dec 1, 2013Transmission and drivetrain. Summary to be provided on a future date.
• 10246619Nov 1, 2013Equipment. Car and Truck Fix it Right the First Time Issues
• 10112331Nov 1, 2013Engine cooling. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
• 10112329Nov 1, 2013Equipment. This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Technician should use the Preliminary Information to gather information from the customer on their Bluetooth device and the concern they are having before calling General Motors Technical Assistance Center.
• 10054243Nov 1, 2013Body and structure, Visibility (wipers, defrost, mirrors). General motors: the windows, front and rear, would bind, poor fit, misalignment, makes rattle or squeaking noises, moves slowly and is inoperative. Model 2008-2014 vehicles and trucks.
• 10246589Oct 10, 2013Engine cooling. Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages
• 10112399Oct 8, 2013Equipment. 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.
• 10247679Oct 1, 2013Vehicle speed control. Adding Cruise Control (RPO K34)
• 10247675Oct 1, 2013Electrical system. Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank
• 10246632Oct 1, 2013Equipment. PAC Courtesy Transportation Assistance Program
• 10246618Oct 1, 2013Equipment. Car and Truck Fix it Right the First Time Issues
• 10245779Oct 1, 2013Other or unknown, Equipment. Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Goodwrench Maintenance Schedule to Enhance Customer Service Experience
• 10245778Oct 1, 2013Equipment, Other or unknown. Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Goodwrench Maintenance Schedule to Enhance Customer Service Experience
• 10245739Oct 1, 2013Equipment. Enable and Empower Project
• 10245318Oct 1, 2013Vehicle speed control. Adding Cruise Control (RPO K34)
• 10245314Oct 1, 2013Electrical system. Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank
• 10063446Oct 1, 2013Electrical system, Transmission and drivetrain. Summary to be provided on a future date.
• 10063233Oct 1, 2013Equipment. Summary to be provided on a future date.
• 10032396Oct 1, 2013Electrical 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
• 10254237Sep 1, 2013Body and structure. Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting.
• 10253412Sep 1, 2013Fuel system. Duramax Fuel System Contamination Identification.
• 10253162Sep 1, 2013Engine cooling. Exhaust Fluid Low
• 10250085Sep 1, 2013Seat belts. Seat Belt Extender Availability
• 10246572Sep 1, 2013Seat belts. Seat Belt Extender Availability
• 10063393Sep 1, 2013Engine cooling. Summary to be provided on a future date.
• 10063009Sep 1, 2013Fuel system, Other or unknown. Summary to be provided on a future date.

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