2012 Chevrolet Express Technical Service Bulletins

1,783 technical service bulletins (TSBs) are on record for the 2012 Chevrolet Express. 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.

• 10245318Oct 1, 2013Vehicle speed control. Adding Cruise Control (RPO K34)
• 10112382Oct 1, 2013Visibility (wipers, defrost, mirrors). This Preliminary Information communication provides information to the technician about the percentage of UV protection or tint offered by the windshield or side glass. Technician should be advised Windshield reduces UV rays down to 4% or less. Front side door glass reduces UV rays down to 35% or less. Windshields are SOLAR glass with a light transmittance of >/=70%. Front door glass are Solar glass with a light…
• 10113273Sep 25, 2013Engine, Fuel system. This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. Technician should…
• 10113266Sep 23, 2013Engine cooling, Fuel system. This Preliminary Information communication provides information to the technician on the proper steps for filling the coolant system for vehicles with a diesel engine and rear heater systems. Dealer will need to review and use Service Information procedures for Cooling System Draining and Filling (Vac-N-Fill Diesel) after all cooling system repairs are made.
• 10113256Sep 18, 2013Electrical system, Equipment. 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.
• 10113248Sep 16, 2013Engine cooling, Fuel system, Engine. This Preliminary Information communication provides information to the technician about vehicles that may have "Exhaust Fluid Low", "Exhaust Fluid Empty - Refill Now", "Exhaust Fluid Range: XXX" or "Service Exhaust Fluid - See Owners Now" on the Driver Information Center. If the technician is working on 2010 and 2011 model years campaign 11001 has now been released.
• 10113239Sep 11, 2013Engine, Electrical system, Engine cooling. This Preliminary Information communication advises the technician that vehicles with engine Regular Production Option Code LGH or LML may have an Exhaust Fluid Quality Poor message displayed on the Driver Information Center. Technician will need to complete the current Service Information diagnostic for any current Diagnostic Trouble Codes or symptoms found.
• 10113227Sep 3, 2013Equipment. This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
• 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
• 10063415Sep 1, 2013Engine cooling. Summary to be provided on a future date.
• 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.
• 10063008Sep 1, 2013Engine cooling. Summary to be provided on a future date.
• 10113509Aug 30, 2013Equipment. This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM).
• 10113224Aug 29, 2013Engine. This Preliminary Information communication provides information to the technician about vehicles that may have an engine buzz, moan, rattle, whine, or vibration type noise that can typically be heard at idle or low revolutions per minute. The noise does not indicate a problem and will not result in damage to the pump or the engine. If the customer is dissatisfied with the oil pump whine noise replacement of the oil…
• 10113506Aug 28, 2013Tires. This warranty administration bulletin provide policy information on GM of Canada New Vehicle Limited Warranty Tire Program and Global Warranty Management (GWM) Submission Information.
• 10113502Aug 26, 2013Transmission and drivetrain, Brakes, Electrical system, Equipment, Engine…. This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND.
• 10113199Aug 20, 2013Electrical system. This Preliminary Information communication provides information to the technician about vehicles that the OnStar system will not connect. Technician should record module info per the latest version of PIC4310 and contact General Motors Technical Assistance Center.
• 10113494Aug 19, 2013Engine cooling, Equipment. This informational bulletin provides information on close-coupled converter and engine replacement.
• 10113492Aug 15, 2013Seat belts. This informational bulletin provides information on availability for the seat belt extender.
• 10113188Aug 12, 2013Steering. This Preliminary Information communication provides information to the technician vehicles with a slight rough idle. Technician should compare the concern with a like vehicle. If the concern is worse than a like vehicle, technician should follow published Service Information diagnosis and repair as necessary.
• 10113483Aug 5, 2013Tires. This warranty administration bulletin provide policy information new tire warranty program and global warranty management submission information.
• 10113178Aug 5, 2013Transmission and drivetrain. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle.
• 10113177Aug 5, 2013Engine, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300-P0308.
• 10113170Aug 1, 2013Transmission and drivetrain. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle.
• 10059995Jul 31, 2013Fuel system. Summary to be provided on a future date.
• 10130578Jul 18, 2013Electrical system. This informational bulletin provides information for warranty codes that are generated by EL-50313 midtronics GR8 battery tester/charger.
• 10130572Jul 16, 2013Equipment. This preliminary information bulletin provides information on poor or no transmitter range when using the remote keyless entry (RKE) and/or remote vehicle start (RVS).
• 10130570Jul 16, 2013Equipment. This informational bulletin provides information for the PQC assembly replacement process.
• 10130567Jul 12, 2013Equipment. This informational bulletin provides information on key codes security rules and information on GM key code look up application.
• 10113129Jul 12, 2013Engine. This Preliminary Information communication advises the technician that the 6.6L Duramax Diesel Engine Control Module Part numbers 12648344 and 12654088 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10113128Jul 12, 2013Engine. This Preliminary Information communication advises the technician that the Duramax Diesel Engine Fuel Injection Pump Part number 12645102 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10130566Jul 11, 2013Equipment. This informational bulletin provides information to inform dealers to remove the protective film bumper covers from the vehicle upon delivery.
• 10130565Jul 10, 2013Electrical system. This informational bulletin provides information for GM wiring repair.
• 10130562Jul 9, 2013Equipment. This informational bulletin provides information on key code security and information on GM key code look up applications.
• 10253140Jul 1, 2013Electrical system, Engine cooling. Duramax Engine Control Module Parts Restriction.
• 10246743Jul 1, 2013Fuel system. PSR-Compressed Natural Gas (CNG) Fuel Tank Shut-Off Solenoid Connector
• 10246634Jul 1, 2013Engine cooling. Information for Engine Oils Used in 2014 Model Year Vehicles
• 10246630Jul 1, 2013Electrical system. GM Wiring Repair Strategy Information
• 10070241Jul 1, 2013Fuel system, Electrical system. Summary to be provided on a future date.
• 10063432Jul 1, 2013Engine. Summary to be provided on a future date.
• 10063363Jul 1, 2013Transmission and drivetrain. Summary to be provided on a future date.
• 10063186Jul 1, 2013Fuel system. Summary to be provided on a future date.
• 10113069Jun 28, 2013Engine cooling, Transmission and drivetrain. This Preliminary Information communication provides information to the technician abut vehicles that have a knock noise or vibration from the engine or transmission. Technician will need to inspect the flex plate. The flex plate and transmission bell housing should be replaced if the flex plate is found cracked.
• 10134747Jun 24, 2013Engine cooling. This preliminary informational bulletin provides information for Malfunction Indicator Lamp (MIL) On,Various O2 Sensor DTCs Set Condition.
• 10134746Jun 24, 2013Transmission and drivetrain. This technical bulletin provides a revision for 10-06-01-004A to update the Parts Information.

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