2011 Chevrolet Express Technical Service Bulletins

1,695 technical service bulletins (TSBs) are on record for the 2011 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.

• 10115053Jun 17, 2015Tires, Suspension. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer…
• 10089949Jun 15, 2015Fuel system. 14653 - special coverage. Some 2010-2014 model year chevrolet express, 2011-2014 model year chevrolet silverado hd, 2010-2014 model year gmc savana and 2011-2014 model year gmc sierra hd vehicles equipped with a 6.6l engine (rpo lml or lgh), may have a condition where the indirect fuel injector can become stuck in the closed position or can have low flow. This condition could result in the illumination of the…
• 10113688Jun 12, 2015Equipment. This informational bulletin provides dealership personnel with Global Warranty Management (GWM), Warranty Parts Center (WPC), and Parts Return Program information.
• 10113687Jun 11, 2015Equipment. This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.
• 10115026Jun 8, 2015Electrical system. This Preliminary Information communication provides information to the technician about vehicles that may have the OnStar wireless fidelity inoperative. Technician will need to contact General Motors Technical Assistance Center with a scan tool connect to the vehicle for further assistance.
• 10115024Jun 8, 2015Fuel system. This Preliminary Information communication provides information to the technician about vehicles that have a hard start or a no start. Technician may find Diagnostic Trouble Code DTCs P0087, P0088, P0191 or P128E. Technician will need to follow all Service Information diagnose for the Diagnostic Trouble Code. If the current Service Information diagnostic has led to Fuel Injection Pump replacement, Fuel Pressure…
• 10115023Jun 8, 2015Engine. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on or a low oil pressure indicated after an oil change. Technician may find Diagnostic Trouble Code P0521. If Diagnostic Trouble Code P0521 setting in cold weather and it has a PF48E oil filter, change the filter to a UPF48R if one is available.
• 10115014Jun 3, 2015Equipment. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will use Global Diagnostic System 2 to review the Firmware Over-the-Air version. If the Firmware Over-the-Air version on the scan tool equals 6708 the technician will need to contact General Motors Technical…
• 10113669Jun 2, 2015Equipment. This informational bulletin provides information to dealership personnel on properly maintaining vehicles in dealer inventory.
• 10115006Jun 1, 2015Equipment, Engine. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on or a low oil pressure indicated after an oil change. Technician may find Diagnostic Trouble Code P0521. If Diagnostic Trouble Code P0521 setting in cold weather and it has a PF48E oil filter, change the filter to a PF48 if one is available. If there is no…
• 10058724Jun 1, 2015Fuel system, Engine. Gmc/chevrolet: tsb contains an owner's notification letter. Select document search button below. Some trucks will experience illumination of malfunction indicator light (mil) due to indirect fuel injector will have low flow or be stuck in closed position. Model 2010-14 express, savana, 2011-14 sierra hd, silverado hd.
• 10113664May 29, 2015Transmission and drivetrain. This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test essential tool J-45096 TransFlow®.
• 10113662May 27, 2015Fuel system, Other or unknown. This informational bulletin provides dealership personnel with information on flexible fuel vehicles (FFVs) and the usage of E85 fuel in GM vehicles.
• 10113658May 22, 2015Engine cooling. This informational bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered seepage.
• 10113657May 21, 2015Engine cooling. This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage.
• 10113654May 15, 2015Equipment. This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.
• 10113653May 15, 2015Exterior lighting. This technical bulletin provides repair information for low beam headlamp bulb diagnosis/replacement to correct a customer concern that the low beam headlamp is inoperative.
• 10113652May 15, 2015Equipment. This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.
• 10114527May 8, 2015Engine cooling. This Preliminary Information communication provides additional information to the technician when replacing the Duramax Diesel head gasket. This is a supplement to procedure found in Service Information. The left and right cylinder head gaskets are not interchangeable and will block oil and coolant passages if installed incorrectly resulting in severe damage to the engine.
• 10113634May 7, 2015Engine. This informational bulletin provides technicians with information to help educate them on the many various combinations of engines, interfacing equipment and vehicle usage which may cause higher than expected oil consumption.
• 10089972May 1, 2015Suspension. 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.
• 10044218May 1, 2015Suspension. Chevrolet/gmc: see document search button for owner letter. On some 2011-2012 trucks, a grinding noise and vibration would be noticeable due to the rear axle right hand side bearing adjuster clip and bolt may come loose inside of rear axle. *pe updated 9/6/12. *pe updated 7/18/14. *pe updated 11/6/15.
• 10113620Apr 28, 2015Equipment. This preliminary informational bulletin provides repair information to correct a customer concern of Iitermittently key will not rotate in door or ignition lock cylinder.
• 10113614Apr 27, 2015Equipment. This informational bulletin provides information to assist dealership personnel with the identification of vehicle headlamp, tail lamp, license lamp or fog/driving lamp damage that are not considered warrantable.
• 10113613Apr 27, 2015Equipment. This informational bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered seepage.
• 10114476Apr 21, 2015Electrical system. This Preliminary Information communication provides information to the technician about vehicle starts and stalls on the first initial start after the replacement of the Theft Deterrent Module. Technician will need to use the scan tool to check Manufactures Enable Counter. If the number is anything other than zero the Manufactures Enable Counter will need to be reset.
• 10114474Apr 20, 2015Equipment. 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.
• 10114470Apr 17, 2015Electrical system, Equipment. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
• 10113599Apr 17, 2015Engine cooling, Equipment. This informational bulletin provides information to technicians on exhaust fluid range, exhaust fluid quality poor, service exhaust fluid system or Service Emission System Driver Information Center (DIC) messages.
• 10114459Apr 13, 2015Engine cooling. 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…
• 10090050Apr 2, 2015Engine. 14634 -special coverage (message only - population change). Please be advised 2010-2014 chevrolet express and gmc savana vehicles equipped with a 6.6l diesel engine (lmm/lgh), 5.3l flex-fuel engine (lmf), or a 6.0l liquid propane/compressed natural gas engine (lc8) are not included in this program but were inadvertently included.
• 10135418Mar 31, 2015Electrical system. This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only).
• 10113785Mar 31, 2015Equipment. This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only).
• 10135412Mar 26, 2015Equipment. This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement.
• 10113775Mar 26, 2015Equipment. This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement.
• 10113773Mar 26, 2015Equipment. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
• 10090069Mar 25, 2015Engine. 13386a - special coverage (revised warranty transaction information). On some vehicles equipped with a 6.6l diesel engine (rpo lgh) and vehicles equipped with a 6.6l diesel engine (rpo lml/lgh), the nitrogen oxide (nox) sensor may fail due to contamination between the terminals in the sensor and the wire interface. The contamination may cause the nox sensor signal to become unstable and/or oscillate which may cause…
• 10135410Mar 24, 2015Brakes. This informational bulletin provides technicians with a brake lathe calibration procedure.
• 10113770Mar 24, 2015Brakes. This informational bulletin provides technicians with a brake lathe calibration procedure.
• 10139361Mar 23, 2015Equipment. 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.
• 10139349Mar 18, 2015Engine. This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on during a cold start in temperatures below 0 degrees Fahrenheit. Technician will find Diagnostic Trouble Code P0521. Technician will check the oil filter part number. If the part number is PF48E change the oil filter to a PF48. If a PF48 is not available…
• 10135395Mar 16, 2015Equipment. This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system.
• 10135394Mar 16, 2015Electrical system. This informational bulletin communicates GM wiring repair strategy information.
• 10113753Mar 16, 2015Equipment. This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system.
• 10113752Mar 16, 2015Electrical system. This informational bulletin communicates GM wiring repair strategy information.
• 10139338Mar 11, 2015Fuel system, Equipment. This Preliminary Information communication advises the technician that the part restriction has ended on the 6.6L Duramax Diesel Engine Fuel Injection Pump Part numbers 12645102, 12658095 and 12661059.
• 10139334Mar 10, 2015Engine. This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on during a cold start in temperatures below 0 degrees Fahrenheit. Technician will find Diagnostic Trouble Code P0521. Technician will check the oil filter part number. If the part number is PF48E change the oil filter to a PF48. If a PF48 is not available…
• 10135384Mar 10, 2015Equipment. This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 ? Suspected Tampering or Vehicle Modifications.
• 10113745Mar 10, 2015Equipment. This warranty administration bulletin communicates GM required operating procedures (U.S. only) for service operations.
• 10113741Mar 10, 2015Equipment. This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 - Suspected Tampering or Vehicle Modifications.

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