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.

• 10126343Oct 1, 2015Engine cooling. This preliminary informational bulletin provides dealership personnel with policies and procedures regarding damaged, disassembled or improperly packaged turbochargers returned to Warranty Part Center.
• 10075416Oct 1, 2015Electrical system. Summary to be provided on a future date.
• 10074665Oct 1, 2015Exterior lighting. Summary to be provided on a future date.
• 10127246Sep 30, 2015Electrical system. This Preliminary Information communication provides information to the technician about a connectivity concern with Bluetooth after phone software is updated or after any vehicle updates for the radio or Human Machine Interface has taken place. Technician should delete all Bluetooth pairings and then reboot the Bluetooth device and the vehicle. After the vehicle and radio is booted back up repair the Bluetooth…
• 10127240Sep 29, 2015Equipment. This Preliminary Information communication provides information to the technician about vehicles that the Turn By Turn directions may no longer be displayed after the Canada OnStar upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10127238Sep 29, 2015Electrical system. This Preliminary Information communication provides information to the technician about vehicles that the incoming caller ID may no longer be available or displayed after the Canada OnStar upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10127230Sep 28, 2015Fuel system. This Preliminary Information communication provides information to the technician to help determine if the vehicle is equipped with factory or aftermarket Compressed Natural Gas, Liquefied Petroleum Gas, or Bi-Fuel Systems. Technician will check for the Vehicle Emission Control Information Label.
• 10123496Sep 18, 2015Engine cooling. 15457 - Special Coverage. Some 2010-2015 Chevrolet Express and GMC Savana vehicles and 2011-2015 Chevrolet Silverado HD and GMC Sierra HD vehicles that are equipped with 6.6L Duramax Diesel engines (RPO LML or LGH) may contain a leak in the seal between the engine-exhaust down pipe and the engine-exhaust pipe. If a leak is present, the intermittent regeneration of the diesel-particulate filter may cause small…
• 10127199Sep 16, 2015Electrical system. 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.
• 10113817Aug 25, 2015Equipment. 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).
• 10114680Aug 24, 2015Engine cooling. 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.
• 10113810Aug 18, 2015Equipment. This warranty administration bulletin provides dealership personnel with policy and procedure requirements for essential tools that include consumable parts (U.S. Only).
• 10113805Aug 12, 2015Engine cooling. This preliminary informational bulletin provides repair information to correct customer concerns of an exhaust leak or vibration/rattle noise at approximately 900 RPM, fuel smell/white smoke noted intermittently (usually after coming to a stop), and/or an oily substance noted on exhaust downpipe.
• 10114652Aug 7, 2015Engine, Equipment. 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. Inspect the engine for any oil leaks and repair if need. Technician should change the engine oil and replace the oil filter using a PF48e type filter.
• 10113796Aug 6, 2015Equipment. This informational bulletin provides information on the proper use of GM floor mats.
• 10114646Aug 4, 2015Engine cooling. 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.
• 10113792Aug 4, 2015Engine cooling. This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage.
• 10114642Aug 3, 2015Electrical system. 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 check Global Warranty Management system for customer satisfaction program 15086 status. If the status of the customer satisfaction program 15086 was not completed follow the steps to get the Telematics…
• 10113788Aug 3, 2015Equipment. This warranty administration bulletin provides policy information on courtesy transportation and roadside assistance programs.
• 10113787Aug 3, 2015Seat belts. This informational bulletin provides information to advise dealers about seat belt buckles not operating and/or seat belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button sticking.
• 10059084Aug 1, 2015Engine cooling. Gmc/chevrolet: to assist engineering product feedback, parts for duramax diesel engine, has been placed on restrictions, by product quality center (pqc). Model 2010-16 duramax.
• 10059078Aug 1, 2015Engine, Electrical system. Cadillac/chevrolet/gmc: on some vehicles and/or trucks, instrument cluster will illuminate, after an oil change, indicating low oil pressure and/or ses lamp will illuminate. Model 2007-13 canyon, sierra, savana, yukon, cts-v, escalade, avalanche, camaro ss, colorado, corvette, express, silverado, suburban, tahoe.
• 10138154Jul 30, 2015Equipment, Electrical system, Engine. This informational bulletin provides information to dealership personnel on properly maintaining vehicles in dealer inventory.
• 10114639Jul 30, 2015Electrical system. 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…
• 10114638Jul 30, 2015Electrical system. 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.
• 10138147Jul 28, 2015Electrical system, Equipment, Engine cooling. This informational bulletin provides technicians with Information for Identifying non-GM ECM calibration use and Power-Up hardware detection in Duramax? diesel engines ? Photograph Tech 2® Calibration IDs, Calibration Verification Numbers (CVNs) and Transmission Data Screen.
• 10138146Jul 28, 2015Engine cooling. 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).
• 10138139Jul 23, 2015Electrical system, Equipment. This technical bulletin provides repair information for the correction of a customer concern of short duration musty odors emitted from the HVAC system at vehicle start-up in hot, humid conditions.
• 10114614Jul 22, 2015Engine cooling. This Preliminary Information communication provides information to the technician of additional information while diagnosing a diagnostic trouble code P0420. Check for a possible leak in the exhaust system behind the bank one number 2 oxygen sensor. If a leak is found or there is an aftermarket utility bed or trailer hitch installed. Check for a minimum clearance of 1.5 to 2 inches of the exhaust system. Install a…
• 10138137Jul 21, 2015Electrical system, Equipment. This warranty administration bulletin provides policy information on ACDelco® replacement battery warranty procedures.
• 10138130Jul 16, 2015Transmission and drivetrain. This informational bulletin provides technicians with information to assist in identifying operating characteristics of manual transmissions that repair attempts will not change.
• 10138125Jul 15, 2015Equipment. This informational bulletin provides dealership personnel with information on new vehicle Pre-Delivery Inspection (PDI) process and to encourage delivering quality vehicles and generating higher CSi scores.
• 10138124Jul 14, 2015Body and structure. 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)
• 10114599Jul 13, 2015Engine cooling. This Preliminary Information communication provides information to the technician with additional information while diagnosing a diagnostic trouble code P0420. Check for a possible leak in the exhaust system behind the bank one number 2 oxygen sensor. If a leak is found or there is an aftermarket utility bed or trailer hitch installed. Check for a minimum clearance of 1.5 to 2 inches of the exhaust system. Install…
• 10138117Jul 10, 2015Equipment, Body and structure. This informational bulletin provides recommendations and product information for application of anti-corrosion materials
• 10138114Jul 10, 2015Seats, Electrical system, Equipment. This informational bulletin provides dealership personnel with information on interior cleaning of Instrument Panel (IP), hard or plastic surfaces, seats, carpet, leather, vinyl, fabric cleaner, stain remover, restorer and product availability.
• 10138113Jul 10, 2015Fuel system. This informational bulletin provides information on TOP TIER Detergent Gasoline and available retail brands.
• 10114598Jul 10, 2015Equipment. 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.
• 10114597Jul 9, 2015Transmission and drivetrain, Equipment. This Preliminary Information communication provides information to the technician of an engine power reduced message on the driver information center after performing the Canada Onstar® 4G upgrade. If the concern is present park the vehicle outside and call General Motors Technical Assistance Center.
• 10089893Jul 8, 2015Electrical system, Engine. 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.
• 10137943Jul 7, 2015Electrical system, Equipment. This informational bulletin provides information to dealership personnel regarding warranty codes generated by EL-50313 Midtronics GR8 Battery Tester/Charger required for claim processing on labor operations 4041510, 4041520 and 250 mile/400 km labor operation restriction (North America ONLY).
• 10089887Jul 7, 2015Engine. 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…
• 10058758Jul 1, 2015Engine cooling. Chevrolet/gmc: tsb contains an owner's notification letter. Select document search button below. Some trucks will experience engine glow plugs issues causing malfunction indicator lamp (mil) to illuminate and need to replace engine glow plugs. Model 2010-12 express, savana, 2011-12 sierra hd, silverado hd.
• 10058722Jul 1, 2015Fuel system, Engine cooling. Chevrolet/gmc: tsb contains an owner's notification letter. Select document search button below. Some trucks will experience an increased heater resistance or reductant system performance due to an offset in temperature sensor of diesel emission reduction fluid tank reservoir, causing the malfunction indicator lamp to illuminate. Model 2010-12 express, savana, 2011-12 silverado hd, sierra hd.
• 10113703Jun 23, 2015Electrical system, Engine cooling. This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC P2138 set.
• 10115067Jun 22, 2015Electrical system. This Preliminary Information communication provides information to the technician about being unable to receive OnStar ?Over The Air? updates. Technician will need to press the OnStar button and verify they have an active account and that the call connects with data and location.
• 10113702Jun 22, 2015Suspension. This preliminary informational bulletin provides repair information on installing a reinforcement to correct a customer concern that a crack has developed on the spring mount area of the front shock absorber mounting bracket.
• 10113701Jun 22, 2015Equipment. This informational bulletin provides information for dealers/technicians on when and how to submit a Field Product Report (FPR) (U.S. Dealers Only).
• 10115061Jun 19, 2015Engine cooling, Fuel system. 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.
• 10115059Jun 18, 2015Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Code P0011. If the technician has followed all published Service Information diagnosis and has not come to a conclusion, technician should check the oil pressure at the oil pressure sender. Then the number two cam…

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