2021 Chevrolet Express Technical Service Bulletins

642 technical service bulletins (TSBs) are on record for the 2021 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.

• 10245236Oct 17, 2023Brakes. This technical bulletin provides service information to correct a customer concern of Excessive Brake Pedal Travel and/or Vehicle Hard to Stop.
• 10245200Oct 17, 2023Transmission and drivetrain, Equipment. This information bulletin advises the technician the difference between a welch cap leak and the output seal of the t-case or transmission leaking ATF, causing the customer concern of a Red Fluid Leak from Center of Vehicle Located by Rear of Transmission or Transfer Case Area.
• 10245201Oct 16, 2023Equipment, Electrical system. This service bulletin provides repair information to correct a customer concern of OnStar Inoperative after Importing Vehicle from Canada to the United States.
• 10244326Oct 11, 2023Equipment. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
• 10244274Oct 6, 2023Wheels. This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
• 10244273Oct 6, 2023Engine cooling. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
• 10245986Oct 4, 2023Other or unknown. This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
• 10244315Oct 3, 2023Equipment. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.
• 10244202Sep 28, 2023Tires, Wheels. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10247780Sep 26, 2023Visibility (wipers, defrost, mirrors). This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
• 10247778Sep 26, 2023Electrical system. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
• 10244201Sep 26, 2023Equipment. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
• 10244200Sep 26, 2023Equipment. This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
• 10244180Sep 22, 2023Engine cooling. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
• 10244214Sep 21, 2023Electrical system, Equipment. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
• 10244174Sep 21, 2023Equipment. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 10243753Sep 15, 2023Transmission and drivetrain. This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if found the cause of the customer's concern.
• 10243749Sep 13, 2023Transmission and drivetrain. This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
• 10242844Sep 8, 2023Engine cooling. This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.
• 10243717Sep 5, 2023Equipment. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 10242843Sep 1, 2023Transmission and drivetrain, Engine cooling. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
• 10242842Sep 1, 2023Equipment. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
• 10242309Aug 24, 2023Transmission and drivetrain. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
• 10242262Aug 24, 2023Engine cooling. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
• 10242252Aug 18, 2023Brakes. This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
• 10242207Aug 18, 2023Equipment. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
• 10242206Aug 15, 2023Equipment. This Warranty Administration bulletin provides information on the proper use of the labor operation 0600014.
• 10242243Aug 14, 2023Electrical system, Equipment. This service bulletin provides repair information to correct a customer concern of OnStar Inoperative after Importing Vehicle from Canada to the United States.
• 10242298Aug 10, 2023Engine. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
• 10242204Aug 10, 2023Engine cooling. This informational bulletin advised the technician that the engine and related parts will be debited if found that the tech didn't properly prepare the engine block from dirt and debris in bolt holes or if found that the block was damaged by the tech.
• 10242070Aug 10, 2023Engine cooling, Electrical system. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10242061Aug 7, 2023Steering, Engine cooling, Transmission and drivetrain, Suspension. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
• 10241418Aug 2, 2023Engine cooling, Fuel system. This informational bulletin provides information on Clean Exhaust Filter See Owner Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
• 10241853Aug 1, 2023Engine cooling, Fuel system. This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.
• 10241503Aug 1, 2023Electrical system, Fuel system. This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.
• 10241502Aug 1, 2023Engine cooling, Fuel system. This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
• 10241417Aug 1, 2023Engine cooling, Fuel system. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
• 10241416Aug 1, 2023Fuel system. This service bulletin provides information on availability of Diesel Fuel additives.
• 10241415Aug 1, 2023Equipment. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
• 10240359Jul 31, 2023Engine cooling, Electrical system. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10240344Jul 31, 2023Engine cooling. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
• 10240185Jul 26, 2023Transmission and drivetrain. This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
• 10239647Jul 21, 2023Transmission and drivetrain. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
• 10240793Jul 18, 2023Equipment. This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
• 10239755Jul 17, 2023Seat belts. This service bulletin provides information on availability for a seat belt extender.
• 10239658Jul 17, 2023Equipment. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen.
• 10239633Jul 14, 2023Engine cooling. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
• 10240786Jul 13, 2023Equipment. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
• 10239645Jul 12, 2023Equipment, Electrical system. This service bulletin provides information for dealers/technicians on Over the Air (OTA) and In Market Enhancement (IME) FAQs.
• 10239638Jul 12, 2023Equipment, Electrical system. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.

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