2020 Chevrolet Silverado 2500 Technical Service Bulletins

1,397 technical service bulletins (TSBs) are on record for the 2020 Chevrolet Silverado 2500. 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.

• 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.
• 10242114Aug 10, 2023Electrical system, Brakes, Transmission and drivetrain, Engine cooling. This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp being illuminated. They may also comment on multiple transmission issues including harsh or delayed shifts, slip, surge, shudder, noise, whine, growl, shake and/or vibration. As well as the exhaust brake not working or that they do not feel it. Technicians may find DTCs P2002, P2463, P2459, P144E, P0421…
• 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, 2023Suspension, Transmission and drivetrain, Steering, Engine cooling. 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.
• 10242281Aug 2, 2023Back-over prevention (rear camera). This Preliminary information communicates the possibility of a misfire or rough running concern and abnormal engine noise due to excessive wear in exhaust roller follower axle pin.
• 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, 2023Fuel system, Electrical 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, 2023Fuel system, Engine cooling. 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.
• 10240361Jul 31, 2023Electrical system, Engine cooling. This informational bulletin provides a way for the technician to identify if the ECM has been modified.
• 10240359Jul 31, 2023Electrical system, Engine cooling. 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.
• 10240187Jul 27, 2023Body and structure. This technical bulletin provides repair information to correct a customer concern of vertical misalignment between cab and pickup box on driver side of vehicle.
• 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.
• 10239670Jul 20, 2023Wheels, Electrical system, Tires. This service bulletin advises the technician of a different tire/rim option that can be used to correct a customer concern of poor ride quality at highway speeds.
• 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.
• 10240792Jul 18, 2023Forward collision avoidance. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
• 10239674Jul 18, 2023Fuel system, Electrical system, Engine cooling. This technical bulletin provides a procedure to test and replace the high-pressure fuel injector electrical connectors if found the cause of the MIL.
• 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.
• 10239629Jul 13, 2023Exterior lighting, Electrical system. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
• 10240782Jul 12, 2023Back-over prevention (rear camera), Body and structure. This Preliminary information communicates an issue with a wind noise while driving at highway speeds and dealers are to inspect the body harness pass through for being full seated into the cowl.
• 10239645Jul 12, 2023Electrical system, Equipment. 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.
• 10239124Jun 30, 2023Body and structure. This service bulletin provides information on Paintless Dent Repair Process.
• 10239116Jun 30, 2023Equipment, Electrical system. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
• 10239101Jun 30, 2023Engine cooling. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
• 10239121Jun 29, 2023Body and structure, Electrical system. This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.
• 10239112Jun 29, 2023Air bags, Electrical system. This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.
• 10239103Jun 29, 2023Transmission and drivetrain. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
• 10239102Jun 29, 2023Electrical system. The intent of this service 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.
• 10239179Jun 26, 2023Transmission and drivetrain. This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.
• 10239171Jun 20, 2023Back-over prevention (rear camera). This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview Camera. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 152. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
• 10239087Jun 19, 2023Engine cooling. This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446, P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
• 10239164Jun 16, 2023Transmission and drivetrain. This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.
• 10238190Jun 14, 2023Equipment. This service bulletin describes the U.S. Dealer Special Tool Loan Program process.
• 10239052Jun 12, 2023Electrical system, Equipment. This technical bulletin provides repair information to correct a customer concern of No Alert Tones from Rear Cross Traffic Alert.
• 10239039Jun 12, 2023Equipment, Electrical system. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.
• 10239154Jun 9, 2023Tires. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
• 10237960Jun 8, 2023Equipment. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).
• 10239150Jun 7, 2023Transmission and drivetrain. This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.
• 10237935Jun 7, 2023Engine cooling. This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.
• 10237846Jun 7, 2023Engine cooling, Transmission and drivetrain. This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.

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