2021 Chevrolet Silverado 1500 Technical Service Bulletins

1,464 technical service bulletins (TSBs) are on record for the 2021 Chevrolet Silverado 1500. 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.

• 10208064Jan 27, 2022Engine cooling. This Preliminary information communicates to technicians to replace the ECM and affected sensor if diagnostics leads to replacement of the ECM.
• 10208063Jan 27, 2022Engine cooling. This Preliminary information communicates to dealership technicians to perform a sweep of the coolant flow control valve and test the circuits before replacing the Engine Coolant Flow Control Valve, and to assist engineering in root causing the P2B60.
• 10212591Jan 26, 2022Transmission and drivetrain, Air bags. This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle.
• 10208061Jan 26, 2022Visibility (wipers, defrost, mirrors). This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the heater core inlet and outlet hoses for being twisted or kinked.
• 10208058Jan 26, 2022Back-over prevention (rear camera). This Preliminary information communicates to the dealers information related to a hot idle tick noise from the engine. Testing to isolate the noise to the upper engine / valve train and repair recommendations related to valve train components.
• 10214216Jan 25, 2022Brakes, Wheels. This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing ?D? on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.
• 10214199Jan 24, 2022Equipment, Engine cooling. This informational bulletin provides a way for the technician to identify if the ECM has been modified.
• 10213777Jan 24, 2022Transmission and drivetrain, Engine cooling. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Engine Coolant Reservoir Being Overfilled with Discolored Coolant, Shudder, Shake, Vibration, Harsh Shift, Delayed Shift and/or Slipping Transmission Performance.
• 10208053Jan 24, 2022Electronic stability control. This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.
• 10212609Jan 21, 2022Fuel system. This information bulletin advised the tech of possible use of low fuel quality and the possible ramifications in performance in regards to the customers concerns.
• 10212613Jan 20, 2022Engine cooling. The informational bulletin explains the normal noises that are emitted from the engine once the engine is turned off.
• 10208048Jan 20, 2022Latches, locks and linkages. This Preliminary information communicates an issue with the tailgate latch handle disengaging from the tailgate. Dealers are to remove the tailgate handle standoff brackets.
• 10212607Jan 19, 2022Exterior lighting, 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.
• 10212628Jan 18, 2022Electrical system. This service bulletin provides information for dealers/technicians on Stone Chip/Membrane Damage, Broken Connector and/or Sensor Retaining Tabs, and/or Paint Damage of Park Assist Sensors.
• 10212605Jan 18, 2022Engine. 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.
• 10208039Jan 18, 2022Back-over prevention (rear camera), Electrical system. This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.
• 10208036Jan 18, 2022Lane departure. This Preliminary Information communication provides information to the technician with additional information on the functionality of Lane Keep Assist. Starting with 2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane…
• 10208035Jan 18, 2022Engine cooling. This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed.
• 10208034Jan 18, 2022Other or unknown. 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.
• 10208030Jan 14, 2022Visibility (wipers, defrost, mirrors), Back-over prevention (rear camera). This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.
• 10208029Jan 14, 2022Engine. 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.
• 10208027Jan 14, 2022Brakes, Fuel system. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
• 10214200Jan 13, 2022Fuel system, Engine cooling, Equipment. This service bulletin provides service information for a DEF pump that is unable to build pressure after replacement.
• 10212617Jan 13, 2022Engine cooling. This informational bulletin explains a normal condition for sludge to form in the oil cap when equipped with DEF system.
• 10213772Jan 12, 2022Air bags. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Service 4WD message displayed on the driver information center (DIC).
• 10212612Jan 12, 2022Engine cooling. This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.
• 10214210Jan 11, 2022Equipment, Electrical system. This technical bulletin provides repair information to correct a customer concern of Unable to Set PIN to Enable Teen Driver Feature.
• 10214204Jan 11, 2022Equipment, Engine cooling. This informational bulletin explains how the regen works for the DEF system and how it works at different levels.
• 10212625Jan 11, 2022Engine cooling. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
• 10213760Jan 10, 2022Brakes. This service bulletin provides information for tire pressure monitoring (TPM) system concerns.
• 10212616Jan 10, 2022Engine cooling. This informational bulletin explains how to identify possible DEF contamination.
• 10212611Jan 10, 2022Fuel system. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.
• 10212594Jan 10, 2022Equipment. This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
• 10213758Jan 7, 2022Fuel system. This service bulletin provides information on availability of Diesel Fuel additives.
• 10212608Jan 7, 2022Engine cooling. This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.
• 10212588Jan 6, 2022Other or unknown, Engine cooling. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10208013Jan 6, 2022Transmission and drivetrain, Equipment. This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
• 10208012Jan 6, 2022Back-over prevention (rear camera), Electrical system. 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."
• 10213764Jan 5, 2022Equipment. This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
• 10213767Jan 4, 2022Equipment. 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.
• 10213759Jan 4, 2022Fuel system. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
• 10213757Jan 4, 2022Tires. This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate ride characteristics of GM cars and trucks.
• 10212558Dec 17, 2021Equipment, Engine. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
• 10212564Dec 16, 2021Air bags. 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.
• 10207914Dec 16, 2021Engine cooling, Other or unknown. THis technical bulletin provides a procedure to perform a cooling system flush to remove possible debris from the cooling system pipes.
• 10206734Dec 16, 2021Forward collision avoidance, Lane departure. This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an internal issue with the front view windshield camera. Dealers are to replace the camera.
• 10206733Dec 16, 2021Equipment, Engine cooling. This Preliminary information communicates to the dealer an issue where a vehicle may be exhibiting an engine noise condiion. The dealer is instructed on how to isolate the noise to a specific area of the engine for further diagnosis.
• 10207917Dec 14, 2021Engine cooling, Exterior lighting. This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set.
• 10206726Dec 14, 2021Engine cooling. 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
• 10207916Dec 13, 2021Exterior lighting, Electrical system, Engine cooling. This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.

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