2020 GMC Sierra 2500 Technical Service Bulletins

1,392 technical service bulletins (TSBs) are on record for the 2020 GMC Sierra 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.

• 10222205Sep 9, 2022Engine cooling. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
• 10222661Sep 8, 2022Equipment, Electrical system. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
• 10222652Sep 8, 2022Engine cooling. This informational bulletin provides information on higher than expected oil consumption.
• 10222669Sep 7, 2022Wheels. This informational bulletin advises the tech of a different tire/rim option that can be used to correct the customers concern.
• 10222663Sep 7, 2022Equipment, Electrical system. This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or Returning to Default Values.
• 10222651Sep 7, 2022Engine cooling. This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions.
• 10220320Sep 2, 2022Engine cooling. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Service Engine Soon (SES) Lamp illuminated and/or “Service Emissions System” message on the Driver Information Center (DIC).
• 10224273Sep 1, 2022Transmission and drivetrain. This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
• 10220319Sep 1, 2022Transmission and drivetrain. This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine or transmission.
• 10220308Sep 1, 2022Equipment. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
• 10219389Aug 30, 2022Equipment. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs (North America ONLY).
• 10219277Aug 26, 2022Engine cooling. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
• 10219284Aug 25, 2022Equipment. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
• 10219291Aug 23, 2022Transmission and drivetrain. 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.
• 10219278Aug 22, 2022Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10219267Aug 16, 2022Equipment. This technical bulletin provides repair information to correct a customer concern of 360 Camera Views go Blank with Tailgate Removed.
• 10219269Aug 15, 2022Electrical system. This technical bulletin provides a procedure to install 2 way tape to correct a condition of Trailering Connector Loose Within Rear Bumper.
• 10219266Aug 15, 2022Engine cooling. This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
• 10218882Aug 10, 2022Transmission and drivetrain. This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if no problem was found, to replace the tbv.
• 10218873Aug 10, 2022Fuel system, Engine cooling. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
• 10218887Aug 9, 2022Equipment. This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
• 10218876Aug 9, 2022Exterior lighting, Electrical system. This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit.
• 10217923Aug 1, 2022Engine cooling, Fuel system. This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.
• 10217116Jul 28, 2022Equipment. This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of software related issues.
• 10217111Jul 26, 2022Transmission and drivetrain. This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if no problem was found, to replace the tbv.
• 10217782Jul 25, 2022Equipment. This Preliminary information communicates information on correcting a rattle noise on driver side of cowl heat shield.
• 10217043Jul 22, 2022Equipment. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 10217069Jul 21, 2022Engine cooling. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
• 10217050Jul 19, 2022Suspension. This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts).
• 10217048Jul 18, 2022Equipment. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
• 10217764Jul 5, 2022Equipment, Brakes, Electrical system. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
• 10217762Jul 1, 2022Tires, Equipment. 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.
• 10215655Jun 28, 2022Equipment. This warranty admin bulletin covers information on Essential Tools that include Consumable Parts.
• 10215643Jun 27, 2022Equipment, Engine cooling, Visibility (wipers, defrost, mirrors). This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
• 10215628Jun 24, 2022Equipment. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
• 10215629Jun 23, 2022Engine cooling, Electrical system. This service bulletin provides information for U.S. dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
• 10216372Jun 22, 2022Visibility (wipers, defrost, mirrors). This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
• 10215626Jun 21, 2022Equipment. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen.
• 10214710Jun 17, 2022Equipment. This technical bulletin provides repair information to correct a customer concern of Black Radio Display Screen and No Communication with the Video Processing Module (VPM).
• 10216366Jun 16, 2022Engine. This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time.
• 10214869Jun 15, 2022Engine cooling. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
• 10214858Jun 15, 2022Transmission and drivetrain. This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
• 10214860Jun 14, 2022Electrical system. This informational bulletin advises the technician to check for faults that may be caused by the trailer other wise found by a possible faulty trailer connector.
• 10214859Jun 14, 2022Visibility (wipers, defrost, mirrors). This technical bulletin provides a procedure to install a pice of foam between the heater core pipes to correct the customers concern.
• 10216361Jun 13, 2022Visibility (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.
• 10216358Jun 9, 2022Back-over prevention (rear camera). This Preliminary information communicates diagnostics aids for rear view camera issues that may be encountered.
• 10214502Jun 9, 2022Engine cooling, Electrical system. This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
• 10214510Jun 8, 2022Engine cooling. This engineering information (EI) closure ends the need for further information from the field in regards Service Emission System and/or DEF Level Low message on driver information center (DIC).
• 10214501Jun 6, 2022Wheels. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10216352Jun 2, 2022Fuel system, Electrical system. This Preliminary information communicates to the dealership technician a change made to the wire harness and reductant control module for the Diesel Exhaust Fluid tank connector.

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