2021 GMC Yukon Technical Service Bulletins

1,240 technical service bulletins (TSBs) are on record for the 2021 GMC Yukon. 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.

• 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.
• 10237845Jun 1, 2023Equipment, Electrical system. This service bulletin provides repair information to correct a customer concern of Black Radio Display Screen (triangle and camera with the slash through it) with DTCs B1A62 82 and 86 setting current in Video Processing Module (VPM).
• 10237842Jun 1, 2023Engine cooling. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
• 10237841Jun 1, 2023Equipment. This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).
• 10237387May 30, 2023Transmission and drivetrain. This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
• 10237349May 22, 2023Equipment. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 10237340May 22, 2023Wheels. This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).
• 10237232May 17, 2023Fuel system, Electrical system, Engine cooling. This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.
• 10237659May 15, 2023Transmission and drivetrain, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency…
• 10236318May 8, 2023Engine cooling. This service bulletin provides a procedure to replace the valve lifter and guides to correct customer concerns of Poor Engine Performance, Engine Misfires, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 Set.
• 10236073May 5, 2023Body and structure, Equipment. This technical bulletin provides multiple procedures and information in regard to possible waterleaks.
• 10236071May 5, 2023Seats, Electrical system, Air bags. This technical bulletin provides a procedure to correct the condition of Service Restraint System Message / Air Bag Warning MIL / DTC B14DC Set.
• 10236051May 4, 2023Body and structure. This technical bulletin provides a step by step procedure to replace the pressure relief valve due to Flutter Noise from Right Rear Corner of the Vehicle.
• 10236041May 3, 2023Exterior lighting. This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
• 10235799Apr 27, 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.
• 10235798Apr 25, 2023Other or unknown. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10236164Apr 24, 2023Engine 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
• 10235802Apr 24, 2023Engine cooling. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
• 10235759Apr 21, 2023Transmission and drivetrain. This service bulletin provides diagnostic information for technicians in cases of an ETRS system fault or a no start condition - If the vehicle needs to be moved, it is recommended to use wheel dollies, tire skates or the NEW Manual Park Release tool DT-52910.
• 10235716Apr 21, 2023Wheels. This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).
• 10235766Apr 19, 2023Engine cooling. This service bulletin provides a procedure to replace the valve lifter and guides to correct customer concerns of Poor Engine Performance, Engine Misfires, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 Set.
• 10235713Apr 19, 2023Equipment. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 10235758Apr 17, 2023Transmission and drivetrain, Electrical system. This informational bulletin provides a possibly source of corrosion in the RDM electrical wiring harness and connector.
• 10235757Apr 17, 2023Engine cooling. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
• 10235617Apr 11, 2023Electrical system, Brakes. This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad replacement, or any other repair that requires the caliper piston to be reseated may be causing DTC C05B0 to falsely set for eBoost applications.
• 10234621Apr 6, 2023Other or unknown, Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10234620Apr 6, 2023Equipment. This service bulletin provides information on proper use of floor mats.
• 10234619Apr 6, 2023Transmission and drivetrain. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
• 10235397Apr 5, 2023Engine cooling, Fuel system. This service bulletin explains how to identify possible DEF system contamination.
• 10234623Apr 5, 2023Engine cooling. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
• 10235561Apr 4, 2023Steering, Engine cooling, Body and structure, Transmission and drivetrain…. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
• 10235402Apr 4, 2023Electrical system, Equipment. This service bulletin provides repair information to update radio software to correct customer concerns of Software related issues.
• 10235398Apr 4, 2023Equipment, Electrical system, Engine cooling. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 10235405Apr 3, 2023Electrical system, Equipment. 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.
• 10234168Mar 31, 2023Equipment, Body and structure. This technical bulletin has you remove flash and reinstall clip to correct condition of Arm Rest Does Not Lock in Position and Slides Back and Forth.
• 10234171Mar 30, 2023Engine cooling. This bulletin provides diagnostic information when checking the exhaust system for leaks.
• 10234163Mar 23, 2023Equipment, Electrical system. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.
• 10234153Mar 23, 2023Electrical system, Equipment, Body and structure. This technical bulletin provides repair information to correct a customer concern of Articulating Running Board Inoperable.
• 10234141Mar 23, 2023Engine cooling. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
• 10234146Mar 22, 2023Equipment, Electrical system. This service bulletin provides a procedure to update the calibrations after Window Regulator electronics or window motor replacement.
• 10234143Mar 22, 2023Transmission and drivetrain. This technical bulletin provides a procedure to replace the rear differential fluid to correct the rear clutches from chattering, which create a moan type noise.
• 10234150Mar 20, 2023Electrical system, Engine cooling. This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.
• 10234147Mar 20, 2023Equipment, Body and structure. This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).
• 10234144Mar 20, 2023Engine cooling, Electrical system, Wheels, Fuel system. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
• 10234142Mar 20, 2023Engine cooling. This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.
• 10234139Mar 20, 2023Fuel system. This service bulletin provides information on availability of Diesel Fuel additives.
• 10234110Mar 17, 2023Engine cooling. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
• 10234109Mar 17, 2023Transmission and drivetrain, Electrical system. This service bulletin provides information for the technician that may experience a condition when after performing a DTC Clear/Reset on the TCM during diagnosis or after completion of a transmission repair or replacement, the DTCs did not clear or appear to reset on the next engine start.
• 10233969Mar 17, 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.
• 10233835Mar 17, 2023Engine cooling. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

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