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.

• 11004558Jun 17, 2024Other or unknown. This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).
• 11004557Jun 17, 2024Other or unknown. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
• 11002442Jun 15, 2024Engine. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
• 11002441Jun 14, 2024Engine, Electrical system. This service bulletin provides information for engine oil life monitor operation calculation.
• 11003830Jun 12, 2024Transmission and drivetrain. This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
• 11001972Jun 8, 2024Other or unknown, 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.
• 11002312Jun 6, 2024Electrical system. This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
• 11001971Jun 5, 2024Other or unknown. This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.
• 11001840May 30, 2024Electrical system, Engine. The informational bulletin advises the tech to use the glow plug bore cleaner to reduce the chance of soot building up on the glow plug causing a premature failure.
• 11001773May 25, 2024Transmission 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 customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive.
• 11001327May 17, 2024Electrical system, Engine. This service bulletin provides information for engine oil life monitor operation calculation.
• 11001380May 16, 2024Electrical 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.
• 11001328May 16, 2024Transmission and drivetrain. This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.
• 11001321May 16, 2024Transmission and drivetrain. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
• 11001325May 14, 2024Other or unknown. This warranty administration bulletin provides policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.
• 11000602May 9, 2024Other or unknown. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
• 11000494May 9, 2024Engine, Electrical system. This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.
• 11000576May 7, 2024Other or unknown. This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.
• 11000599May 6, 2024Wheels. This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.
• 11000550May 3, 2024Body and structure, Brakes, Electrical system, Exterior lighting, Other or…. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 11000549May 3, 2024Wheels. This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE) Tires and PDI installed Limited Production Option (LPO) Tires.
• 11000493May 3, 2024Electrical system, Fuel 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.
• 11000365May 3, 2024Electrical system, Engine. This technical bulletin provides service information to correct a customer concern of HVAC Heat Intermittently Inoperative, DTCs B2B05 and/or B2B06 Set.
• 11000575May 2, 2024Other or unknown. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 11000163May 1, 2024Other or unknown. This 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.
• 11000158May 1, 2024Other or unknown, Seats. This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
• 11000164Apr 30, 2024Electrical 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.
• 11000162Apr 30, 2024Electrical 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.
• 11000160Apr 30, 2024Other or unknown. This service bulletin provides information on proper use of floor mats.
• 11000157Apr 26, 2024Electrical system. This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME) FAQs.
• 11000120Apr 26, 2024Other or unknown, Electrical system. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
• 11000119Apr 26, 2024Transmission and drivetrain, Suspension, Engine. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
• 10254395Apr 25, 2024Electrical system, Engine cooling. This bulletin provides a procedure to program the ECM if the DTC is set and/or the start/stop doesn't restart after a stop.
• 10253770Apr 18, 2024Wheels. This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
• 10254014Apr 16, 2024Equipment, 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.
• 10253527Apr 10, 2024Equipment, Electrical system. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 10253528Apr 8, 2024Electrical system, Brakes, Equipment. This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.
• 10253526Apr 8, 2024Equipment, Wheels. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
• 10252988Apr 2, 2024Electrical system, Equipment. This technical bulletin provides repair information to correct a customer concern of the E88 Front Floor Console Bin Lamp Inoperative.
• 10252976Apr 2, 2024Transmission and drivetrain, Electrical system. This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are found to be the cause of the failure of the valve body.
• 10252735Mar 28, 2024Electrical system. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
• 10252745Mar 27, 2024Body and structure. This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
• 10253111Mar 26, 2024Electrical system. This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stored. Technicians are directed to replace the K111FPDCM if any of these conditions can be validated and code P023F or P129F is found.
• 10252774Mar 26, 2024Equipment, Electrical system. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 10252841Mar 25, 2024Electrical system, Equipment. This technical bulletin provides repair information to correct a customer concern of the E88 Front Floor Console Bin Lamp Inoperative.
• 10252778Mar 25, 2024Transmission 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.
• 10253098Mar 21, 2024Electrical system. This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stored. Technicians are directed to replace the K111FPDCM if any of these conditions can be validated.
• 10252126Mar 21, 2024Equipment. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).
• 10252125Mar 21, 2024Engine cooling. This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.
• 10252124Mar 21, 2024Body and structure. This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

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