2021 GMC Yukon XL Technical Service Bulletins

1,234 technical service bulletins (TSBs) are on record for the 2021 GMC Yukon XL. 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.

• 10186095Dec 15, 2020Engine cooling, Equipment, Fuel system. This technical bulletin provides a procedure to replace the fuel filter and perform a filter life procedure if found the reason for a failed fuel filter life reset during ECM transfer of data.
• 10186049Dec 15, 2020Equipment, Air bags, Electrical system. Customer Satisfaction Program (Revised Service Procedure and Part Ordering Information). In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service Restraints…
• 10187185Dec 14, 2020Engine 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.
• 10185734Dec 14, 2020Engine 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.
• 10187375Dec 11, 2020Engine cooling. This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in Drive concern.
• 10187182Dec 11, 2020Equipment. This Preliminary information communicates to the technician a possible cause of a P2B60 as terminal corrosiosn and provides a correction
• 10187181Dec 11, 2020Back-over prevention (rear camera). This Preliminary information communicates to the technition instructions to replace the particulate matter sensor for a P1488 and to use the special labor operation for tracking purposes.
• 10187180Dec 11, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
• 10186061Dec 11, 2020Engine cooling, Equipment. This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in Drive concern.
• 10185731Dec 11, 2020Equipment. This Preliminary information communicates to the technician a possible cause of a P2B60 as terminal corrosiosn and provides a correction
• 10185730Dec 11, 2020Back-over prevention (rear camera). This Preliminary information communicates to the technition instructions to replace the particulate matter sensor for a P1488 and to use the special labor operation for tracking purposes.
• 10185729Dec 11, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
• 10187177Dec 10, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
• 10185726Dec 10, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
• 10187627Dec 8, 2020Engine cooling, Equipment. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10187414Dec 8, 2020Visibility (wipers, defrost, mirrors), Body and structure. This technical bulletin provides repair information to correct a customer concern of a gurgle or sloshing noise heard coming from the front sunroof drain hose areas.
• 10186106Dec 8, 2020Equipment, Engine cooling. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10186087Dec 8, 2020Visibility (wipers, defrost, mirrors), Equipment. This technical bulletin provides repair information to correct a customer concern of a gurgle or sloshing noise heard coming from the front sunroof drain hose areas.
• 10187393Dec 7, 2020Equipment. This informational bulletin provides information for dealers/technicians on the false setting of DTC U0212.
• 10187167Dec 7, 2020Seat belts, Steering. This Preliminary information communicates an issue with a service column lock message with DTC U3000 sym71,72 or 96 and engineering released updated software to correct this concern.
• 10187166Dec 7, 2020Seats, Air bags. This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting caused by high resistance at the F106DA Driver's front seat inboard air bag connector. Dealers are to replace the F106DA Driver's front seat inboard air bag connector pigtail.
• 10186079Dec 7, 2020Electrical system, Equipment. This informational bulletin provides information for dealers/technicians on the false setting of DTC U0212.
• 10185716Dec 7, 2020Steering, Seat belts. This Preliminary information communicates an issue with a service column lock message with DTC U3000 sym71,72 or 96 and engineering released updated software to correct this concern.
• 10185715Dec 7, 2020Seats, Air bags. This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting caused by high resistance at the F106DA Driver's front seat inboard air bag connector. Dealers are to replace the F106DA Driver's front seat inboard air bag connector pigtail.
• 10187394Dec 4, 2020Tires. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10186080Dec 4, 2020Tires. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10187164Dec 3, 2020Electrical system. This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering is working on releasing updated BCM cals to correct the concern.
• 10185713Dec 3, 2020Electrical system. This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering is working on releasing updated BCM cals to correct the concern.
• 10187614Dec 2, 2020Electrical system, Seats, Equipment, Engine cooling. Customer Satisfaction Program (VINS re-opened, software updated). In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service Restraints System?
• 10187613Dec 2, 2020Engine cooling, Equipment, Electrical system, Air bags, Seats. Customer Satisfaction Program (Revised Correction, Service Procedure and Warranty Information). In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service…
• 10187341Dec 2, 2020Air bags. Customer Satisfaction Program (Revised Correction, Service Procedure and Warranty Information). In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards.
• 10187209Dec 2, 2020Electrical system, Air bags, Engine cooling, Equipment. Customer Satisfaction Program (Revised Correction, Service Procedure and Warranty Information). In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service…
• 10187160Dec 2, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the power liftgate inoperative and engineering working on the issue.
• 10187159Dec 2, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
• 10186047Dec 2, 2020Equipment, Air bags. Customer Satisfaction Program (Revised Correction, Service Procedure and Warranty Information). In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service…
• 10185709Dec 2, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the power liftgate inoperative and engineering working on the issue.
• 10185708Dec 2, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
• 10187626Dec 1, 2020Equipment. This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only).
• 10187611Dec 1, 2020Electrical system, Air bags, Seats, Equipment. Customer Satisfaction Program. In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service Restraints System? message to the driver before resistance at the…
• 10187372Dec 1, 2020Transmission and drivetrain. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
• 10187339Dec 1, 2020Air bags. Customer Satisfaction Program. In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service Restraints System? message to the driver before resistance at the…
• 10187207Dec 1, 2020Equipment, Air bags, Engine cooling, Electrical system. Customer Satisfaction Program. In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service Restraints System? message to the driver before resistance at the…
• 10187157Dec 1, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets turning off during an Auto Stop event, which is normal operation.
• 10186105Dec 1, 2020Equipment. This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only).
• 10186058Dec 1, 2020Transmission and drivetrain, Electrical system. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
• 10186045Dec 1, 2020Air bags, Electrical system, Equipment. Customer Satisfaction Program. In certain vehicles, driver movement can disrupt the electrical connection to the seat-mounted inboard airbag system. This airbag system is supplemental and not required equipment under applicable Federal Motor Vehicle Safety Standards. If this occurs, the vehicle?s driver information center will display a ?Service Restraints System? message to the driver before resistance at the…
• 10185706Dec 1, 2020Transmission and drivetrain. This Preliminary information communicates an issue with the 110 volt power outlets turning off during an Auto Stop event, which is normal operation.
• 10184518Nov 30, 2020Air bags. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the airbag lamp illuminated on the driver?s information center (DIC).
• 10184143Nov 30, 2020Equipment, Suspension. This Preliminary information communicates an issue with how to properly inspect and ensure the air lines for the air suspension system are fully seated.
• 10184521Nov 25, 2020Engine cooling, Electrical system. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service Engine Soon Lamp being illuminated.

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