2021 Buick Encore Technical Service Bulletins

536 technical service bulletins (TSBs) are on record for the 2021 Buick Encore. 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.

• 11017031Mar 12, 2025Electrical system. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
• 11015567Mar 5, 2025Other or unknown. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
• 11016942Mar 4, 2025Engine. This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.
• 11015409Feb 25, 2025Wheels, Suspension. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
• 11015387Feb 22, 2025Other or unknown. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 11015382Feb 20, 2025Body and structure. This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
• 11014455Feb 20, 2025Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
• 11014577Feb 18, 2025Steering. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
• 11014563Feb 13, 2025Other or unknown. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
• 11014377Feb 12, 2025Exterior lighting. This service bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage.
• 11014230Jan 31, 2025Wheels, Electrical system, Engine, Visibility (wipers, defrost, mirrors), Brakes. 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.
• 11014171Jan 31, 2025Body and structure, Vehicle speed control. This service bulletin provides information on proper use of floor mats.
• 11014238Jan 30, 2025Body and structure, Other or unknown. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 11014233Jan 30, 2025Engine. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
• 11014239Jan 29, 2025Electrical system, Other or unknown. 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.
• 11014222Jan 28, 2025Electrical system, Other or unknown. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
• 11014170Jan 27, 2025Exterior lighting. This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
• 11013269Jan 16, 2025Body and structure, Steering, Electrical system, Seats, Engine. This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
• 11013069Jan 9, 2025Transmission and drivetrain, Electrical system, Engine. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 11012929Jan 7, 2025Electrical system. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 11012930Jan 4, 2025Other or unknown. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
• 11012690Dec 14, 2024Other or unknown. This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S. Only).
• 11011782Dec 7, 2024Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2.
• 11012189Dec 6, 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.
• 11011805Dec 6, 2024Other or unknown, Electrical system. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
• 11011989Nov 27, 2024Transmission and drivetrain. This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
• 11011996Nov 25, 2024Electrical system, Other or unknown. This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.
• 11011900Nov 22, 2024Engine. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
• 11011709Nov 5, 2024Engine, Body and structure, Wheels, Other or unknown, Brakes. 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.
• 11011367Oct 28, 2024Other or unknown, Electrical system. This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
• 11011205Oct 28, 2024Steering, Engine, Transmission and drivetrain. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
• 11011117Oct 26, 2024Exterior lighting. This service bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage.
• 11009170Oct 25, 2024Electrical system. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
• 11009156Oct 25, 2024Electrical 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.
• 11008986Oct 18, 2024Electrical system. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
• 11010901Oct 17, 2024Electrical system. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
• 11011444Oct 16, 2024Other or unknown. This Preliminary information communicates to the dealer a process for accessing the procedure to add attachments to a GM technical assistance case using the dealer case management tool.
• 11010576Oct 11, 2024Other or unknown. This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
• 11010651Oct 10, 2024Transmission and drivetrain. This service bulletin informs the technician of an alternate lift procedure that has been developed when the lift plate does not fit the top of the transmission case for 6T30, 6T35, 6T40, 6T45, and 6T50 Transmissions.
• 11010545Oct 9, 2024Other or unknown. This service bulletin provides information on key code security rules and information on GM keycode look-up applications (U.S).
• 11010493Oct 5, 2024Other or unknown, Body and structure. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 11010490Oct 5, 2024Engine. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
• 11011420Oct 4, 2024Other or unknown. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
• 11010488Oct 3, 2024Other or unknown. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.
• 11010421Oct 3, 2024Electrical system. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 11010495Oct 2, 2024Other or unknown. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 11010491Oct 2, 2024Other or unknown. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
• 11010415Oct 2, 2024Electrical system, Lane departure. This service bulletin provides a procedure to apply aluminum butyl tape around the lower side object modules and the fascia to aid in deflecting the radar away from the ground and stop triggering false alerts.
• 11009532Sep 27, 2024Engine. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
• 11009531Sep 27, 2024Engine. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

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