2021 Subaru Outback Technical Service Bulletins

488 technical service bulletins (TSBs) are on record for the 2021 Subaru Outback. 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.

• 11021263Jul 29, 2025Lane departure, Forward collision avoidance, Electrical system. This announcement provides information about a Subaru of America, Inc. preliminary settlement in a class action lawsuit regarding the EyeSight system in certain Subaru vehicles.
• 11021262Jul 16, 2025Electrical system. This OTA is released to address Telematic functions that may stop working after a certain amount of time from the vehicle's production.
• 11021249Jul 14, 2025Air bags, Seats, Electrical system. This announcement is to inform subscribed customers of a software update for in-vehicle multimedia system.
• 11021258Jul 10, 2025Electrical system. "This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.
• 11021246Jul 1, 2025Engine, Electrical system. This Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs.
• 11019953Jun 27, 2025Other or unknown. This announcment provides information on the release of the latest software updates to the Subaru Midtronics DSS-5000 Battery Diagnostic tool.
• 11019951Jun 26, 2025Engine, Electrical system. This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the models listed.
• 11019944Jun 24, 2025Other or unknown. This Bulletin announces the repair procedure developed to address rattle-type sounds heard from the left and/or right B-Pillar area.
• 11019943Jun 24, 2025Other or unknown. This announcement is to bring attention to the OTA for In-vehicle service appointment scheduler and In-vehicle message center.
• 11019932Jun 24, 2025Electrical system. This Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
• 11019942Jun 23, 2025Electrical system. This Service Information bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.
• 11019930Jun 23, 2025Electrical system, Seats, Air bags. Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2020-2022 model year Legacy and Outback vehicles to replace all (four) of the Occupant Detection System (ODS) sensors on the front passenger seat.
• 11018914May 29, 2025Fuel system, Engine. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).
• 11018912May 29, 2025Electrical system. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system.
• 11018909May 19, 2025Other or unknown. The purpose of this bulletin is to provide replacement key and immobilizer information along with an overview of the Subaru Lock Information web-site.
• 11018906May 14, 2025Visibility (wipers, defrost, mirrors). This bulletin announces the design change made to the Washer Tank.
• 11018899May 13, 2025Electrical system. This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.
• 11017466Apr 30, 2025Electrical system. This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
• 11017461Apr 29, 2025Body and structure, Electrical system. This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and / or the door glass either not closing or closing very slowly.
• 11017459Apr 28, 2025Body and structure. This bulletin announces a design change to the hood lock switch portion of the hood lock assembly.
• 11017452Apr 22, 2025Engine. This Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA and FB type engines.
• 11017437Apr 22, 2025Engine, Electrical system. "This bulletin announces the availability of new oxygen sensors developed to address the following Diagnostic Trouble Codes (DTCs) detected by the Engine Control Module: • P0137: O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 • P0138: O2 Sensor Circuit High Voltage Bank 1 Sensor 2 • P0140: O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2 • P0141: O2 Sensor Heater Circuit Bank 1 Sensor 2"
• 11017438Apr 14, 2025Fuel system, Engine. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).
• 11016234Mar 31, 2025Other or unknown. This Bulletin announces availability of a User Guide and an informative video to supplement the recent releases to retailers of the SOA321152 and SOA321153 Terminal Test Kits.
• 11016229Mar 27, 2025Visibility (wipers, defrost, mirrors). This announcement is in regard to the warranty extension initiated for windshields for the models listed.
• 11016180Mar 27, 2025Electrical system, Fuel system. This bulletin announces availability of new combination meter reprogramming files developed to address cases of inaccurate fuel economy displayed on the Center Information Display (CID).
• 11016233Mar 24, 2025Electrical system. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the above listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system.
• 11016224Mar 24, 2025Engine. The purpose of this bulletin is to advise of SOA’s revised Catalytic Converter Recycling Program shipping procedure.
• 11016218Mar 24, 2025Visibility (wipers, defrost, mirrors). In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the Front Windshield used in the above listed models and model years from three (3) years / 36,000 miles to eight (8) years / 100,000 miles (whichever comes first). If a customer experiences windshield damage, inspect the damage as per the guidelines supplied in this bulletin to confirm if…
• 11016215Mar 24, 2025Engine. This Bulletin announces the Service Manual Correction for the diagnostic procedures to be followed when performing diagnostic repairs for diagnostic trouble codes (DTCs) P26A6 (Engine Coolant Bypass Valve “A” Position Sensor Circuit Low) and P26A7 (Engine Coolant Bypass Valve “A” Position Sensor Circuit High). Refer to the service procedures in this bulletin when performing diagnosis on DTCs P26A6 and P26A7. This…
• 11016206Mar 18, 2025Electrical system. This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns.
• 11016205Mar 17, 2025Other or unknown. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
• 11016175Mar 13, 2025Visibility (wipers, defrost, mirrors). This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and / or the door glass either not closing or closing very slowly.
• 11016174Mar 6, 2025Body and structure. This Bulletin announces diagnostic procedures to be followed when working with a Power Rear Gate (PRG).
• 11016172Mar 6, 2025Electrical system. When attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully.
• 11016167Mar 4, 2025Air bags, Seats, Electrical system. Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2020-2022 model year Legacy and Outback vehicles to replace all (four) of the Occupant Detection System (ODS) sensors on the front passenger seat. Updates to the bulletin are to the power seat service procedure.
• 11016165Mar 4, 2025Electrical system, Engine. "This bulletin announces availability of new reprograming files for the Engine Control Module (ECM) developed to remedy the following DTCs: • P0016: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A • P0017: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B • P0018: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A • P0019: Crankshaft Position - Camshaft…
• 11014875Feb 24, 2025Fuel system. This bulletin announces the design change made to the high-pressure fuel pump developed to prevent DTC P0087 (Fuel Rail/System Pressure – Too Low Bank 1).
• 11014871Feb 18, 2025Brakes. This bulletin announces a design change made to the front brake pads developed to reduce any brake pulsation and/or vibration felt during brake operation.
• 11014870Feb 18, 2025Electrical system. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system.
• 11014859Feb 18, 2025Engine. This bulletin announces the design change made to the exhaust manifold flange nuts. The material has been changed from a medium carbon steel to stainless steel.
• 11014858Feb 18, 2025Engine. This bulletin announces the design change made to the exhaust manifold flange nuts. The material has been changed from a medium carbon steel to stainless steel.
• 11014867Feb 17, 2025Visibility (wipers, defrost, mirrors), Electrical system. This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and/or the door glass either not closing or closing very slowly.
• 11014865Feb 17, 2025Engine. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).
• 11014848Feb 13, 2025Visibility (wipers, defrost, mirrors). In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the Front Windshield used in the above listed models and model years from three (3) years / 36,000 miles to eight (8) years / 100,000 miles (whichever comes first).
• 11014854Feb 10, 2025Engine, Electrical system. This bulletin announces the availability of new reprogramming files for the Engine Control Module (ECM), to address concerns of the starter motor not operating.
• 11014852Feb 10, 2025Electrical system. "This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16."
• 11014846Feb 3, 2025Air bags, Electrical system, Seats. Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2020-2022 model year Legacy and Outback vehicles to replace all (four) of the Occupant Detection System (ODS) sensors on the front passenger seat.
• 11014842Feb 3, 2025Air bags, Seats, Electrical system. This announcment is an update on safety recall WRA-24 ODS sensor replacement. Used vehicle inventory & CPO updates.
• 11014841Feb 3, 2025Electrical system, Air bags, Seats. This announcement is an update on safety recall WRA-24 ODS sensor replacement.

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