2018 Subaru Impreza Technical Service Bulletins

528 technical service bulletins (TSBs) are on record for the 2018 Subaru Impreza. 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.

• 11024869Oct 28, 2025Electrical system. This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experiencing battery drain when the ignition is off, leading to no-start conditions or frequent jump-starts.
• 11024863Oct 28, 2025Other or unknown. Subaru tech tips newsletter article locator.
• 11024859Oct 28, 2025Other or unknown. Subaru tech tips newsletter article locator.
• 11024858Oct 23, 2025Electrical system. This Bulletin outlines a comprehensive update to the dark current/parasitic draw diagnosis & testing procedures.
• 11024857Oct 23, 2025Electrical system. This Bulletin provides details on a new formal testing, charging, and tracking procedure for all 12-volt batteries in new vehicle inventory.
• 11023536Sep 30, 2025Forward collision avoidance, Engine. In the interest of customer satisfaction Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage in the models listed. The extension will address instances of “phantom braking” or the EyeSight/RAB systems causing unnecessary stoppage/slowing of the vehicle.
• 11023524Sep 30, 2025Electrical system. This bulletin addresses cases when attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully.
• 11023523Sep 30, 2025Transmission and drivetrain. This bulletin announces a design change made to the CVT Control Valve Body. The updated valve body incorporates an enhanced valve sleeve to improve durability.
• 11023505Sep 5, 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.
• 11023500Sep 3, 2025Electrical system. This Bulletin provides details on a new formal testing, charging, and tracking procedure for all 12-volt batteries in new vehicle inventory wjhich must be tested and reported every 30 days.
• 11022331Aug 26, 2025Electrical system. This Bulletin provides helpful procedures and best practices to utilize when customers present with concerns relating to the operation of their Gen 2/Gen 3 Telematics system equipped Subaru.
• 11022319Aug 21, 2025Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 11022313Aug 14, 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).
• 11022309Aug 13, 2025Electrical system. Subaru of America, Inc. will release an OTA to perform a software update to the DCM. This is a preventive OTA.
• 11022305Aug 11, 2025Transmission and drivetrain, Engine, Electrical system. Subaru Service Technical Support Newsletter special edition.
• 11022304Aug 11, 2025Body and structure. This bulletin provides information on paint codes for vehicles in the 2026 line up.
• 11022298Aug 7, 2025Seat belts. This Bulletin announces the availability of a new part Extender Belt. This is for customers who find it necessary to increase the length of their seat belt.
• 11021266Jul 29, 2025Electrical system. In the interest of customer satisfaction Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage in the models listed for the selected EyeSight & Reverse Automatic Braking (RAB) components.
• 11021263Jul 29, 2025Forward collision avoidance, Lane departure, 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.
• 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.
• 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.
• 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.
• 11018914May 29, 2025Engine, Fuel system. 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).
• 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.
• 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.
• 11018898May 1, 2025Exterior lighting. This is an update to WRG-22 Impreza headlamp Non-compliance recall.
• 11017466Apr 30, 2025Electrical system. This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
• 11017460Apr 29, 2025Exterior lighting. This message is to inform dealers of updates to the WRG-22 Impreza headlamp non -compliance recall.
• 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, 2025Electrical system, Engine. "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, 2025Engine, Fuel system. 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.
• 11016224Mar 24, 2025Engine. The purpose of this bulletin is to advise of SOA’s revised Catalytic Converter Recycling Program shipping procedure.
• 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.
• 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.
• 11016169Mar 6, 2025Visibility (wipers, defrost, mirrors). Update safety recall: WRG-22 Impreza headlamp non -compliance final phase mailing to owners.
• 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).
• 11014872Feb 18, 2025Transmission and drivetrain. This bulletin has been developed in response to a small number of customer concerns regarding fluid seepage found coming from the CVT assembly.
• 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).
• 11014852Feb 10, 2025Electrical system. "This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16."
• 11013550Jan 31, 2025Electrical system. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the Data Communication Module (DCM) Warranty from 3 years (36 months) of 36,000 miles to 8 years (96 months) or 100,000 miles, whichever comes first.
• 11013530Jan 31, 2025Other or unknown. This announcement is in regard to special service tool shipment will be shipped directly to the Subar retailers during February.
• 11013528Jan 29, 2025Exterior lighting. Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2017-2019 model year Impreza vehicles, which may contain non-compliant headlamp assemblies.
• 11013525Jan 28, 2025Electrical system. A head unit OTA will be available via cellular network for Mid and High Grade CP1.5 head units.
• 11013512Jan 17, 2025Fuel system, Electrical system. This bulletin announces the repair procedures to be followed when DTC P1449 (EVAP System Clog Detected) is detected by the Engine Control Module (ECM).

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