Subaru Legacy Service Bulletins (2023)

307 manufacturer communications on file.

• March 4, 2026•Document ID: 11030561

  Other
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SubaruNet Announcement (A

  Date Added:

  April 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides information on the use of aftermarket services or tools for programming immobilizer keys/fobs.

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11030561-0001.pdf↗
• February 25, 2026•Document ID: 11029347

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  07-240-26R

  Date Added:

  March 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin was developed to provide interim guidance for 2026 model year vehicles exhibiting DTC B2A20 with gen 4 Telematics.

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11029347-0001.pdf↗
• February 13, 2026•Document ID: 11029338

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  06-95-25R

  Date Added:

  March 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the availability of new reprogramming files developed to address cases of DTC C1C40 being detected by the Electronic Brake Booster (EBB) in addition to Failure Detail Code 30A2 stored within the Freeze Frame Data (FFD).

  Associated Products (16)

  2025 Subaru Ascent2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru Crosstrek2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Ascent2023 Subaru Legacy2023 Subaru Outback
  Associated Documents

  • DownloadMC-11029338-0001.pdf↗
• February 11, 2026•Document ID: 11029335

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  WRB-26

  Date Added:

  March 3, 2026

  Manufacturer:

  SUBARU

  Summary

  In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a service program for certain 2023-2024 model year Legacy and Outback vehicles equipped with certain DCMs.

  Associated Products (4)

  2024 Subaru Legacy2024 Subaru Outback2023 Subaru Legacy2023 Subaru Outback
  Associated Documents

  • DownloadMC-11029335-0001.pdf↗
• February 10, 2026•Document ID: 11029334

  Other
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SubaruNet Announcement (W

  Date Added:

  March 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides information for the WRB-26 DCM replacement and CCU initialization service campaign - completion and parts ordering.

  Associated Products (4)

  2024 Subaru Legacy2024 Subaru Outback2023 Subaru Legacy2023 Subaru Outback
  Associated Documents

  • DownloadMC-11029334-0001.pdf↗
• February 10, 2026•Document ID: 11029333

  Other
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SubaruNet Announcement (W

  Date Added:

  March 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides information for the WRB-26 DCM replacement and CCU initialization.

  Associated Products (4)

  2024 Subaru Legacy2024 Subaru Outback2023 Subaru Legacy2023 Subaru Outback
  Associated Documents

  • DownloadMC-11029333-0001.pdf↗
• February 6, 2026•Document ID: 11029329

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  10-105-25R

  Date Added:

  March 3, 2026

  Manufacturer:

  SUBARU

  Summary

  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.

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11029329-0001.pdf↗
• January 20, 2026•Document ID: 11027996

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-305-22R

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in the models listed.

  Associated Products (19)

  2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2025 Subaru Ascent2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru Crosstrek2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Ascent2023 Subaru Legacy2023 Subaru Outback
  Associated Documents

  • DownloadMC-11027996-0001.pdf↗
• January 15, 2026•Document ID: 11027986

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  Subaru Tech Tips Special

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This Subaru service and technical support line newsletter provides information on the next phase of TechShare.

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11027986-0001.pdf↗
• January 12, 2026•Document ID: 11027984

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  05-96-26

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces design changes to the front stabilizer link to address concerns about boot cracking, which can allow grease to escape.

  Associated Products (5)

  2025 Subaru Legacy2024 Subaru Legacy2023 Subaru Legacy2022 Subaru Legacy2021 Subaru Legacy
  Associated Documents

  • DownloadMC-11027984-0001.pdf↗
• January 12, 2026•Document ID: 11027983

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-328-26

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This Bulletin provides information on the availability of a new auxiliary USB terminal designed to resolve intermittent connectivity issues when connected via the USB port.

  Associated Products (14)

  2026 Subaru Forester2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Crosstrek2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Legacy2023 Subaru Outback
  Associated Documents

  • DownloadMC-11027983-0001.pdf↗
• January 12, 2026•Document ID: 11027982

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-300-22R

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11027982-0001.pdf↗
• January 12, 2026•Document ID: 11027981

  Other
  UNKNOWN OR OTHER

  Mfr Comm. #:

  Subarunet Announcement (E

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement has been created to address difficulties with software updates on Subaru Select Monitors with DST-010 interface firmware has been updated.

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11027981-0001.pdf↗
• January 8, 2026•Document ID: 11027978

  Service Bulletin/Repair Instructions
  ENGINE; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  09-123-24

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  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).

  Associated Products (20)

  2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11027978-0001.pdf↗
• January 8, 2026•Document ID: 11027977

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-246-19R

  Date Added:

  February 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the vehicles listed.

  Associated Products (17)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2023 Subaru BRZ2023 Subaru Forester2023 Subaru Legacy2023 Subaru Outback2022 Subaru BRZ2022 Subaru Forester2022 Subaru Legacy2022 Subaru Outback2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11027977-0001.pdf↗
• December 23, 2025•Document ID: 11027103

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  15-246-19R

  Date Added:

  January 6, 2026

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on models listed.

  Associated Products (20)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru BRZ2023 Subaru Forester2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru BRZ2022 Subaru Forester2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11027103-0001.pdf↗
• December 12, 2025•Document ID: 11027090

  Service Bulletin/Repair Instructions
  ENGINE; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  09-74-21R

  Date Added:

  January 6, 2026

  Manufacturer:

  SUBARU

  Summary

  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).

  Associated Products (35)

  2025 Subaru Ascent2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Ascent2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback+ 15 more
  Associated Documents

  • DownloadMC-11027090-0001.pdf↗
• December 8, 2025•Document ID: 11027083

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-226-25R

  Date Added:

  January 6, 2026

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 (Immobilizer Key Collation Diagnosis).

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11027083-0001.pdf↗
• December 8, 2025•Document ID: 11027081

  Service Bulletin/Repair Instructions
  ENGINE; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-228-25R

  Date Added:

  January 6, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1) are detected by the Engine Control Module (ECM).

  Associated Products (39)

  2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester+ 19 more
  Associated Documents

  • DownloadMC-11027081-0001.pdf↗
• December 2, 2025•Document ID: 11027073

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-333-25

  Date Added:

  January 6, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

  Associated Products (51)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek+ 31 more
  Associated Documents

  • DownloadMC-11027073-0001.pdf↗