Subaru Outback Service Bulletins (2021)

457 manufacturer communications on file.

• July 28, 2026•Document ID: 11035660

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

  Mfr Comm. #:

  09-123-24R

  Date Added:

  August 4, 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). (This is an revised version of the original bulletin.)

  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-11035660-0001.pdf↗
• July 27, 2026•Document ID: 11035654

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

  Mfr Comm. #:

  09-81-21R

  Date Added:

  August 4, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces design changes made to the fuel injector in response to the DTCs listed. (This is an revised version of the original bulletin.)

  Associated Products (10)

  2025 Subaru Crosstrek2024 Subaru Crosstrek2023 Subaru Crosstrek2022 Subaru Crosstrek2022 Subaru Legacy2022 Subaru Outback2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11035654-0001.pdf↗
• July 23, 2026•Document ID: 11035653

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  16-159-26

  Date Added:

  August 4, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides new diagnostic steps for DTC P0851 and P0852 to be used in conjunction with the applicable Service Manual.

  Associated Products (24)

  2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2024 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 Outback+ 4 more
  Associated Documents

  • DownloadMC-11035653-0001.pdf↗
• June 30, 2026•Document ID: 11034269

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  02-193-24R

  Date Added:

  July 2, 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). (This is an revised version of the original bulletin.)

  Associated Products (41)

  2026 Subaru Ascent2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru WRX2025 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 WRX+ 21 more
  Associated Documents

  • DownloadMC-11034269-0001.pdf↗
• June 30, 2026•Document ID: 11034268

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-246-19R

  Date Added:

  July 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. (This is an revised version of the original bulletin.)

  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-11034268-0001.pdf↗
• June 26, 2026•Document ID: 11034264

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ENGINE

  Mfr Comm. #:

  09-74-21R

  Date Added:

  July 2, 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). (This is an revised version of the original bulletin.)

  Associated Products (41)

  2026 Subaru Ascent2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru WRX2025 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 WRX+ 21 more
  Associated Documents

  • DownloadMC-11034264-0001.pdf↗
• June 25, 2026•Document ID: 11034250

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  09-81-21R

  Date Added:

  July 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces design changes made to the fuel injector and fuel pipe in response to the DTCs listed DTC P030* / Engine Knocking / DTC P219C-D-E-F. (This is an revised version of the original bulletin.)

  Associated Products (7)

  2022 Subaru Legacy2022 Subaru Outback2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11034250-0001.pdf↗
• June 23, 2026•Document ID: 11034259

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  16-159-26

  Date Added:

  July 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides new diagnostic steps for DTC P0851 and P0852 to be used in conjunction with the applicable Service Manual.

  Associated Products (24)

  2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2024 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 Outback+ 4 more
  Associated Documents

  • DownloadMC-11034259-0001.pdf↗
• June 23, 2026•Document ID: 11034257

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  02-196-26

  Date Added:

  July 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup.

  Associated Products (22)

  2026 Subaru Ascent2026 Subaru Outback2026 Subaru WRX2025 Subaru Ascent2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Ascent2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent+ 2 more
  Associated Documents

  • DownloadMC-11034257-0001.pdf↗
• June 12, 2026•Document ID: 11034249

  Other
  UNKNOWN OR OTHER

  Mfr Comm. #:

  SubaruNet Annoucement (E

  Date Added:

  July 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement is requesting retailer staff to retain the EyeSight protective hood covers from Generation 4 EyeSight cameras.

  Associated Products (53)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru Trailseeker2026 Subaru Uncharted2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent+ 33 more
  Associated Documents

  • DownloadMC-11034249-0001.pdf↗
• June 5, 2026•Document ID: 11034271

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16-151-24R

  Date Added:

  July 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR690 model CVT transmissions used in the models listed. (This is an revised version of the original bulletin.)

  Associated Products (22)

  2026 Subaru Ascent2026 Subaru Outback2026 Subaru WRX2025 Subaru Ascent2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Ascent2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent+ 2 more
  Associated Documents

  • DownloadMC-11034271-0001.pdf↗
• June 3, 2026•Document ID: 11034243

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  09-130-25R

  Date Added:

  July 2, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the design change made to the exhaust manifold flange nut material that has been changed from stainless steel to medium carbon steel. This change also necessitates a revised tightening torque specification. (This is an revised version of the original bulletin.)

  Associated Products (8)

  2024 Subaru Ascent2024 Subaru Outback2023 Subaru Ascent2023 Subaru Outback2022 Subaru Ascent2022 Subaru Outback2021 Subaru Ascent2021 Subaru Outback
  Associated Documents

  • DownloadMC-11034243-0001.pdf↗
• June 1, 2026•Document ID: 11034237

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  18-240-26

  Date Added:

  July 1, 2026

  Manufacturer:

  SUBARU

  Summary

  "This bulletin provides a new diagnostic procedure for vehicles equipped with a Denso CP 1, 1.5 and 2.5 head units to provide an enhanced version of the troubleshooting steps for Sound does not come out from the speaker."

  Associated Products (31)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Impreza2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX+ 11 more
  Associated Documents

  • DownloadMC-11034237-0001.pdf↗
• May 28, 2026•Document ID: 11033077

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-241-26

  Date Added:

  June 1, 2026

  Manufacturer:

  SUBARU

  Summary

  This Bulletin announces a correction to the diagnostic procedures for certain CVT related DTCs, including P0730, P0746, P0747, P0841, P0846, P0867, P1867, P1894, and P2723.

  Associated Products (20)

  2024 Subaru Ascent2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2023 Subaru Ascent2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Legacy2023 Subaru Outback2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11033077-0001.pdf↗
• May 18, 2026•Document ID: 11033069

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  01-167-08R

  Date Added:

  June 1, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.

  Associated Products (53)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru Trailseeker2026 Subaru Uncharted2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent+ 33 more
  Associated Documents

  • DownloadMC-11033069-0001.pdf↗
• May 15, 2026•Document ID: 11033066

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-261-20R

  Date Added:

  June 1, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units utilized in the models listed.

  Associated Products (4)

  2022 Subaru Legacy2022 Subaru Outback2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11033066-0001.pdf↗
• May 13, 2026•Document ID: 11033065

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  02-193-24R

  Date Added:

  June 1, 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 (28)

  2024 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 Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback+ 8 more
  Associated Documents

  • DownloadMC-11033065-0001.pdf↗
• May 12, 2026•Document ID: 11033061

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN

  Mfr Comm. #:

  16-157-26

  Date Added:

  June 1, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces a design change to the TR690 CVT control valve body which features an enhanced line pressure sensor O-ring, designed to prevent abnormal sensor readings caused by O-ring leakage.

  Associated Products (18)

  2025 Subaru Ascent2025 Subaru Legacy2025 Subaru Outback2025 Subaru WRX2024 Subaru Ascent2024 Subaru Legacy2024 Subaru Outback2024 Subaru WRX2023 Subaru Ascent2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-11033061-0001.pdf↗
• May 4, 2026•Document ID: 11033056

  Other
  POWER TRAIN

  Mfr Comm. #:

  SubaruNet Announcement (R

  Date Added:

  June 1, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides information on the remanufactured CVT transmission program.

  Associated Products (53)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2026 Subaru Solterra2026 Subaru Trailseeker2026 Subaru Uncharted2026 Subaru WRX2025 Subaru Ascent2025 Subaru BRZ2025 Subaru Crosstrek2025 Subaru Forester2025 Subaru Impreza2025 Subaru Legacy2025 Subaru Outback2025 Subaru Solterra2025 Subaru WRX2024 Subaru Ascent+ 33 more
  Associated Documents

  • DownloadMC-11033056-0001.pdf↗
• May 1, 2026•Document ID: 11033051

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  18-230-26

  Date Added:

  June 1, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).

  Associated Products (45)

  2026 Subaru Ascent2026 Subaru BRZ2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru WRX2025 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 Legacy+ 25 more
  Associated Documents

  • DownloadMC-11033051-0001.pdf↗