Subaru Ascent Service Bulletins (2024)

229 manufacturer communications on file.

• October 5, 2026•Document ID: 11037943

  Other
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  SubaruNet Announcement (M

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides information on a new software update for the Midtronics Dss and DCA machines.

  Associated Products (183)

  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+ 163 more
  Associated Documents

  • DownloadMC-11037943-0001.pdf↗
• September 29, 2026•Document ID: 11037945

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  07-244-26

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This Bulletin provides a repair procedure for increased dark current and unintended battery discharge that occurs in a small number of unique cases.

  Associated Products (6)

  2024 Subaru Ascent2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent2020 Subaru Ascent2019 Subaru Ascent
  Associated Documents

  • DownloadMC-11037945-0001.pdf↗
• September 29, 2026•Document ID: 11037946

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  09-141-26

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced acceleration, or lack of power when driving uphill or under heavy engine load.

  Associated Products (8)

  2026 Subaru Ascent2025 Subaru Ascent2024 Subaru Ascent2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent2020 Subaru Ascent2019 Subaru Ascent
  Associated Documents

  • DownloadMC-11037946-0001.pdf↗
• September 28, 2026•Document ID: 11037942

  Other
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  SubaruNet Announcement (T

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.

  Associated Products (59)

  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+ 39 more
  Associated Documents

  • DownloadMC-11037942-0001.pdf↗
• September 18, 2026•Document ID: 11037940

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  13-109-26

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides paint code information for 2027 model year vehicles.

  Associated Products (183)

  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+ 163 more
  Associated Documents

  • DownloadMC-11037940-0001.pdf↗
• September 15, 2026•Document ID: 11037921

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER

  Mfr Comm. #:

  12-268-25R

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces a repair procedure developed to address cases of the driver side mirror glass vibrating at highway speeds.This is an revised version of the original bulletin.

  Associated Products (7)

  2026 Subaru Outback2025 Subaru Ascent2025 Subaru Crosstrek2025 Subaru Impreza2024 Subaru Ascent2024 Subaru Crosstrek2024 Subaru Impreza
  Associated Documents

  • DownloadMC-11037921-0001.pdf↗
• September 15, 2026•Document ID: 11037930

  Other
  UNKNOWN OR OTHER

  Mfr Comm. #:

  SubaruNet Announcement (C

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides an update to all 2027 model year Subaru warranty coverages for wear items and adjustments.

  Associated Products (183)

  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+ 163 more
  Associated Documents

  • DownloadMC-11037930-0001.pdf↗
• September 14, 2026•Document ID: 11037927

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-304-22R

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the original bulletin.

  Associated Products (183)

  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+ 163 more
  Associated Documents

  • DownloadMC-11037927-0001.pdf↗
• September 14, 2026•Document ID: 11037929

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-333-25R

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin.

  Associated Products (183)

  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+ 163 more
  Associated Documents

  • DownloadMC-11037929-0001.pdf↗
• September 4, 2026•Document ID: 11037923

  Other
  UNKNOWN OR OTHER

  Mfr Comm. #:

  SubaruNet Announcement (W

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This announcement provides an update to the WRH-26 certification label recall.

  Associated Products (11)

  2026 Subaru Ascent2026 Subaru Crosstrek2026 Subaru Forester2025 Subaru Ascent2025 Subaru Forester2024 Subaru Ascent2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent2020 Subaru Ascent2019 Subaru Ascent
  Associated Documents

  • DownloadMC-11037923-0001.pdf↗
• September 4, 2026•Document ID: 11037925

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  12-258-25R

  Date Added:

  October 5, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be used when working with sunroof seals and sunroof frame assemblies on Ascent models. This is an revised version of the original bulletin.

  Associated Products (8)

  2026 Subaru Ascent2025 Subaru Ascent2024 Subaru Ascent2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent2020 Subaru Ascent2019 Subaru Ascent
  Associated Documents

  • DownloadMC-11037925-0001.pdf↗
• August 31, 2026•Document ID: 11036819

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-342-26

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces an inspection procedure for the Smart Rear View Mirror Assembly.

  Associated Products (5)

  2025 Subaru Ascent2025 Subaru Forester2025 Subaru Outback2024 Subaru Ascent2024 Subaru Outback
  Associated Documents

  • DownloadMC-11036819-0001.pdf↗
• August 25, 2026•Document ID: 11036817

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  WRH-26R

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  Subaru of America, Inc. (Subaru) has initiated a non-compliance recall for certain 2026 model year Crosstrek Hybrid vehicles, 2025-2026 model year Forester & Forester Hybrid vehicles, and 2019- 2026 Ascent vehicles due to incorrect information listed on the certification label. This is an revised version of the original bulletin.

  Associated Products (11)

  2026 Subaru Ascent2026 Subaru Crosstrek2026 Subaru Forester2025 Subaru Ascent2025 Subaru Forester2024 Subaru Ascent2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent2020 Subaru Ascent2019 Subaru Ascent
  Associated Documents

  • DownloadMC-11036817-0001.pdf↗
• August 21, 2026•Document ID: 11036804

  Other
  ELECTRICAL SYSTEM; POWER TRAIN

  Mfr Comm. #:

  SubaruNet Announcement (C

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This Announcement provides diagnostic assistance for CVT issues.

  Associated Products (59)

  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+ 39 more
  Associated Documents

  • DownloadMC-11036804-0001.pdf↗
• August 20, 2026•Document ID: 11036811

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  02-196-26R

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup. This is an revised version of the original bulletin.

  Associated Products (26)

  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+ 6 more
  Associated Documents

  • DownloadMC-11036811-0001.pdf↗
• August 20, 2026•Document ID: 11036809

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16-154-25R

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin announces the release of a new diagnostic assistance application for TR690 and TR580 CVT-equipped vehicles. This is an revised version of the original bulletin.

  Associated Products (55)

  2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru Outback2025 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 Crosstrek+ 35 more
  Associated Documents

  • DownloadMC-11036809-0001.pdf↗
• August 20, 2026•Document ID: 11036808

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16-150-24R

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces availability of new reprogramming files developed to address SYMPTOM 1: A jerk or judder sensation felt from the powertrain during braking with the air conditioning on. SYPMTOM 2: A shudder is felt from the powertrain along with a screeching type of sound. This is an revised version of the original bulletin.

  Associated Products (19)

  2024 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 Ascent2021 Subaru Legacy2021 Subaru Outback2020 Subaru Ascent2020 Subaru Legacy2020 Subaru Outback2019 Subaru Ascent
  Associated Documents

  • DownloadMC-11036808-0001.pdf↗
• August 20, 2026•Document ID: 11036807

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-308-23R

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  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.This is an revised version of the original bulletin.

  Associated Products (183)

  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+ 163 more
  Associated Documents

  • DownloadMC-11036807-0001.pdf↗
• August 20, 2026•Document ID: 11036803

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-305-22R

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces a 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. This is an revised version of the original bulletin.

  Associated Products (21)

  2026 Subaru Ascent2026 Subaru Crosstrek2026 Subaru Forester2026 Subaru Impreza2026 Subaru WRX2025 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 Legacy+ 1 more
  Associated Documents

  • DownloadMC-11036803-0001.pdf↗
• August 13, 2026•Document ID: 11036796

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-304-22R

  Date Added:

  September 3, 2026

  Manufacturer:

  SUBARU

  Summary

  This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. (This is an revised version of the original bulletin.)

  Associated Products (183)

  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+ 163 more
  Associated Documents

  • DownloadMC-11036796-0001.pdf↗