Subaru Ascent Service Bulletins (2021)

369 manufacturer communications on file.

• March 27, 2024•Document ID: 10252542

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-256-19R

  Date Added:

  April 3, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U) utilized in the models as listed.

  Associated Products (14)

  2024 Subaru Forester2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru WRX
  Associated Documents

  • DownloadMC-10252542-0001.pdf↗
• March 26, 2024•Document ID: 10252541

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  15-236-18R

  Date Added:

  April 3, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin addresses the reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.

  Associated Products (14)

  2024 Subaru Forester2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru WRX
  Associated Documents

  • DownloadMC-10252541-0001.pdf↗
• March 19, 2024•Document ID: 10252492

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  15-242-19R

  Date Added:

  April 3, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin has been developed for use as a quick reference tool to aid in diagnosing operational concerns of the Gen 2 Telematics system’s remote access features.

  Associated Products (34)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru Solterra2024 Subaru WRX2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru Solterra2023 Subaru WRX2022 Subaru Ascent2022 Subaru BRZ+ 14 more
  Associated Documents

  • DownloadMC-10252492-0001.pdf↗
• March 19, 2024•Document ID: 10252491

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-219-18R

  Date Added:

  April 3, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin addresses an error code 202 and or 204 when attempting to complete the STARLINK telematics subsription process.

  Associated Products (34)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru Solterra2024 Subaru WRX2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru Solterra2023 Subaru WRX2022 Subaru Ascent2022 Subaru BRZ+ 14 more
  Associated Documents

  • DownloadMC-10252491-0001.pdf↗
• March 11, 2024•Document ID: 10252453

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  05-90-24R

  Date Added:

  April 2, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces changes in design to the front strut assemblies which will address cases of rumbling and/or rattling coming from the undercarriage while going over bumps.

  Associated Products (3)

  2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10252453-0001.pdf↗
• March 5, 2024•Document ID: 10252454

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-225-22R

  Date Added:

  April 2, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides the diagnostic procedure for Harman Infotainment Systems when DTC B2255 is detected. This update should prevent unnecessary replacement of the head unit or USB cable.

  Associated Products (16)

  2024 Subaru Ascent2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2023 Subaru Ascent2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza
  Associated Documents

  • DownloadMC-10252454-0001.pdf↗
• February 5, 2024•Document ID: 10251096

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  05-90-24

  Date Added:

  March 4, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin addresses rumbling and or rattling coming from the undercarriage while traveling over bumps. Subaru has made a design change to the front strut assemblies to address this issue.

  Associated Products (3)

  2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10251096-0001.pdf↗
• January 11, 2024•Document ID: 10249606

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  15-251-19R

  Date Added:

  February 2, 2024

  Manufacturer:

  SUBARU

  Summary

  This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.

  Associated Products (24)

  2024 Subaru Ascent2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2023 Subaru Ascent2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Crosstrek+ 4 more
  Associated Documents

  • DownloadMC-10249606-0001.pdf↗
• January 9, 2024•Document ID: 10249605

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  15-256-19R

  Date Added:

  February 2, 2024

  Manufacturer:

  SUBARU

  Summary

  This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U) utilized in the models as listed.

  Associated Products (14)

  2024 Subaru Forester2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru WRX
  Associated Documents

  • DownloadMC-10249605-0001.pdf↗
• December 8, 2023•Document ID: 10248193

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  15-236-18R

  Date Added:

  January 3, 2024

  Manufacturer:

  SUBARU

  Summary

  The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.

  Associated Products (14)

  2024 Subaru Forester2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru WRX
  Associated Documents

  • DownloadMC-10248193-0001.pdf↗
• November 27, 2023•Document ID: 10246138

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  09-106-23R

  Date Added:

  December 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces design changes made to the Exhaust Pipe Front (EPF) to address concerns of rattle-type or fluttering sounds coming from the undercarriage during acceleration caused by cracking in the EPF.

  Associated Products (11)

  2023 Subaru Ascent2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-10246138-0001.pdf↗
• November 15, 2023•Document ID: 10246109

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-232-23

  Date Added:

  December 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin announces the revised break-in procedure for the A/C compressor.

  Associated Products (14)

  2023 Subaru Crosstrek2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-10246109-0001.pdf↗
• November 9, 2023•Document ID: 10246093

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:HATCHBACK/LIFTGATE; LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM

  Mfr Comm. #:

  12-251-23

  Date Added:

  December 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the initialization service procedures to be followed when diagnosing and/or repairing Power Rear Gate (PRG) systems.

  Associated Products (9)

  2023 Subaru Ascent2023 Subaru Forester2023 Subaru Outback2022 Subaru Ascent2022 Subaru Forester2022 Subaru Outback2021 Subaru Ascent2021 Subaru Forester2021 Subaru Outback
  Associated Documents

  • DownloadMC-10246093-0001.pdf↗
• November 8, 2023•Document ID: 10246084

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  16-144-23

  Date Added:

  December 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the availability new service procedure developed for the diagnosis of the following DTCs detected by the Transmission Control Module (TCM):

  Associated Products (3)

  2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10246084-0001.pdf↗
• November 7, 2023•Document ID: 10246083

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  09-110-23R

  Date Added:

  December 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM).

  Associated Products (19)

  2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback2021 Subaru WRX
  Associated Documents

  • DownloadMC-10246083-0001.pdf↗
• October 26, 2023•Document ID: 10244903

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; COMMUNICATION:MANUFACTURER TELEMATICS; EQUIPMENT

  Mfr Comm. #:

  15-266-20R

  Date Added:

  November 6, 2023

  Manufacturer:

  SUBARU

  Summary

  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.

  Associated Products (32)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru Solterra2023 Subaru WRX2022 Subaru Ascent2022 Subaru BRZ2022 Subaru Crosstrek2022 Subaru Forester+ 12 more
  Associated Documents

  • DownloadMC-10244903-0001.pdf↗
• October 25, 2023•Document ID: 10244909

  Service Bulletin/Repair Instructions
  SEATS; ELECTRICAL SYSTEM

  Mfr Comm. #:

  12-252-23R

  Date Added:

  November 6, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the availability of new seat ventilation blower units.

  Associated Products (7)

  2023 Subaru Ascent2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-10244909-0001.pdf↗
• October 12, 2023•Document ID: 10244907

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT

  Mfr Comm. #:

  18-225-22R

  Date Added:

  November 6, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Bulletin is to inform you of the diagnosis procedure of the Harman Infotainment System when DTC B2255 is detected.

  Associated Products (12)

  2024 Subaru Forester2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza
  Associated Documents

  • DownloadMC-10244907-0001.pdf↗
• October 9, 2023•Document ID: 10244906

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

  Mfr Comm. #:

  09-110-23

  Date Added:

  November 6, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM). If DTC P0420 is found to be stored in the ECM, follow the diagnostic procedures outlined below.

  Associated Products (16)

  2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-10244906-0001.pdf↗
• October 6, 2023•Document ID: 10244894

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  07-219-23R

  Date Added:

  November 6, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.

  Associated Products (2)

  2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10244894-0001.pdf↗