Subaru Forester Service Bulletins (2023)

259 manufacturer communications on file.

• October 12, 2023•Document ID: 10244897

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  09-104-23R

  Date Added:

  November 6, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces availability of reprogramming files for the Engine Control Module (ECM) to address rare cases of DTCs P0011 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 1) and P0021 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 2) detected by the ECM. The new files contain enhanced logic to optimize the detection parameters of DTCs P0011 & P0023.

  Associated Products (1)

  2023 Subaru Forester
  Associated Documents

  • DownloadMC-10244897-0001.pdf↗
• October 9, 2023•Document ID: 10244906

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

  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 (38)

  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 Outback2020 Subaru Ascent2020 Subaru Crosstrek2020 Subaru Forester2020 Subaru Impreza+ 18 more
  Associated Documents

  • DownloadMC-10244906-0001.pdf↗
• October 6, 2023•Document ID: 10244891

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  07-218-23R

  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 (5)

  2023 Subaru Forester2022 Subaru Forester2021 Subaru Forester2020 Subaru Forester2019 Subaru Forester
  Associated Documents

  • DownloadMC-10244891-0001.pdf↗
• October 2, 2023•Document ID: 10244889

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-236-18R

  Date Added:

  November 6, 2023

  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 (27)

  2023 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 WRX2020 Subaru Ascent2020 Subaru BRZ2020 Subaru Crosstrek2020 Subaru Forester2020 Subaru Impreza2020 Subaru WRX2019 Subaru Ascent+ 7 more
  Associated Documents

  • DownloadMC-10244889-0001.pdf↗
• September 28, 2023•Document ID: 10243401

  Service Bulletin/Repair Instructions
  SEATS; ELECTRICAL SYSTEM

  Mfr Comm. #:

  12-299-20R

  Date Added:

  October 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces a design change made to the outer hinge cover on the driver’s 10-way adjustable power seats.

  Associated Products (17)

  2023 Subaru Forester2023 Subaru WRX2022 Subaru Forester2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Legacy2021 Subaru Outback2020 Subaru Crosstrek2020 Subaru Forester2020 Subaru Legacy2020 Subaru Outback2019 Subaru Crosstrek2019 Subaru Forester2018 Subaru Crosstrek
  Associated Documents

  • DownloadMC-10243401-0001.pdf↗
• September 12, 2023•Document ID: 10243393

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  12-248-23R

  Date Added:

  October 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin announces the repair procedure developed to address rattle-type sounds heard from the left and/or right B-Pillar area.

  Associated Products (13)

  2023 Subaru Forester2023 Subaru Legacy2023 Subaru Outback2022 Subaru Forester2022 Subaru Legacy2022 Subaru Outback2021 Subaru Forester2021 Subaru Legacy2021 Subaru Outback2020 Subaru Forester2020 Subaru Legacy2020 Subaru Outback2019 Subaru Forester
  Associated Documents

  • DownloadMC-10243393-0001.pdf↗
• August 31, 2023•Document ID: 10241846

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-282-21R

  Date Added:

  September 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin announces additional diagnostic procedures and a detailed flow chart to be used when diagnosing customer concerns regarding the operation of the STARLINK Remote Engine Start (RES) feature.

  Associated Products (51)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru XV CrossTrek2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru Solterra2023 Subaru WRX2023 Subaru XV CrossTrek2022 Subaru Ascent2022 Subaru BRZ+ 31 more
  Associated Documents

  • DownloadMC-10241846-0001.pdf↗
• August 31, 2023•Document ID: 10241845

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  07-221-23

  Date Added:

  September 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the repair procedures when corrosion is encountered within the instrument panel wiring harness and the rear wiring harness connectors.

  Associated Products (19)

  2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru WRX2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2020 Subaru Crosstrek2020 Subaru Forester2020 Subaru Impreza2019 Subaru Crosstrek2019 Subaru Forester2019 Subaru Impreza2018 Subaru Crosstrek2018 Subaru Impreza2017 Subaru Impreza
  Associated Documents

  • DownloadMC-10241845-0001.pdf↗
• August 10, 2023•Document ID: 10241808

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

  Mfr Comm. #:

  07-218-23R

  Date Added:

  September 5, 2023

  Manufacturer:

  SUBARU

  Summary

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

  Associated Products (5)

  2023 Subaru Forester2022 Subaru Forester2021 Subaru Forester2020 Subaru Forester2019 Subaru Forester
  Associated Documents

  • DownloadMC-10241808-0001.pdf↗
• August 1, 2023•Document ID: 10241801

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT; LATCHES/LOCKS/LINKAGES

  Mfr Comm. #:

  01-168-09R

  Date Added:

  September 5, 2023

  Manufacturer:

  SUBARU

  Summary

  The purpose of this bulletin is to provide replacement key and immobilizer information along with an overview of the Subaru Lock Information web-site.

  Associated Products (162)

  2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru Solterra2023 Subaru WRX2023 Subaru XV CrossTrek2022 Subaru Ascent2022 Subaru BRZ2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2022 Subaru XV CrossTrek2021 Subaru Ascent+ 142 more
  Associated Documents

  • DownloadMC-10241801-0001.pdf↗
• August 1, 2023•Document ID: 10241798

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

  Mfr Comm. #:

  07-222-23R

  Date Added:

  September 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the availability of new reprogramming files developed to address rare cases of changes made to the climate control settings without any activation from the driver or passenger.

  Associated Products (2)

  2023 Subaru Forester2022 Subaru Forester
  Associated Documents

  • DownloadMC-10241798-0001.pdf↗
• July 13, 2023•Document ID: 10240113

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

  Mfr Comm. #:

  15-285-21R

  Date Added:

  August 2, 2023

  Manufacturer:

  SUBARU

  Summary

  This Bulletin provides reference tables and photos to use for determining the infotainment head unit supplier and generation.

  Associated Products (82)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2024 Subaru XV CrossTrek2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru Solterra2023 Subaru WRX2023 Subaru XV CrossTrek2022 Subaru Ascent2022 Subaru BRZ+ 62 more
  Associated Documents

  • DownloadMC-10240113-0001.pdf↗
• July 11, 2023•Document ID: 10240110

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  12-249-23R

  Date Added:

  August 2, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the recommended cleaning procedures to followed when encountering vehicles with long time exposure to pollen on painted surfaces on vehicles imported from Japan. This bulletin does not apply to SIA built vehicles.

  Associated Products (171)

  2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru BRZ2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX+ 151 more
  Associated Documents

  • DownloadMC-10240110-0001.pdf↗
• June 30, 2023•Document ID: 10238472

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  15-246-19R

  Date Added:

  July 3, 2023

  Manufacturer:

  SUBARU

  Summary

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

  Associated Products (21)

  2024 Subaru Ascent2024 Subaru BRZ2024 Subaru Crosstrek2024 Subaru Forester2024 Subaru Impreza2024 Subaru Legacy2024 Subaru Outback2023 Subaru BRZ2023 Subaru Forester2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru BRZ2022 Subaru Forester2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Legacy2021 Subaru Outback2020 Subaru Legacy+ 1 more
  Associated Documents

  • DownloadMC-10238472-0001.pdf↗
• June 29, 2023•Document ID: 10238470

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-240-19R

  Date Added:

  July 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns.

  Associated Products (32)

  2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2022 Subaru Ascent2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback2020 Subaru Ascent2020 Subaru Crosstrek2020 Subaru Forester2020 Subaru Impreza2020 Subaru Legacy+ 12 more
  Associated Documents

  • DownloadMC-10238470-0001.pdf↗
• June 28, 2023•Document ID: 10238456

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  16-132-20R

  Date Added:

  July 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions used in the models listed.

  Associated Products (35)

  2023 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 Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback2020 Subaru Ascent2020 Subaru Crosstrek+ 15 more
  Associated Documents

  • DownloadMC-10238456-0001.pdf↗
• June 13, 2023•Document ID: 10238440

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CVT; ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

  Mfr Comm. #:

  16-136-22R

  Date Added:

  July 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration.

  Associated Products (40)

  2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru BRZ2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek2021 Subaru Forester+ 20 more
  Associated Documents

  • DownloadMC-10238440-0001.pdf↗
• June 8, 2023•Document ID: 10238454

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  07-222-23

  Date Added:

  July 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the availability of new reprogramming files developed to address rare cases of changes made to the climate control settings without any activation from the driver or passenger. (Forester with Driver Monitioring System).

  Associated Products (2)

  2023 Subaru Forester2022 Subaru Forester
  Associated Documents

  • DownloadMC-10238454-0001.pdf↗
• June 6, 2023•Document ID: 10238443

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  15-236-18R

  Date Added:

  July 3, 2023

  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 (27)

  2023 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 WRX2020 Subaru Ascent2020 Subaru BRZ2020 Subaru Crosstrek2020 Subaru Forester2020 Subaru Impreza2020 Subaru WRX2019 Subaru Ascent+ 7 more
  Associated Documents

  • DownloadMC-10238443-0001.pdf↗
• June 5, 2023•Document ID: 10238438

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

  Mfr Comm. #:

  15-300-22R

  Date Added:

  July 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES). All Gen2 and Gen3 Telematics Equipped Models.

  Associated Products (40)

  2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Forester2023 Subaru Impreza2023 Subaru Legacy2023 Subaru Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru BRZ2022 Subaru Crosstrek2022 Subaru Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek2021 Subaru Forester+ 20 more
  Associated Documents

  • DownloadMC-10238438-0001.pdf↗