Subaru Ascent Service Bulletins (2021)

369 manufacturer communications on file.

• October 2, 2023•Document ID: 10244889

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

  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 (13)

  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 WRX
  Associated Documents

  • DownloadMC-10244889-0001.pdf↗
• September 28, 2023•Document ID: 10243402

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  16-136-22R

  Date Added:

  October 3, 2023

  Manufacturer:

  SUBARU

  Summary

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

  Associated Products (6)

  2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-10243402-0001.pdf↗
• September 12, 2023•Document ID: 10243392

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

  Mfr Comm. #:

  16-140-23

  Date Added:

  October 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces availability of new reprograming files for the Transmission Control Module (TCM) to address judder a sensation possibly accompanied by a vibration-type sound when accelerating from slow speeds.

  Associated Products (2)

  2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10243392-0001.pdf↗
• September 11, 2023•Document ID: 10243372

  Service Bulletin/Repair Instructions
  EQUIPMENT; FORWARD COLLISION AVOIDANCE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-231-23

  Date Added:

  October 2, 2023

  Manufacturer:

  SUBARU

  Summary

  This Bulletin announces additional information regarding error codes 1403- 1407 encountered when attempting an adjustment/calibration of the EyeSight® system after body repair procedures have been performed.

  Associated Products (16)

  2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Impreza2022 Subaru Ascent2022 Subaru BRZ2022 Subaru Crosstrek2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Crosstrek2021 Subaru Forester2021 Subaru Impreza2021 Subaru Legacy2021 Subaru Outback2021 Subaru WRX
  Associated Documents

  • DownloadMC-10243372-0001.pdf↗
• August 31, 2023•Document ID: 10241846

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

  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 (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-10241846-0001.pdf↗
• August 24, 2023•Document ID: 10241843

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  09-106-23R

  Date Added:

  September 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 crackingin the EPF.

  Associated Products (9)

  2023 Subaru Ascent2023 Subaru Legacy2023 Subaru Outback2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-10241843-0001.pdf↗
• August 21, 2023•Document ID: 10241841

  Service Bulletin/Repair Instructions
  STRUCTURE; EQUIPMENT

  Mfr Comm. #:

  12-245-23

  Date Added:

  September 5, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces the repair procedure for a rubbing-type sound that can be heard from the side of the console box when it comes in contact with a passenger’s knee or when the gear selector is moved.

  Associated Products (2)

  2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10241841-0001.pdf↗
• August 10, 2023•Document ID: 10241813

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

  Mfr Comm. #:

  07-219-23R

  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 (2)

  2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10241813-0001.pdf↗
• August 1, 2023•Document ID: 10241801

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

  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 (25)

  2023 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 Forester2022 Subaru Impreza2022 Subaru Legacy2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek+ 5 more
  Associated Documents

  • DownloadMC-10241801-0001.pdf↗
• July 31, 2023•Document ID: 10240123

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

  Mfr Comm. #:

  15-304-22R

  Date Added:

  August 2, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns.

  Associated Products (15)

  2023 Subaru Ascent2023 Subaru BRZ2023 Subaru Crosstrek2023 Subaru Outback2023 Subaru WRX2022 Subaru Ascent2022 Subaru BRZ2022 Subaru Crosstrek2022 Subaru Outback2022 Subaru WRX2021 Subaru Ascent2021 Subaru BRZ2021 Subaru Crosstrek2021 Subaru Outback2021 Subaru WRX
  Associated Documents

  • DownloadMC-10240123-0001.pdf↗
• July 18, 2023•Document ID: 10240114

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

  Mfr Comm. #:

  09-107-23

  Date Added:

  August 2, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces diagnostic procedures and availability of new Engine Control Module (ECM) reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sense Circuit Range/Performance) detection.

  Associated Products (3)

  2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10240114-0001.pdf↗
• July 13, 2023•Document ID: 10240113

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM; 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 (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-10240113-0001.pdf↗
• July 11, 2023•Document ID: 10240116

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT; POWER TRAIN

  Mfr Comm. #:

  16-141-23R

  Date Added:

  August 2, 2023

  Manufacturer:

  SUBARU

  Summary

  This bulletin announces availability of reprogramming files to optimize the Transmission Control Module (TCM). The new files were designed to address cases of DTC P0711 (Transmission Fluid Temperature Sensor “A” Circuit Range/Performance) being detected by the TCM during low ambient temperatures (32° F(0° C)).

  Associated Products (3)

  2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10240116-0001.pdf↗
• July 11, 2023•Document ID: 10240108

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  09-106-23

  Date Added:

  August 2, 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 (3)

  2023 Subaru Ascent2022 Subaru Ascent2021 Subaru Ascent
  Associated Documents

  • DownloadMC-10240108-0001.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 (15)

  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 Outback
  Associated Documents

  • DownloadMC-10238470-0001.pdf↗
• June 29, 2023•Document ID: 10238469

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  02-190-22R

  Date Added:

  July 3, 2023

  Manufacturer:

  SUBARU

  Summary

  This Service Information Bulletin announces the proper diagnostic procedures regarding oil leakage from the oil level switch area.

  Associated Products (6)

  2022 Subaru Ascent2022 Subaru Legacy2022 Subaru Outback2021 Subaru Ascent2021 Subaru Legacy2021 Subaru Outback
  Associated Documents

  • DownloadMC-10238469-0001.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 (18)

  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 Outback
  Associated Documents

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

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

  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 (24)

  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+ 4 more
  Associated Documents

  • DownloadMC-10238440-0001.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 (13)

  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 WRX
  Associated Documents

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

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

  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 (24)

  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+ 4 more
  Associated Documents

  • DownloadMC-10238438-0001.pdf↗