Technical Service Bulletins (TSBs) for the 2024 Forester are official communications between Subaru & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    ENGINE AND ENGINE COOLING

    • TSB #SubaruNet Announ

      Date Announced:
      OCT 26, 2023
      NHTSA ID:
      #10244912

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2024 model year Forester vehicles. Read More »

    • TSB #15-282-21R

      Date Announced:
      AUG 31, 2023
      NHTSA ID:
      #10241846

      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. Read More »

    POWER TRAIN

    • TSB #WRP-23

      Date Announced:
      DEC 19, 2023
      NHTSA ID:
      #10248201

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year WRX vehicles, certain 2024 model year Crosstrek and Impreza vehicles, and certain 2023-2024 model year Forester vehicles. Read More »

    • TSB #SubaruNet Announ

      Date Announced:
      DEC 14, 2023
      NHTSA ID:
      #10248194

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year WRX vehicles, certain 2024 model year Crosstrek and Impreza vehicles, and certain 2023-2024 model year Forester vehicles. Read More »

    • TSB #SubaruNet Announ

      Date Announced:
      NOV 16, 2023
      NHTSA ID:
      #10246112

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year WRX vehicles, certain 2024 model year Crosstrek and Impreza vehicles, and certain 2023-2024 model year Forester vehicles. Read More »

    • TSB #SubaruNet Announ

      Date Announced:
      NOV 10, 2023
      NHTSA ID:
      #10246091

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year WRX vehicles, certain 2024 model year Crosstrek and Impreza vehicles, and certain 2023-2024 model year Forester vehicles. Read More »

    ELECTRICAL SYSTEM

    • TSB #12-253-23R

      Date Announced:
      APR 18, 2024
      NHTSA ID:
      #10253973

      This bulletin announces the availability of new reprogramming files developed to address cases were a halt code E5 and or DTC b28C7 is detected by the EyeSight Stereo Camera assembly. Read More »

    • TSB #07-218-23R

      Date Announced:
      MAR 28, 2024
      NHTSA ID:
      #10252545

      To satisfy current supply demands, a new Subaru alternative replacement battery is now available. Read More »

    • TSB #15-256-19R

      Date Announced:
      MAR 27, 2024
      NHTSA ID:
      #10252542

      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. Read More »

    • TSB #15-236-18R

      Date Announced:
      MAR 26, 2024
      NHTSA ID:
      #10252541

      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. Read More »

    • TSB #15-303-22R

      Date Announced:
      MAR 25, 2024
      NHTSA ID:
      #10252494

      This bulletin provides information for all Gen 3 Telematics and Cp 1.5 infotainment equipped vehicles, starting with 2023MY, allowing access to valet mode through the head unit. Read More »

    • TSB #15-313-23R

      Date Announced:
      MAR 25, 2024
      NHTSA ID:
      #10252495

      The bulletin contains information for exchange components, their manufacturer, as well as the proper exchange procedure. Read More »

    • TSB #12-253-23R

      Date Announced:
      MAR 22, 2024
      NHTSA ID:
      #10252493

      This bulletin addresses two symptoms related to EyeSight. The first to address 2022 and 2023 model year Foresters with DTC B28C7, for the camera being exposed to high humidity/temperature conditions without operation. Read More »

    • TSB #15-219-18R

      Date Announced:
      MAR 19, 2024
      NHTSA ID:
      #10252491

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

    • TSB #15-257-19R

      Date Announced:
      MAR 19, 2024
      NHTSA ID:
      #10252531

      "This Bulletin provides insight in response to both customer and retailer feedback resulting from the use of OBD-II port connected devices. Read More »

    • TSB #18-225-22R

      Date Announced:
      MAR 05, 2024
      NHTSA ID:
      #10252454

      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. Read More »

    • TSB #15-251-19R

      Date Announced:
      JAN 11, 2024
      NHTSA ID:
      #10249606

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

    • TSB #15-256-19R

      Date Announced:
      JAN 09, 2024
      NHTSA ID:
      #10249605

      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. Read More »

    • TSB #15-246-19R

      Date Announced:
      JAN 02, 2024
      NHTSA ID:
      #10249591

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

    • TSB #12-253-23

      Date Announced:
      DEC 29, 2023
      NHTSA ID:
      #10248207

      This bulletin announces the availability of new reprogramming files developed to address two symptoms: Cooling fans inoperable with EyeSight camera exposed to high humidity/temperature conditions; Temporary halt mode detected by the ... Read More »

    • TSB #07-218-23R

      Date Announced:
      DEC 21, 2023
      NHTSA ID:
      #10248205

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

    • TSB #15-236-18R

      Date Announced:
      DEC 08, 2023
      NHTSA ID:
      #10248193

      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. Read More »

    • TSB #15-266-20R

      Date Announced:
      OCT 26, 2023
      NHTSA ID:
      #10244903

      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. Read More »

    • TSB #18-225-22R

      Date Announced:
      OCT 12, 2023
      NHTSA ID:
      #10244907

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

    • TSB #15-282-21R

      Date Announced:
      AUG 31, 2023
      NHTSA ID:
      #10241846

      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. Read More »

    • TSB #15-313-23

      Date Announced:
      JUL 27, 2023
      NHTSA ID:
      #10240122

      This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. Read More »

    • TSB #15-285-21R

      Date Announced:
      JUL 13, 2023
      NHTSA ID:
      #10240113

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

    • TSB #15-246-19R

      Date Announced:
      JUN 30, 2023
      NHTSA ID:
      #10238472

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

    • TSB #15-255-19R

      Date Announced:
      MAY 15, 2023
      NHTSA ID:
      #10237276

      Map Data Update Procedure for Harman Gen 3.1 Navigation Equipped Head Units (H/U). Read More »

    ELECTRICAL SYSTEM:12V/24V/48V BATTERY

    • TSB #07-218-23R

      Date Announced:
      DEC 21, 2023
      NHTSA ID:
      #10248205

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

    ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:SENSOR

    • TSB #15-246-19R

      Date Announced:
      JAN 02, 2024
      NHTSA ID:
      #10249591

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

    STRUCTURE

    • TSB #12-248-23R

      Date Announced:
      OCT 25, 2023
      NHTSA ID:
      #10244910

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

    • TSB #13-106-23

      Date Announced:
      AUG 09, 2023
      NHTSA ID:
      #10241806

      This bulletin announces SOA paint codes to help eliminate possible confusion. Read More »

    FORWARD COLLISION AVOIDANCE

    • TSB #12-253-23R

      Date Announced:
      APR 18, 2024
      NHTSA ID:
      #10253973

      This bulletin announces the availability of new reprogramming files developed to address cases were a halt code E5 and or DTC b28C7 is detected by the EyeSight Stereo Camera assembly. Read More »

    • TSB #12-253-23R

      Date Announced:
      MAR 22, 2024
      NHTSA ID:
      #10252493

      This bulletin addresses two symptoms related to EyeSight. The first to address 2022 and 2023 model year Foresters with DTC B28C7, for the camera being exposed to high humidity/temperature conditions without operation. Read More »

    • TSB #12-253-23

      Date Announced:
      DEC 29, 2023
      NHTSA ID:
      #10248207

      This bulletin announces the availability of new reprogramming files developed to address two symptoms: Cooling fans inoperable with EyeSight camera exposed to high humidity/temperature conditions; Temporary halt mode detected by the ... Read More »

    LANE DEPARTURE

    • TSB #12-253-23R

      Date Announced:
      APR 18, 2024
      NHTSA ID:
      #10253973

      This bulletin announces the availability of new reprogramming files developed to address cases were a halt code E5 and or DTC b28C7 is detected by the EyeSight Stereo Camera assembly. Read More »

    COMMUNICATION:MANUFACTURER TELEMATICS

    • TSB #15-266-20R

      Date Announced:
      OCT 26, 2023
      NHTSA ID:
      #10244903

      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. Read More »

    EQUIPMENT

    • TSB #12-253-23R

      Date Announced:
      APR 18, 2024
      NHTSA ID:
      #10253973

      This bulletin announces the availability of new reprogramming files developed to address cases were a halt code E5 and or DTC b28C7 is detected by the EyeSight Stereo Camera assembly. Read More »

    • TSB #07-218-23R

      Date Announced:
      MAR 28, 2024
      NHTSA ID:
      #10252545

      To satisfy current supply demands, a new Subaru alternative replacement battery is now available. Read More »

    • TSB #15-256-19R

      Date Announced:
      MAR 27, 2024
      NHTSA ID:
      #10252542

      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. Read More »

    • TSB #15-236-18R

      Date Announced:
      MAR 26, 2024
      NHTSA ID:
      #10252541

      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. Read More »

    • TSB #15-303-22R

      Date Announced:
      MAR 25, 2024
      NHTSA ID:
      #10252494

      This bulletin provides information for all Gen 3 Telematics and Cp 1.5 infotainment equipped vehicles, starting with 2023MY, allowing access to valet mode through the head unit. Read More »

    • TSB #15-313-23R

      Date Announced:
      MAR 25, 2024
      NHTSA ID:
      #10252495

      The bulletin contains information for exchange components, their manufacturer, as well as the proper exchange procedure. Read More »

    • TSB #12-253-23R

      Date Announced:
      MAR 22, 2024
      NHTSA ID:
      #10252493

      This bulletin addresses two symptoms related to EyeSight. The first to address 2022 and 2023 model year Foresters with DTC B28C7, for the camera being exposed to high humidity/temperature conditions without operation. Read More »

    • TSB #15-219-18R

      Date Announced:
      MAR 19, 2024
      NHTSA ID:
      #10252491

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

    • TSB #15-242-19R

      Date Announced:
      MAR 19, 2024
      NHTSA ID:
      #10252492

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

    • TSB #15-257-19R

      Date Announced:
      MAR 19, 2024
      NHTSA ID:
      #10252531

      "This Bulletin provides insight in response to both customer and retailer feedback resulting from the use of OBD-II port connected devices. Read More »

    • TSB #18-225-22R

      Date Announced:
      MAR 05, 2024
      NHTSA ID:
      #10252454

      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. Read More »

    • TSB #15-251-19R

      Date Announced:
      JAN 11, 2024
      NHTSA ID:
      #10249606

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

    • TSB #15-256-19R

      Date Announced:
      JAN 09, 2024
      NHTSA ID:
      #10249605

      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. Read More »

    • TSB #15-246-19R

      Date Announced:
      JAN 02, 2024
      NHTSA ID:
      #10249591

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

    • TSB #12-253-23

      Date Announced:
      DEC 29, 2023
      NHTSA ID:
      #10248207

      This bulletin announces the availability of new reprogramming files developed to address two symptoms: Cooling fans inoperable with EyeSight camera exposed to high humidity/temperature conditions; Temporary halt mode detected by the ... Read More »

    • TSB #07-218-23R

      Date Announced:
      DEC 21, 2023
      NHTSA ID:
      #10248205

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

    • TSB #WRP-23

      Date Announced:
      DEC 19, 2023
      NHTSA ID:
      #10248201

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year WRX vehicles, certain 2024 model year Crosstrek and Impreza vehicles, and certain 2023-2024 model year Forester vehicles. Read More »

    • TSB #SubaruNet Announ

      Date Announced:
      DEC 14, 2023
      NHTSA ID:
      #10248194

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year WRX vehicles, certain 2024 model year Crosstrek and Impreza vehicles, and certain 2023-2024 model year Forester vehicles. Read More »

    • TSB #15-236-18R

      Date Announced:
      DEC 08, 2023
      NHTSA ID:
      #10248193

      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. Read More »

    • TSB #SubaruNet Announ

      Date Announced:
      NOV 10, 2023
      NHTSA ID:
      #10246091

      Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year WRX vehicles, certain 2024 model year Crosstrek and Impreza vehicles, and certain 2023-2024 model year Forester vehicles. Read More »

    • TSB #15-266-20R

      Date Announced:
      OCT 26, 2023
      NHTSA ID:
      #10244903

      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. Read More »

    • TSB #18-225-22R

      Date Announced:
      OCT 12, 2023
      NHTSA ID:
      #10244907

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

    • TSB #15-282-21R

      Date Announced:
      AUG 31, 2023
      NHTSA ID:
      #10241846

      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. Read More »

    • TSB #13-106-23

      Date Announced:
      AUG 09, 2023
      NHTSA ID:
      #10241806

      This bulletin announces SOA paint codes to help eliminate possible confusion. Read More »

    • TSB #15-313-23

      Date Announced:
      JUL 27, 2023
      NHTSA ID:
      #10240122

      This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. Read More »

    • TSB #15-285-21R

      Date Announced:
      JUL 13, 2023
      NHTSA ID:
      #10240113

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

    • TSB #12-249-23R

      Date Announced:
      JUL 11, 2023
      NHTSA ID:
      #10240110

      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. Read More »

    • TSB #15-246-19R

      Date Announced:
      JUN 30, 2023
      NHTSA ID:
      #10238472

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

    • TSB #15-255-19R

      Date Announced:
      MAY 15, 2023
      NHTSA ID:
      #10237276

      Map Data Update Procedure for Harman Gen 3.1 Navigation Equipped Head Units (H/U). Read More »

    EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • TSB #15-256-19R

      Date Announced:
      JAN 09, 2024
      NHTSA ID:
      #10249605

      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. Read More »

    EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • TSB #15-256-19R

      Date Announced:
      JAN 09, 2024
      NHTSA ID:
      #10249605

      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. Read More »

    • TSB #15-313-23

      Date Announced:
      JUL 27, 2023
      NHTSA ID:
      #10240122

      This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. Read More »

    • TSB #15-255-19R

      Date Announced:
      MAY 15, 2023
      NHTSA ID:
      #10237276

      Map Data Update Procedure for Harman Gen 3.1 Navigation Equipped Head Units (H/U). Read More »

    EQUIPMENT:ELECTRICAL:INFOTAINMENT

    • TSB #18-225-22R

      Date Announced:
      MAR 05, 2024
      NHTSA ID:
      #10252454

      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. Read More »

    • TSB #18-225-22R

      Date Announced:
      OCT 12, 2023
      NHTSA ID:
      #10244907

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

    • TSB #15-285-21R

      Date Announced:
      JUL 13, 2023
      NHTSA ID:
      #10240113

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

    EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

    • TSB #15-285-21R

      Date Announced:
      JUL 13, 2023
      NHTSA ID:
      #10240113

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

    EQUIPMENT:ELECTRICAL:AUX AUDIO JACK/PLUG

    • TSB #15-313-23

      Date Announced:
      JUL 27, 2023
      NHTSA ID:
      #10240122

      This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. Read More »