2019 Subaru Forester Technical Service Bulletins

577 technical service bulletins (TSBs) are on record for the 2019 Subaru Forester. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10175977May 5, 2020Equipment, Seats, Electrical system. This bulletin announces a design change made to the Slide Rail components of the left and right front power seat frame / track assemblies used on the models listed.
• 10174543Apr 30, 2020Equipment. All Models (Vehicle Cleaning- COVID-19Best Practices)
• 10174537Apr 30, 2020Equipment, Electrical system. This service information bulletin provides important information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DCM). All models with STARLINK Telematics System.
• 10174540Apr 24, 2020Engine cooling, Electrical system. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM).
• 10174510Apr 17, 2020Electrical system, Latches, locks and linkages, Equipment. This bulletin announces availability of reprogramming files to optimize the Body Integrated Unit (BIU) operation of the automatic door lock (auto-lock / unlock) feature.
• 10174533Apr 16, 2020Latches, locks and linkages, Equipment. This bulletin announces design changes made to the rear gate stays to make closing the rear gate easier.
• 10174513Apr 10, 2020Electrical system. This service information bulletin provides insight in response to both customer and retailer feedback resulting from the use of OBD-II port connected devises.
• 10174512Apr 8, 2020Electrical system. This bulletin is designed to address an error code 202 and/or 204 when attempting to complete the STARLINK Telematics subscription process.
• 10173200Mar 31, 2020Equipment. This service information bulletin outlines a procedure to prevent the loss of and the need to reset the customer's Driver Monitoring System (DMS) settings when servicing the vehicle.
• 10173198Mar 31, 2020Fuel system. This bulletin provides a service procedure to address a small number of concerns regarding a rattle/ buzz-type sound coming from the fuel tank area.
• 10173195Mar 31, 2020Electrical system, Equipment. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize effciency while addressing customer concerns.
• 10173186Mar 26, 2020Equipment, Electrical system. This service bulletin provides details of a correction to the diagnostic procedure for DTC B2350- REAR RADAR COMMUNICATION ERROR on the models listed.
• 10173184Mar 25, 2020Body and structure, Equipment. This bulletin provides a procedure for addressing a rattling sound caused by the sunroof deflector contacting the sunroof rail assembly. This sound may be heard while closing an outside door when all the windows are closed.
• 10173135Mar 20, 2020Electrical system, Body and structure, Latches, locks and linkages. This Service Information Bulletin provides insight on how to address a customer concern of the rear hatch, Power Rear Gate (PRG) or trunk release operating (or finding the PRG/trunk open unexpectedly after parking) without a specific input (button press) from the operator.
• 10173127Mar 19, 2020Electrical system, Air bags, Equipment. This bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
• 10173120Mar 16, 2020Electrical system, Body and structure. This bulletin announces a design change made to the PRG control module. This change is in response to a limited number of customer concerns regarding the rear gate not opening when operating the gate switch or dashboard switch on the vehicle or the button on the key fob. In addition to ensuring proper PRG system operation, the new logic also optimizes the PRG communication function.
• 10173117Mar 10, 2020Equipment, Electrical system, Engine cooling. This Bulletin provides information regarding DTC P0606 related specifically to the determination of this code on Forester Turbo and applicable WRX models.
• 10173109Mar 4, 2020Body and structure, Equipment. This bulletin announces availability of new outer door handles to address isolated concerns of the chrome finish peeling.
• 10173027Mar 3, 2020Engine cooling, Equipment, Electrical system. The purpose of this bulletin is to provide a description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.
• 10171925Feb 27, 2020Engine cooling, Electrical system. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM).
• 10171948Feb 24, 2020Equipment. Subaru Service and Technical Support Line Newsletter. (QMR of the Month)
• 10171944Feb 21, 2020Electrical system, Equipment. This Service Information bulletin informs of an upcoming correction to the Service Manual involving Gear Position shown in Freeze-Frame Data acquired during Engine diagnosis.
• 10171942Feb 21, 2020Equipment. This bulletin announces availability of reprogramming files to optimize the Body Integrated Unit (BIU) operation of the automatic door lock (auto-lock / unlock) feature.
• 10171939Feb 21, 2020Equipment. This bulletin details an important regulation issued by the National Highway Traffic Safety Administration (NHTSA) which impacts the way some vehicles with accessories are sold. This regulation applies to any automobile retailer installing accessories on a vehicle prior to its first sale.
• 10171935Feb 21, 2020Equipment. WUW-08 PCV; There has been an interruption in the supply of part numbers 11810AA230 and X1181AA010 from Japan.
• 10171932Feb 19, 2020Electrical system. 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.
• 10171924Feb 12, 2020Equipment, Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 10171916Feb 10, 2020Electrical system. This Service Information Bulletin provides helpful tips and precautions to use whenever removing or installing the battery sensor assembly from the battery post (and / or negative battery cable from the battery sensor assembly).
• 10171867Feb 4, 2020Engine cooling. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019 model year Ascent, Forester, and Crosstrek Hybrid vehicles in which the Positive Crankcase Ventilation (PCV) valve may be defective.
• 10171104Jan 31, 2020Equipment, Engine cooling. This Service Information Bulletin announces part number change information for the Positive Crankcase Ventilation (PCV) valves used on the models listed above.
• 10171096Jan 28, 2020Equipment, Electrical system. This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U).
• 10171095Jan 28, 2020Electrical system, Equipment. The first TomTom map update for Gen 3.1 Harman navigation equipped vehicles was made available.
• 10171083Jan 28, 2020Equipment, Electrical system, Forward collision avoidance. This Service Information Bulletin describes how to proceed when doing EyeSight (Version 3) system diagnosis.
• 10171087Jan 22, 2020Electrical system, Equipment. This bulletin announces availability of a new DMS control module designed to address a small number of inquiries regarding DTCs B112C and/or B112E.
• 10171090Jan 17, 2020Body and structure, Equipment. This bulletin announces availability of new outer door handles to address isolated concerns of the chrome finish peeling.
• 10171089Jan 17, 2020Equipment, Air bags, Electrical system. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
• 10171088Jan 15, 2020Equipment. "This bulletin provides a procedure to address a limited number of customer concerns regarding light seen “leaking” past the combination meter visor. A small gap can develop between the instrument panel (IP) and the combination meter visor as a result of slight dimensional differences in these parts. When the gap occurs, light may be seen leaking through the gap."
• 10171086Jan 15, 2020Engine cooling, Equipment. This Service Information Bulletin addresses inquiries regarding the labels applied to the tumble generator valve (TGV) motors used on certain replacement intake manifold assemblies.
• 10169851Dec 30, 2019Equipment. Reprograming file availability for optimization of Harman Gen 3.1 Audio and Navigation Head Units.
• 10169848Dec 20, 2019Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. The exchange program policy can also be found in Sections 8.4.9 and 11.2.10 of your Claims Policies and Procedures Manual found in Subarunet.
• 10169831Dec 17, 2019Engine cooling. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019 model year Ascent, Forester, and Crosstrek Hybrid vehicles in which the Positive Crankcase Ventilation (PCV) valve may be defective.
• 10169866Dec 9, 2019Transmission and drivetrain. This bulletin announces a design change to the leather transmission selector lever grip. The change will address a small number of concerns regarding stickiness and / or roughness felt on a portion (Panel A shown in the illustration below) of the grip surface. The new part also enhances parts commonality among models.
• 10169830Dec 4, 2019Engine cooling. New stop sale/safety recall: WUW-08 Ascent, Forester, and Crosstrek Hybrid PCV valve Recall. The Positive Crankcase Ventilation (PCV) valve may be defective.
• 10169824Dec 2, 2019Latches, locks and linkages, Electrical system. This bulletin announces availability of reprogramming files to optimize the Body Integrated Unit (BIU) operation of the automatic door lock (auto-lock / unlock) feature. Currently, when the vehicle is locked by the auto-lock feature, if any door other than the driver’s door is unlocked manually before the driver’s door is unlocked, the auto-unlock operation is cancelled. The new logic keeps the auto-unlock…
• 10168637Nov 18, 2019Equipment, Electrical system. "This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16. In most cases involving this DTC, the following scenario(s) occur: • When trying to use the remote engine starter (RES) feature through Telematics (STARLINK / My Subaru app) the request is unsuccessful and the red Telematics indicator lamp illuminates. • The customer takes their vehicle to the…
• 10168571Nov 18, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to use when diagnosing specific and general audio/sound related concerns. Please start by completing the Harman Investigation Guide-Questionnaire as it gathers important details which will assist you with this diagnosis and is required should the condition not be resolved by this troubleshooting. Once the questionnaire is completed, follow the question flow based on the…
• 10168567Nov 18, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing a customer concern of the display screen being either frozen (unresponsive) or black (blank). Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire…
• 10168565Nov 18, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns of the Navigation system’s functionality. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based…
• 10168560Nov 18, 2019Electrical system, Equipment. This bulletin provides helpful information about operating conditions observed in the field for Technicians to use when diagnosing customer concerns which may arise while operating Harman Gen 3.0 and 3.1 Navigation and Display Audio systems. We will continue to add to this bulletin as more information becomes available.
• 10168627Nov 15, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to follow when diagnosing clock-related customer concerns. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on the customer concern.

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