2020 Subaru Impreza Technical Service Bulletins

407 technical service bulletins (TSBs) are on record for the 2020 Subaru Impreza. 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.

• 10177816Jul 10, 2020Body and structure, Suspension. This Service Information Bulletin outlines design changes made to the rear frame section weld nuts and the mounting bolts used to secure the rear stabilizer bar brackets to them.
• 10175989May 6, 2020Engine cooling, Electrical system. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM) for hard starting in sub-freezing temperatures, DTC P0400, and surging in high altitudes.
• 10175984May 6, 2020Equipment. Vehicle repair program for customers affected by the COVID-19 quarantine.
• 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.
• 10174536Apr 30, 2020Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 10174540Apr 24, 2020Electrical system, Engine cooling. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM).
• 10174535Apr 17, 2020Electrical system. Subaru's QMR of the month winner.
• 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.
• 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.
• 10173178Mar 24, 2020Body and structure, Equipment. This bulletin announces a design change made to the hood stay support. This change will prevent vibration sounds resulting from contact with adjacent under-hood components.
• 10173135Mar 20, 2020Latches, locks and linkages, Electrical system, Body and structure. 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.
• 10173128Mar 19, 2020Electrical system, Equipment. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 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.
• 10173114Mar 6, 2020Electrical system. This Service Information Bulletin is in response to several battery sensor replacements resulting from improper removal and/or installation practices.
• 10173109Mar 4, 2020Body and structure, Equipment. This bulletin announces availability of new outer door handles to address isolated concerns of the chrome finish peeling.
• 10171925Feb 27, 2020Electrical system, Engine cooling. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM).
• 10171950Feb 21, 2020Electrical system. This Service Information bulletin describes a change made to the labels applied to the push to start switches used on the models listed.
• 10171944Feb 21, 2020Equipment, Electrical system. 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.
• 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.
• 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.
• 10171096Jan 28, 2020Electrical system, Equipment. 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, 2020Equipment, Electrical system. The first TomTom map update for Gen 3.1 Harman navigation equipped vehicles was made available.
• 10171083Jan 28, 2020Equipment, Forward collision avoidance, Electrical system. This Service Information Bulletin describes how to proceed when doing EyeSight (Version 3) system diagnosis.
• 10171089Jan 17, 2020Equipment, Electrical system, Air bags. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
• 10169851Dec 30, 2019Equipment. Reprograming file availability for optimization of Harman Gen 3.1 Audio and Navigation Head Units.
• 10169825Dec 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.
• 10168637Nov 18, 2019Electrical system, Equipment. "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, 2019Equipment, Electrical system. 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…
• 10168565Nov 18, 2019Equipment, Electrical system. 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, 2019Equipment, Electrical system. 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, 2019Equipment, Electrical system. 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.
• 10168574Nov 15, 2019Equipment, Electrical system. This Service Information bulletin provides a procedure to use for addressing a customer concern of a delayed or slow response when using the soft keys on the touch screen of the audio / navigation head unit.
• 10168573Nov 15, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to use when diagnosing concerns of the Apple CarPlay and / or Android Auto feature not connecting or launching properly when a compatible device is connected to the head unit.
• 10168569Nov 15, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns involving Bluetooth (BT) 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 on…
• 10168566Nov 15, 2019Equipment, Electrical system. This Service Information Bulletin announces availability of a map update which includes new software to address a route searching error. A “Route Calculation Unsuccessful” message may be displayed when the selected route crosses state borders (e.g. Route 53 which crosses between Alabama and Tennessee).
• 10168563Nov 15, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns regarding USB 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 on the customer…
• 10168562Nov 15, 2019Equipment, Electrical system. This Service Information bulletin provides a procedure for customizing the maintenance period settings of the MFD. When accessing the Maintenance period information on the SSM4, the maintenance interval default values for mileage and number of months are different from those displayed on the MFD. This procedure describes how to synchronize the MFD and SSM4 values to insure proper customer notification.
• 10168623Nov 11, 2019Electrical system, Equipment. This Service Information Bulletin provides insight in response to both customer and retailer feedback resulting from the use of OBD-II port connected devices. These devices are often employed by insurance companies to monitor driver activity for premium calculations (premium discounts). Commonly referred to as discount tools, driver monitors or dongles, the use of these devices can interfere with normal STARLINK…
• 10168600Nov 8, 2019Equipment, Electrical 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 above. The procedure will involve either downloading the software update files from Subarunet (or using those sent directly from Nuspire) and transferring them onto a flash drive for head…
• 10166918Oct 21, 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.
• 10166913Oct 18, 2019Electrical system. This Service Information Bulletin provides the answer to potential inquiries regarding the STARLINK app being unable to play music files stored on a customer’s Android® phone / device through the head units (H/U) used in the applicable models listed above. This information is applicable ONLY to Android devices operating with Operating System (OS) version 10. IOS (AppleTM) devices are not affected.
• 10165548Sep 26, 2019Electrical system. This Service Information 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.
• 10182589Aug 12, 2016Equipment, Engine. This Service Information bulletin provides new inspection and repair procedures for AVCS (Active Valve Control System) -related DTCs on the FA and FB engine equipped models listed above. The applicable Service Manuals will be revised with this new information in the near future.
• 10232535Jul 17, 2014Electrical system. Replacement Key and Immobilizer Info
• 10232507Jun 16, 2014Equipment. Diagnosis and Repair for AVCS-Related DTCs
• 10234841May 20, 2014Equipment, Air bags, Other or unknown. Event Data Recorder (EDR) Function of Airbag Module
• 10233428Apr 22, 2014Brakes, Exterior lighting. This bulletin provides a revised adjustment procedure to be used when diagnosing Brake Light Switch (BLS) -related DTCs C1531 and/or C0054. If the BLS is out of adjustment, the ABS and/or VDC warning lamp may illuminate.
• 10232894Mar 7, 2014Engine cooling. Effective with all 2015 model year cars and forward, the oil change interval is changing to 6,000 miles or 6 months, whichever comes first.

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