2020 Subaru Legacy Technical Service Bulletins

595 technical service bulletins (TSBs) are on record for the 2020 Subaru Legacy. 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.

• 10185063Dec 1, 2020Electrical system, Equipment. This bulletin provides helpful tips to use when diagnosing customer concerns which may arise when operating the new-generation Denso CP1 Multimedia Navigation (AVN) & Display Audio (DA) systems.
• 10183709Nov 24, 2020Electrical system. This Service Information Bulletin addresses isolated customer concerns regarding the CP1 Base Model Center Information Display (CID) lower 7-inch display screen flashing, not responding to touch inputs, and / or shutting off intermittently.
• 10183705Nov 20, 2020Electrical system. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the Gen 4 Denso CP1 Audio and Navigation head units.
• 10183704Nov 20, 2020Equipment. 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.
• 10183700Nov 10, 2020Equipment, Electrical system. This Service Information Bulletin provides a testing procedure for the microphone used in Denso CP1 infotainment systems.
• 10183714Nov 9, 2020Transmission and drivetrain. This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs.
• 10182248Oct 29, 2020Electrical system, Equipment, Forward collision avoidance. This bulletin announces availability of reprogramming files to optimize the operation of the VDC Control Module (VDCCM).
• 10182247Oct 29, 2020Equipment. 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.
• 10182242Oct 26, 2020Electrical system, Equipment. This Service Information Bulletin provides corrected and updated procedures to follow when replacing the combination meter assembly.
• 10182234Oct 22, 2020Engine cooling. This Service Information Bulletin announces availability of a new B2 (LH) INTAKE Camshaft.
• 10182222Oct 14, 2020Equipment, Seats. This bulletin announces a design change made to the front seat backrest frame assemblies in response to a limited number of customer reports of a squeaking sound heard when leaning back in the front seats.
• 10182214Oct 13, 2020Tires, Electrical system. This Service Information Bulletin announces additional diagnostic procedures for TPMS related DTC C2921 on the applicable models listed.
• 10182212Oct 9, 2020Electrical system, Transmission and drivetrain. This bulletin announces availability of a new transmission harness for use when diagnosis of DTC P0842 determines the sensor itself is OK but the transmission wiring harness is NG.
• 10182187Oct 2, 2020Equipment. The purpose of this bulletin is to provide a desription of current changes to service manuals available via the Subaru Technical Information System (STIS) web site.
• 10180736Sep 22, 2020Equipment, Electrical system. Update your STARLINK Multimedia Software for vehicles with 11.6-inch display.
• 10180733Sep 18, 2020Equipment. This bulletin provides a description of current changes to Service Manuals.
• 10180686Sep 9, 2020Electrical system, Equipment. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units.
• 10180685Sep 9, 2020Electrical system, Equipment. This service information bulletin addresses isolated customer concerns regarding the pictured CP1 BASE Model Center Information Display (CID) lower 7-inch display screen flashing, not responding to touch inputs, and/or shutting off intermittently.
• 10180729Sep 4, 2020Equipment, Body and structure. This bulletin announces availability of new center vent grille assemblies which contain an enhanced control mechanism to ensure complete closing when the operator chooses to close off airflow.
• 10179420Aug 28, 2020Electrical system. Due to the FOTA update concerns there has been an increased demand for the CCU (Cockpit Control Unit) and the 11.6 " (Mid and High) CID. This increased demand has created a temporary backorder at the exchange unit vendor for both components.
• 10179412Aug 25, 2020Electrical system. This service information bulletin involves DTC U0254 "Lost Communication with Remote Control Module".
• 10179411Aug 21, 2020Equipment, Electrical system. Concern with latest 2020 MY Legacy / Outback Gen 4 CP1 FOTA Software Update.
• 10179410Aug 19, 2020Electrical system, Equipment. This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4 Audio and Navigation system utilized in the models listed.
• 10179384Aug 13, 2020Electrical system. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units utilized in the models listed.
• 10179381Aug 5, 2020Equipment, Electrical system. This bulletin announces availability of DMS reprogramming files to address the following DTCs: B118B, B11E5, B11E6 when they appear in memory all at the same time as a group.
• 10179378Aug 4, 2020Equipment. Special Service Tools Cross Reference List.
• 10177832Jul 27, 2020Electrical system. USB map data update procedure for Denso Gen 4 Navigation equipped system.
• 10177820Jul 17, 2020Electrical system. This Service information bulletin provides Telematics system/generation applicability.
• 10177826Jul 16, 2020Equipment, Electrical system. This Service Information Bulletin provides helpful procedures and best practices to utilize when customers present with concerns relating to the operation of their Gen 2 Telematics system equipped Subaru.
• 10177825Jul 16, 2020Electrical system, Forward collision avoidance. This document discusses some of the conditions that may trigger an Automatic Collision Notification (CAN) (Gen1) or Advanced Automatic Collision Notification (AACN) (Gen2), without a collision, airbag deployment, or accident taking place.
• 10177819Jul 14, 2020Electrical system. This Service Information bulletin provides IMPORTANT information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DMC).
• 10177818Jul 13, 2020Equipment, Electrical system. This bulletin contains inllustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 10176026May 21, 2020Electrical system, Equipment. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Gen Denso CP1 Audio and Navigation head units utilized in the models listed.
• 10176021May 18, 2020Electrical system, Equipment. This bulletin announces availability of DMS reprogramming files to address the following DTCs: B118B, B11E5, B11E6, when they appear in memory all at the same time as a group.
• 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, 2020Engine cooling, Electrical system. 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.
• 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.
• 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.
• 10173128Mar 19, 2020Equipment, Electrical system. 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.
• 10173119Mar 16, 2020Equipment. Subaru Technical Newsletter. (QMR of the month)
• 10173116Mar 10, 2020Equipment, Electrical system. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the Gen 4 Denso CP1 Audio and Navigation head units.
• 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.

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