2017 Subaru Legacy Technical Service Bulletins

394 technical service bulletins (TSBs) are on record for the 2017 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.

• 10161824May 21, 2019Equipment. Subaru Service and Technical Support Line Newletter.
• 10161814May 7, 2019Electrical system. This service bulletin announces availability of the cap portion (a.k.a. spark plug boot) as a service part separate from the complete ignition coil assembly. If the cap portion as shown in the illustrations below is damaged during removal or replacement, it is no longer necessary to replace the complete ignition coil assembly.
• 10161813May 6, 2019Equipment. To help reduce confusion and increase technician efficiency, Subaru of America, Inc. (SOA) has developed the following cross reference list to help locate the appropriate Special Service Tool.
• 10161811May 2, 2019Steering. This bulletin provides a service procedure to address isolated customer concerns of a rattling sound identified as coming from the Electronic Power Steering (EPS) gear box (steering rack) assembly. The repair (when applicable) involves installation of a new tension spring for the worm gear to reduce / eliminate the condition.
• 10160202Apr 25, 2019Equipment. This Service Information bulletin announces availability of an enhancement to the Gracenote database included in the vehicles listed above equipped with F10 7? Navigation and 7? Display Audio head units.
• 10160214Apr 23, 2019Electrical system, Engine. This bulletin announces part information for new Active Valve Control System (AVCS) oil control solenoid valves (OCV) which contain a redesigned internal oil seal. The new seal will eliminate potential oil seepage into the wire harness connector portion of the valve. If oil seeps into the connector, over time, the Check Engine lamp may illuminate and set various AVCS-related DTCs.
• 10160510Mar 27, 2019Equipment, Seats. This bulletin provides a procedure to help identify the source of a squeaking, creaking or popping -type sound heard coming from the driver?s seat. A change has been made to the Teflon bushings used in the seat cushion frame assembly.
• 10160502Mar 18, 2019Electrical system, Equipment, Exterior lighting. This bulletin announces a change to the operating software included in the Vehicle Dynamic Control (VDC) Control Module and Hydraulic Unit (VDCCM&H/U) on the models listed above. This change is in response to a very small number of customer inquiries regarding the Hill Holder system?s indicator lamp blinking once along with a single tone (chirp)being heard when starting the engine using the key, push-button or with…
• 10160490Mar 8, 2019Engine cooling, Equipment. 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.
• 10160489Mar 6, 2019Electrical system. In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a service program to reprogram the combination meter software to ensure improved accuracy of the driving range indicator calculation in the multi-information display.
• 10160485Mar 4, 2019Equipment. This bulletin provides a procedure to follow for addressing customer concerns of a shuddering condition or chattering -type sound heard or felt when making sharp turns. If an applicable vehicle presents with the condition as described, it is recommended to perform the transfer clutch break-in procedure as described.
• 10155226Feb 28, 2019Equipment. This bulletin announces a design change made to the HVAC control panels for the models listed above. The change will address customer concerns of the seat heater switches sticking in the ?pressed? position but not returning to ?flush? with the face of the control panel when released as shown in the photos below. A series of small air outlets (vents) has been added to the assembly to keep dust and dirt from…
• 10155225Feb 22, 2019Equipment. This Service Information bulletin announces a design change made to the rubber timing hole access plug to improve its retention and prevent water intrusion into the converter case.
• 10155220Feb 20, 2019Electrical system. This bulletin announces a design change to the CVT select lever (shifter) mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park. The cause is contamination of the Park-Range switch internal components.
• 10155211Feb 7, 2019Brakes. This bulletin announces a design change made to the rear ABS wheel speed sensor on the models listed above. The change involves the addition of an additional shielding cover to protect the harness from damage caused by road debris.
• 10154412Jan 30, 2019Electrical system, Equipment. This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed below involving ?Gen 2? F10 Navigation and Display Audio units with 7? display.
• 10154423Jan 29, 2019Electrical system. This Service Information bulletin announces availability of a new control valve assembly (valve body) designed to prevent false detection of DTC P0841 and / or illumination of the AT Temp light. Testing has revealed in some limited cases, air bubbles (aerated fluid) may enter certain pressure circuits within the control valve assembly causing fluid pressure control and adjustment to be calculated incorrectly…
• 10154418Jan 24, 2019Wheels. This bulletin announces a slight design change made to the sealing areas of the wheel hub assemblies for the models as listed above. The change was made to enhance productivity during the vehicle assembly process.
• 10154207Jan 10, 2019Equipment, Air bags. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
• 10154206Jan 8, 2019Transmission and drivetrain. This bulletin has been developed in response to a small number of customer concerns regarding fluid seepage found coming from the CVT assembly. Investigation has identified a likely source of the seepage to be the sealant used on the CVT?s oil pump chain cover. The repair involves removal, a thorough cleaning and inspection of the sealing surfaces followed by re-sealing the cover.
• 10153627Dec 28, 2018Electrical system. This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed below involving ?Gen 2? F10 Navigation and Display Audio units with 7? display.
• 10153187Nov 14, 2018Engine. This Service Information Bulletin announces design changes to the engine?s knock sensor which will help improve vehicle assembly line efficiency and increase durability. In some cases, the Check Engine light may illuminate and a knock sensor-related DTC set in the ECM memory: P0327, P0328, P0332 and P0333. The knock sensor for DIT engines is now utilized for NA engines to improve durability and resistance to heat.
• 10153184Nov 13, 2018Seats. This bulletin provides a procedure to help identify the source of a squeaking, creaking or popping -type sound heard coming from the driver?s seat. A change has been made to the Teflon bushings used in the seat cushion frame assembly.
• 10153178Nov 6, 2018Electrical system, Transmission and drivetrain. This bulletin announces a design change to the CVT select lever (shifter) mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park. The cause is contamination of the Park-Range switch internal components.
• 10150937Oct 12, 2018Equipment, Electrical system. This bulletin announces reprogramming file availability and the software installation procedure to address a group of operational concerns received from the field and listed below involving the Clarion Display Audio unit with 6.2? display.
• 10150912Oct 12, 2018Electrical system. This bulletin announces reprogramming file availability and the software installation procedure to address a group of operational concerns received from the field and listed below involving the Clarion Display Audio unit with 6.2? display.
• 10150930Oct 2, 2018Equipment. This Service Information bulletin announces availability of an enhancement to the Gracenote database included in the vehicles listed above equipped with F10 7? Navigation and 7? Display Audio head units. When the user plays a pre-recorded CD, Gracenote recognizes the disc then shows the artist and track name information along with the album cover art on the head unit display (when available).
• 10150885Oct 2, 2018Equipment, Electrical system. This Service Information bulletin announces availability of an enhancement to the Gracenote database included in the vehicles listed above equipped with F10 7? Navigation and 7? Display Audio head units. When the user plays a pre-recorded CD, Gracenote recognizes the disc then shows the artist and track name information along with the album cover art on the head unit display (when available).
• 10146475Sep 6, 2018Transmission and drivetrain. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Powertrain Warranty coverage for the Continuously Variable Transmission (CVT) on the above listed models and model years from the original five (5) years or sixty thousand (60,000) miles (whichever comes first) to ten (10) years or one-hundred thousand (100,000) miles (whichever comes first).
• 10144883Aug 21, 2018Equipment. 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. The tables contained within this bulletin are to be used as guides for becoming aware of the latest changes. We advise you to always refer to the STIS web site when looking for the latest Service information
• 10144882Aug 21, 2018Equipment. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. Within the terms of the Basic New Car Warranty and the one year Replacement Parts Warranty, the Exchange Program provides for replacement of a defective unit from the manufacturer.
• 10144881Aug 15, 2018Equipment, Electrical system. This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed below involving ?Gen 2? F10 Navigation and Display Audio units with 7? display. The procedure will involve downloading the applicable software update files then loading them onto two flash drives for audio unit installation.
• 10144880Aug 15, 2018Body and structure. This Service Information bulletin advises of a design change made to the rear body panel. This panel is located between the trunk and the rear glass and incorporates the package shelf. It has been re-designed with convex surfaces added to prevent items going into or out of the trunk from being scratched or caught by the rear edges of the reinforcement panels.
• 10144876Aug 9, 2018Equipment, Body and structure. This Service Information bulletin announces a change made to the trunk hinge mounting bolts. The threaded end of the new flange bolts has been changed to a round type instead of square to prevent getting caught on items as they are loaded into and out of the trunk.
• 10143882Jul 30, 2018Equipment. procedure to address additional operational concerns received from the field and listed below involving ?Gen 2? F10 Navigation and Display Audio units with 7? display. The procedure will involve downloading the applicable software update files then loading them onto two flash drives for audio unit installation. It is important to read through and understand this information completely before proceeding. These…
• 10143727Jul 26, 2018Engine, Engine cooling. This bulletin provides a service procedure for installation of additional foam packing to enhance performance of the Ambient Air Temperature Sensor. The additional foam better insulates the sensor from engine compartment heat which may lead to setting a DTC P0072. This information is applicable to models with or without the Active Grill Shutter (AGS) system.
• 10143879Jul 23, 2018Body and structure. This bulletin provides a procedure for diagnosing and repairing customer concerns of a "popping" or "snapping" -type sound heard when opening the sunroof. The sound may occur when the rear portion of the glass lid weatherstrip contacts or catches the roof frame when the sunroof is opened.
• 10143873Jul 23, 2018Electrical system. This bulletin announces a design change to the EPB adapter cord harness connector. In some cases, the retaining tab of the connector may become damaged as a result of removal or installation for diagnosis and later and cause DTC C1956 or C1957 to set and the brake warning lamp to illuminate. The retaining tab portion of the connector has been changed to improve its durability and prevent recurrence of the DTC.
• 10142829Jun 26, 2018Equipment. This bulletin announces availability of reprogramming files to optimize the ECM. These new files will address an idle drop condition which may occur when the A/C system switches off at low engine RPM during warm-up after a cold start.
• 10142838Jun 21, 2018Electrical system. This bulletin announces a design change to the CVT select lever (shifter) mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park. The cause is contamination of the Park-Range switch internal components.
• 10142835Jun 11, 2018Electrical system. This bulletin announces reprogramming file availability and the software installation procedure to address a group of operational concerns received from the field and listed below involving the Clarion Display Audio unit with 6.2? display. The procedure will involve downloading the applicable software update files from Subarunet then loading them onto a flash drive for audio unit installation.
• 10142834Jun 11, 2018Equipment. ONLY MODELS with AVN Navigation or Display Audio system. This bulletin provides information to help diagnose and address different conditions relating to customer concerns which may arise when operating the new-generation ?Gen 2? and ?Gen 2.1? F10 Navigation and Display Audio systems. We will continue to add more helpful tips to this TSB as they become available.
• 10142827Jun 11, 2018Electrical system. This bulletin provides a measurement and adjustment procedure for the stop lamp switch. An improperly adjusted (or faulty) stop lamp switch can cause any of the DTCs listed to set and result in the related system?s (e. g. VDC and/or EyeSight) warning lamp to illuminate.
• 10133528Mar 23, 2018Electrical system. This bulletin announces a design change to the CVT select lever (shifter) mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park. The cause is contamination of the Park-Range switch internal components
• 10130273Jan 26, 2018Electrical system, Exterior lighting. This bulletin provides a measurement and adjustment procedure for the stop lamp switch. An improperly adjusted (or faulty) stop lamp switch can cause any of the DTCs listed above to set and result in the related system?s (e. g. VDC and/or EyeSight) warning lamp to illuminate.
• 10130285Jan 15, 2018Equipment. Technical support guide for navigation and audio f10 gen2 systems.
• 10130280Jan 5, 2018Equipment. Models with FujitsuTEN (F10) Gen 2.0 / 2.1 Navigation or Display Audio Head Units ONLY. This bulletin provides a repair procedure to address specific, confirmed customer concerns of: ? Audio output interruption every 2-3 seconds when listening to AM or FM radio broadcasts ? No audio output at all when attempting to listen to a HD Radio broadcast.
• 10130287Jan 3, 2018Electrical system, Equipment. The corrected update files are now available for download from Subarunet. TSB 15-20516R has been revised with new file names where applicable and re-posted to STIS.
• 10130278Jan 3, 2018Equipment, Electrical system. This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed below involving ?Gen 2? F10 Navigation and Display Audio units with 7? display. The procedure will involve downloading the applicable software update files then loading them onto two flash drives for audio unit installation.
• 10138770Dec 22, 2017Equipment. Subject: Removal of Certain Fujitsu 10 Audio / Navigation Update Files from Subarunet The following update files have been temporarily removed from Subarunet due to potential quality concerns with the 2nd file used in those updates. Retailers are requested to take the following action: ? If any of the following Fujitsu 10 Audio / Navigation files have been downloaded and saved locally, please discontinue their use…

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