2023 Subaru Ascent technical service bulletins
308 technical service bulletins and manufacturer communications cover the 2023 Subaru Ascent.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This bulletin announces a change to the troubleshooting tree when diagnosing DTC P2404 EVAP SYSTEM LEAK...
- This bulletin the announces diagnostic procedures and availability of new Engine Control Module (ECM)...
- This is an update announcement regarding the TechShare & NorthStar Integration
- This Service Information Bulletin announces Service Manual updates for the diagnosis of hands-free calling...
- This announcement provides information on the connected services platform for Subaru EVs.
- This bulletin provides a step-by-step diagnostic procedure for resolving Remote Engine Start (RES)...
- This Service Information Bulletin has been developed to outline the steps for gathering basic but...
- This announcement provides information on DCM replacememts due to a parasitic draw.
- This announcement provides information on an outage affecting the Subaru Select Monitor 5 application.
- This Bulletin procedure announces a revised diagnostic procedure for DTC B28A6 INTERNAL STEREO CAMERA...
- This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced...
- This Service Information Bulletin announces the availability of ThreeBond 1216J (SOA868V9640) designed for...
- This Service Information Bulletin announces the release of a new diagnostic assistance application for...
- This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
- This announcement provides information on the TechShare & NorthStar Intergration
- This bulletin contains illustrations of exchange components and their manufacturer as well as a...
- This Bulletin provides a repair procedure for increased dark current and unintended battery discharge that...
- This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced...
- This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance...
- This bulletin provides paint code information for 2027 model year vehicles.
- This announcement provides an update to all 2027 model year Subaru warranty coverages for wear items and...
- This bulletin has been developed to outline the steps for gathering basic but essential information during...
- This announcement provides an update to the WRH-26 certification label recall.
- This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be...
- This bulletin provides a procedure to address customer concerns of surface rust accumulating in the top...
- Subaru of America, Inc. (Subaru) has initiated a non-compliance recall for certain 2026 model year...
- This Announcement provides diagnostic assistance for CVT issues.
- This bulletin announces a reprogramming file availability and provides a software update installation...
- This Bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when...
- This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw...
- This bulletin announces availability of new reprogramming files developed to address SYMPTOM 1: A jerk or...
- This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the...
- This Bulletin has been developed to outline the steps for gathering basic but essential information during...
- This bulletin announces the design change made to the A/C control module and blower motor unit assembly.
- Techtips newsletter locator index.
- This bulletin contains illustrations of exchange components and their manufacturer as well as a...
- WRH-26
- This announcement provides information on WRH-26 affected CPO and Used Vehicle Inventory.
- This announcement provides WRH-26 recall information for customers.
- This announcement provides WRH-26 recall information for owner contact and a vehicle disclosure form.
- Subaru of America, Inc. (Subaru) has initiated a non-compliance recall for certain 2026 model...
- This announcement provides an update for retailer inventory affected by the WRH-26 non-compliance recall.
- This announcement is to inform retailers of the non-compliance recall/stop sale parts update and repair...
- This announcement provides information on a temporary process for addressing affected SSLP vehicles under...
- This bulletin provides instruction for use (FOTA) of a new reprogramming procedure to optimize the Denso...
- This bulletin provides updated parts information and a service procedure to follow for removing...
- This bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after...
- This announcement is requesting retailer staff to retain the EyeSight protective hood covers from...
- This Service Information Bulletin was developed to provide removal and installation tips to be followed...
- This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on...
- This bulletin announces the design change made to the exhaust manifold flange nut material that has been...
- This bulletin provides a new diagnostic procedure for vehicles equipped with a Denso CP 1, 1.5 and 2.5...
- This Bulletin announces a correction to the diagnostic procedures for certain CVT related DTCs, including...
- This bulletin contains additional information for recommended materials listed in the Service Manuals for...
- This bulletin provides updated parts information and a service procedure to follow for removing...
- This bulletin announces a design change to the TR690 CVT control valve body which features an enhanced...
- This announcement provides information on the remanufactured CVT transmission program.
- This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE...
- This Service Information Bulletin was developed to provide interim guidance for vehicles exhibiting DTC B2A20.
- This Bulletin provides the diagnostic procedures to be followed when addressing customer concerns of...
- This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C)...
- In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited...
- This bulletin contains information to help when attempting to complete the STARLINK Telematics...
- This announcement provides information on the use of aftermarket services or tools for programming...
- This Service Information Bulletin was developed to provide interim guidance for 2026 model year vehicles...
- This bulletin announces the availability of new reprogramming files developed to address cases of DTC...
- The following information announces reprogramming file availability and provides a software update...
- This Subaru service and technical support line newsletter provides information on the next phase of TechShare.
- This announcement has been created to address difficulties with software updates on Subaru Select Monitors...
- This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).
- This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM...
- This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces...
- This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for...
- This bulletin contains illustrations of exchange components and their manufacturer as well as a...
- Subaru service article locator.
- This bulletin announces reprogramming file that provides a software update installation procedure to...
- This bulletin announces a new Genuine Subaru Replacement battery for use in applications where the current...
- This bulletin provides information on the load carrying capacity reduced label when a port-installed or...
- Subaru tech tips newsletter article locator.
- This bulletin announces the diagnostic procedures to be followed when encountering cases of the Remote...
- This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on...
- This Service Bulletin is to inform you of a procedure to restore CP1.5’s normal operation by initializing...
- This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw...
- This bulletin announces the availability of new seat ventilation blower units which have been redesigned...
- This Bulletin provides details on a new formal testing, charging, and tracking procedure for all 12-volt...
- This Bulletin outlines a comprehensive update to the dark current/parasitic draw diagnosis & testing...
- This bulletin announces reprogramming file availability and provides a software update installation...
- This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4.5...
- This bulletin announces the availability of new seat ventilation blower units
- This bulletin addresses cases when attempting to complete the STARLINK Telematics subscription process, an...
- This OTA is an software update to provide audio improvements for the models listed.
- This bulletin announces a design change made to the second row inner seat belt buckle assembly to address...
- This Bulletin provides details on a new formal testing, charging, and tracking procedure for all 12-volt...
- This Bulletin announces the release of a new diagnostic assistance application for TR690 CVT-equipped...
- This Bulletin provides helpful procedures and best practices to utilize when customers present with...
- Subaru of America, Inc. will release an OTA to perform a software update to the DCM. This is a preventive OTA.
- This bulletin announces the availability of reprogramming files designed to improve the functionality of...
- This bulletin announces the availability of reprogramming files for the HYDRAULIC UNIT ASSEMBLY(VDC). This...
- This bulletin provides information on paint codes for vehicles in the 2026 line up.
- Subaru Service Technical Support Newsletter special edition.
- This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be...
- This bulletin announces the availability of reprogramming files for the Engine Control Module (ECM) to...
- This Bulletin announces the availability of a new part Extender Belt
- This bulletin announces the availability of new seat ventilation blower units.
- This OTA is released to address Telematic functions that may stop working after a certain amount of time...
- This bulletin announces the availability of reprogramming files for the Engine Control Module (ECM). This...
- This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C)...
- This announcment provides information on the release of the latest software updates to the Subaru...
- This Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
- This announcement is to bring attention to the OTA for In-vehicle service appointment scheduler and...
- This Service Information bulletin announces the new procedure and Warranty Fail Code for FirstTime air...
- This bulletin announces the availability of reprogramming files for the Engine Control Module (ECM). This...
- The purpose of
- This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C)...
- This bulletin announces a design change to the knob of the center air vent grilles.
- This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC...
- This bulletin announces availability of new door window regulator assemblies and door glass run channel...
- This bulletin announces a design change to the hood lock switch portion of the hood lock assembly.
- This bulletin announces design changes made to the rear axle hubs
- This Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA...
- This Bulletin announces availability of a User Guide and an informative video to supplement the recent...
- This bulletin announces availability of new combination meter reprogramming files developed to address...
- This bulletin announces design changes made to the Power Rear Gate Drive (PRG) Unit to address concerns of...
- The purpose of
- This Bulletin has been developed to outline the steps for gathering basic but essential information during...
- This Service Information Bulletin details a new procedure for conducting a CommCheck on vehicles equipped...
- This bulletin announces the design change made to the left and right A-Pillar trim panels which will...
- When attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204...
- This Bulletin announces diagnostic procedures to be followed when working with a Power Rear Gate (PRG).
- This bulletin announces the design change made to the exhaust manifold flange nuts
- This bulletin announces availability of new door window regulator assemblies and door glass run channel...
- This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC...
- This announcement is in regard to special service tool shipment will be shipped directly to the Subar...
- A head unit OTA will be available via cellular network for Mid and High Grade CP1.5 head units.
- This bulletin announces the repair procedures to be followed when DTC P1449 (EVAP System Clog Detected) is...
- This bulletin is for information purposes only.The bulletin adresses design changes of the headlamps and...
- This bulletin announces availability of new reprogramming files developed to address the two symptoms...
- This bulletin announces the initialization service procedures to be followed when diagnosing and/or...
- This annocement is to inform dealers to the Gen 3.1 Head Unit OTA will be available via Wi-Fi. The update...
- This bulletin announces availability of new reprogramming files developed to address symptoms which a jerk...
- This bulletin announces the availability of new reprogramming files developed to address the following...
- This bulletin details an important regulation issued by the federal safety agency which impacts the way...
- Subaru of America, Inc. has announced a warranty extension to the front brakes which will address concerns...
- This bulletin following information announces reprogramming file availability and provides a software...
- This Service Information Bulletin announces the preferred practices to be used when handling vehicles...
- The CP1.5 RCs OTA is available for all mid and high grade CP1.5 head units.
- This bulletin announces availability of new reprogramming files developed to address the two symptoms, a...
- This Service Information bulletin is being released as guidance for proper testing and charging of vehicle...
- This Service Information Bulletin announces the diagnostic procedures to be followed when diagnosing...
- This bulletin announces the design change made to the rear gate glass, it is intended to address cases of...
- This bulletin announces availability of the NEW genuine Subaru engine oil filter.
- This Bulletin provides the printable target chart needed to perform the wide angle mono camera adjustment...
- This bulletin announces availability of new reprogramming files developed to address of a a jerk or judder...
- This bulletin outlines the judgment criteria to be used when inspecting front transverse link bushings to...
- This Service Information Bulletin announces important diagnostic information to utilize when the Data...
- This bulletin contains illustrations of exchange components and their manufacturer as well as a...
- This bulletin is in the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the...
- This announcement provides information on a warranty extension for Ascent front brake judder/squeak on...
- This annoucement provides parts personnel information about remanufactured transmissions that will no...
- This announcement provides information for retailers to install the latest infotainment system software...
- This bulletin announces important diagnostic information to utilize when testing the Data Communication...
- This announcement provides information on Takata Recall Escalated Towing Program.
- This thermo control valve video contains information on the replacement of thermo control valve.
- This Bulletin provides SOA paint codes to help eliminate possible confusion for 2025 MY vehicles.
- This Service Information Bulletin announces the new control module software reprogramming procedures.
- This Bulletin provides guidance for diagnosing a leaking front or rear suspension strut.
- This bulletin announces a new Genuine Subaru Replacement battery for use in applications where the current...
- This information announces reprograming file availability for Gen 4.5 Denso CP1.5 Audio and Navigation systems
- This bulletin provides diagnosis and procedure information to be applied when diagnosing potential fluid...
- This bulletin announces the availability of new reprogramming files developed to address DTC B28C7...
- This bulletin announces the availability of new reprogramming files developed to address cases were a halt...
- This bulletin announces the availability of new reprogramming files developed to address cases of DTC...
- This bulletin announces a new Genuine Subaru Replacement battery for use in applications where the current...
- This bulletin provides information for all Gen 3 Telematics and Cp 1.5 infotainment equipped vehicles,...
- This bulletin addresses an error code 202 and or 204 when attempting to complete the STARLINK telematics...
- This bulletin has been developed for use as a quick reference tool to aid in diagnosing operational...
- This bulletin announces the availability of reprogramming files for the Engine Control Module (ECM). This...
- This bulletin announces the availability of new reprogramming files developed to address the following...
- This bulletin announces changes in design to the front strut assemblies which will address cases of...
- This bulletin provides the diagnostic procedure for Harman Infotainment Systems when DTC B2255 is detected
- This bulletin announces the availability of new reprogramming files for the Data Communications Module...
- This bulletin announces updated reprogramming files available to optimize the new Gen 4.5 Denso CP1.5...
- Subaru of America, Inc. (Subaru) has initiated a safety recall and stop sale for certain 2023 model year...
- This bulletin addresses rumbling and or rattling coming from the undercarriage while traveling over bumps
- This Service Information Bulletin announces additional information regarding the 360 Surround Multiview...
- This bulletin the announces availability of new reprogramming files for the Engine Control Module (ECM)...
- This bulletin announces design changes made to the Exhaust Pipe Front (EPF) to address concerns of...
- This bulletin announces the availability of new reprogramming files for the DCM.
- This bulletin announces the availability new service procedure developed for the diagnosis of the...
- Safety Recall – Propeller Shaft Center Brace Mounting Surfaces.
- Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year Outback,...
- This Service Information Bulletin is to inform you of the diagnosis procedure of the CP1/ CP1.5...
- Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year Outback,...
- This Service Information Bulletin announces additional diagnostic procedures and a detailed flow chart to...
- This bulletin announces design changes made to the Exhaust Pipe Front (EPF) to address concerns of...
- This Service Information Bulletin has been developed to outline the steps for gathering basic but...
- This bulletin announces diagnostic procedures and availability of new Engine Control Module (ECM)...
- This Bulletin provides reference tables and photos to use for determining the infotainment head unit...
- This bulletin announces availability of reprogramming files to optimize the Transmission Control Module...
- Wheels
- This Service Information Bulletin provides updated diagnostic procedures to follow and a brief...
- This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns...
- This Service Information Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start...
- Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2023 model year Ascent vehicles...
- WRJ-23
- To improve our customer’s experience with software updates, bug fixes and performance enhancements, we are...
- This Service Information Bulletin announces the new control module software reprogramming procedures for...
- This bulletin provides a procedure to address customer concerns of surface rust accumulating in the top...
- This bulletin announces availability of reprogramming files to optimize the Transmission Control Module (TCM).
- Update
- This Bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when...
- Reprogramming File Availability for Optimization of Gen 4.5 Denso CP1.5 Infotainment Systems
- This bulletin provides a repair procedure to address a small number of customer concerns of the hood panel...
- This Service Information Bulletin provides helpful procedures and best practices to utilize when customers...
- USB Map Data Update Procedure for Denso Gen 4 Navigation Equipped System.
- This Service Information bulletin has been developed for use as a quick reference tool to aid in...
- This Service Information Bulletin outlines a new required procedure to follow when performing...
- This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic...
- This Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs.
- Replacement Key and Immobilizer Info
- Effective with all 2015 model year cars and forward, the oil change interval is changing to 6,000 miles or...
- Oil Filler Cap Gasket Coming Unseated
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