Vehicle report

2021 SUBARU ASCENT

Service bulletins

190 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

05-62-18R

Service Bulletin/Repair Instructions

This bulletin provides a procedure to address customer concerns of surface rust accumulating in the top center retaining nut area of the front strut mounts. This is an revised version of the original bulletin.

09-98-22R

Service Bulletin/Repair Instructions

This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM) developed to remedy the following DTCs: P0016, P0017, P0018, P0019, P0014, P0024, P0128, P2109. If any of the DTCs listed above are found to be stored in the ECM, follow the procedures outlined in the bulletin. This is an revised version of the original bulletin.

WRH-26R

Service Bulletin/Repair Instructions

Subaru of America, Inc. (Subaru) has initiated a non-compliance recall for certain 2026 model year Crosstrek Hybrid vehicles, 2025-2026 model year Forester & Forester Hybrid vehicles, and 2019- 2026 Ascent vehicles due to incorrect information listed on the certification label. This is an revised version of the original bulletin.

SubaruNet Announcement (C

Other

This Announcement provides diagnostic assistance for CVT issues.

02-196-26R

Service Bulletin/Repair Instructions

This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup. This is an revised version of the original bulletin.

15-308-23R

Service Bulletin/Repair Instructions

This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experiencing battery drain when the ignition is off, leading to no-start conditions or frequent jump-starts.This is an revised version of the original bulletin.

16-132-20R

Service Bulletin/Repair Instructions

This Bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions used in the models listed. This is an revised version of the original bulletin.

16-150-24R

Service Bulletin/Repair Instructions

This bulletin announces availability of new reprogramming files developed to address SYMPTOM 1: A jerk or judder sensation felt from the powertrain during braking with the air conditioning on. SYPMTOM 2: A shudder is felt from the powertrain along with a screeching type of sound. This is an revised version of the original bulletin.

16-154-25R

Service Bulletin/Repair Instructions

This Service Information Bulletin announces the release of a new diagnostic assistance application for TR690 and TR580 CVT-equipped vehicles. This is an revised version of the original bulletin.

15-304-22R

Service Bulletin/Repair Instructions

This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. (This is an revised version of the original bulletin.)

Article Locator

Other

Techtips newsletter locator index.

15-333-25R

Service Bulletin/Repair Instructions

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin

SubaruNet Announcement (P

Other

WRH-26 Certification Label Non-Compliance Recall- Parts and SSLP Process Updates.

SubaruNet Announcement (V

Other

This announcement provides WRH-26 recall information for owner contact and a vehicle disclosure form.

SubaruNet Announcement (v

Other

This announcement provides information on WRH-26 affected CPO and Used Vehicle Inventory.

SubaruNet Announcement (W

Other

This announcement provides an update for retailer inventory affected by the WRH-26 non-compliance recall.

SubaruNet Announcement (

Other

This announcement is to inform retailers of the non-compliance recall/stop sale parts update and repair procedure.

02-193-24R

Service Bulletin/Repair Instructions

This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers). (This is an revised version of the original bulletin.)

09-74-21R

Service Bulletin/Repair Instructions

This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers). (This is an revised version of the original bulletin.)

02-196-26

Service Bulletin/Repair Instructions

This bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup.

SubaruNet Annoucement (E

Other

This announcement is requesting retailer staff to retain the EyeSight protective hood covers from Generation 4 EyeSight cameras.

16-151-24R

Service Bulletin/Repair Instructions

This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR690 model CVT transmissions used in the models listed. (This is an revised version of the original bulletin.)

09-130-25R

Service Bulletin/Repair Instructions

This bulletin announces the design change made to the exhaust manifold flange nut material that has been changed from stainless steel to medium carbon steel. This change also necessitates a revised tightening torque specification. (This is an revised version of the original bulletin.)

18-241-26

Service Bulletin/Repair Instructions

This Bulletin announces a correction to the diagnostic procedures for certain CVT related DTCs, including P0730, P0746, P0747, P0841, P0846, P0867, P1867, P1894, and P2723.

01-167-08R

Service Bulletin/Repair Instructions

This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.

16-157-26

Service Bulletin/Repair Instructions

This bulletin announces a design change to the TR690 CVT control valve body which features an enhanced line pressure sensor O-ring, designed to prevent abnormal sensor readings caused by O-ring leakage.

SubaruNet Announcement (R

Other

This announcement provides information on the remanufactured CVT transmission program.

18-230-26

Service Bulletin/Repair Instructions

This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).

07-240-26R

Service Bulletin/Repair Instructions

This Service Information Bulletin was developed to provide interim guidance for vehicles exhibiting DTC B2A20.

05-97-26

Service Bulletin/Repair Instructions

This Bulletin provides the diagnostic procedures to be followed when addressing customer concerns of steering wheel/vehicle body vibration when driving at highway speeds when tire/wheel balance is suspected.

10-105-25R

Service Bulletin/Repair Instructions

This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.

06-92-24R

Service Bulletin/Repair Instructions

In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first) to address cases of front brake pulsation or squealing.

15-219-18R

Service Bulletin/Repair Instructions

This bulletin contains information to help when attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully

SubaruNet Announcement (A

Other

This announcement provides information on the use of aftermarket services or tools for programming immobilizer keys/fobs.

Subaru Tech Tips Special

Service Bulletin/Repair Instructions

This Subaru service and technical support line newsletter provides information on the next phase of TechShare.

15-300-22R

Service Bulletin/Repair Instructions

This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).

Subarunet Announcement (E

Other

This announcement has been created to address difficulties with software updates on Subaru Select Monitors with DST-010 interface firmware has been updated.

05-95-25

Service Bulletin/Repair Instructions

This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.

18-226-25R

Service Bulletin/Repair Instructions

This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 (Immobilizer Key Collation Diagnosis).

18-228-25R

Service Bulletin/Repair Instructions

This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1) are detected by the Engine Control Module (ECM).

15-333-25

Service Bulletin/Repair Instructions

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

18-228-25

Service Bulletin/Repair Instructions

This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1) are detected by the Engine Control Module (ECM).

Subaru Tech Tips (Article

Other

Subaru service article locator.

15-130-08R

Service Bulletin/Repair Instructions

This bulletin provides information on the load carrying capacity reduced label when a port-installed or retailer-installed accessory exeeds 1.5 percent of the GVWR or 100 pounds, which ever is lower.

15-319-24R

Service Bulletin/Repair Instructions

This bulletin announces the diagnostic procedures to be followed when encountering cases of the Remote Engine Start (RES) system being the only non-functioning feature with telematics.

07-233-25R

Service Bulletin/Repair Instructions

This Bulletin provides details on a new formal testing, charging, and tracking procedure for all 12-volt batteries in new vehicle inventory.

07-236-25

Service Bulletin/Repair Instructions

This Bulletin outlines a comprehensive update to the dark current/parasitic draw diagnosis & testing procedures.

12-252-23R

Service Bulletin/Repair Instructions

This bulletin announces the availability of new seat ventilation blower units which have been redesigned to address some cases of a vibration-type sound emitting from the blower unit during seat ventilation operation.

07-235-25

Service Bulletin/Repair Instructions

In the interest of customer satisfaction Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage in the models listed. The extension will address instances of “phantom braking” or the EyeSight/RAB systems causing unnecessary stoppage/slowing of the vehicle.

17-20-24R

Service Bulletin/Repair Instructions

This bulletin announces a design change made to the second row inner seat belt buckle assembly to address cases of the seat belt indicator warnings not turning off after the buckle is fully latched.

07-233-25

Service Bulletin/Repair Instructions

This Bulletin provides details on a new formal testing, charging, and tracking procedure for all 12-volt batteries in new vehicle inventory wjhich must be tested and reported every 30 days.

16-154-25

Service Bulletin/Repair Instructions

This Bulletin announces the release of a new diagnostic assistance application for TR690 CVT-equipped vehicles.

15-266-20R

Service Bulletin/Repair Instructions

This Bulletin provides helpful procedures and best practices to utilize when customers present with concerns relating to the operation of their Gen 2/Gen 3 Telematics system equipped Subaru.

15-322-25R

Service Bulletin/Repair Instructions

In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system.

15-320-24R

Service Bulletin/Repair Instructions

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

SubaruNet Announcement

Other

Subaru of America, Inc. will release an OTA to perform a software update to the DCM. This is a preventive OTA.

13-108-25

Service Bulletin/Repair Instructions

This bulletin provides information on paint codes for vehicles in the 2026 line up.

Subaru Service Technical

Other

Subaru Service Technical Support Newsletter special edition.

12-258-25R

Service Bulletin/Repair Instructions

This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be used when working with sunroof seals and sunroof frame assemblies on Ascent models.

17-21-25

Service Bulletin/Repair Instructions

This Bulletin announces the availability of a new part Extender Belt. This is for customers who find it necessary to increase the length of their seat belt.

15-236-18R

Service Bulletin/Repair Instructions

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.

15-256-19R

Service Bulletin/Repair Instructions

This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U) utilized in the models as listed above. Firmware-over-the-air (FOTA) is a process by which remote devices can receive updates to their operating software.

SubaruNet Annoucement

Other

This announcment provides information on the release of the latest software updates to the Subaru Midtronics DSS-5000 Battery Diagnostic tool.

15-251-19R

Service Bulletin/Repair Instructions

This Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.

SubaruNet Announcement (S

Other

This announcement is to bring attention to the OTA for In-vehicle service appointment scheduler and In-vehicle message center.

01-168-09R

Service Bulletin/Repair Instructions

The purpose of this bulletin is to provide replacement key and immobilizer information along with an overview of the Subaru Lock Information web-site.

10-104-25

Service Bulletin/Repair Instructions

This bulletin announces a design change to the knob of the center air vent grilles.

12-240-22R

Service Bulletin/Repair Instructions

This bulletin announces the repair procedures for the left and right-side horns to address DTC B1610 (Front Sub Sensor RH Failure) detected when the horns are operated shortly after engine start up.

07-189-21R

Service Bulletin/Repair Instructions

This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and / or the door glass either not closing or closing very slowly.

12-267-25

Service Bulletin/Repair Instructions

This bulletin announces a design change to the hood lock switch portion of the hood lock assembly.

02-192-24R

Service Bulletin/Repair Instructions

This Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA and FB type engines.

03-96-25

Service Bulletin/Repair Instructions

This bulletin announces design changes made to the rear axle hubs. These changes have been implemented to reduce cases water intrusion further leading to harmonic, humming, and grinding type sounds heard from the axle hub while driving.

14-31-25

Service Bulletin/Repair Instructions

This Bulletin announces availability of a User Guide and an informative video to supplement the recent releases to retailers of the SOA321152 and SOA321153 Terminal Test Kits.

12-265-25

Service Bulletin/Repair Instructions

This bulletin announces design changes made to the Power Rear Gate Drive (PRG) Unit to address concerns of the power rear gate being inoperative.

09-51-08R

Service Bulletin/Repair Instructions

The purpose of this bulletin is to advise of SOA’s revised Catalytic Converter Recycling Program shipping procedure.

12-257-25R

Service Bulletin/Repair Instructions

In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the Front Windshield used in the above listed models and model years from three (3) years / 36,000 miles to eight (8) years / 100,000 miles (whichever comes first). If a customer experiences windshield damage, inspect the damage as per the guidelines supplied in this bulletin to confirm if the damage is covered under the Warranty Extension.

12-258-25

Service Bulletin/Repair Instructions

This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be used when working with sunroof seals and sunroof frame assemblies on Ascent models.

12-260-25

Service Bulletin/Repair Instructions

This bulletin announces the design change made to the left and right A-Pillar trim panels which will address cases of loose fitment.

12-262-25

Service Bulletin/Repair Instructions

This Bulletin announces diagnostic procedures to be followed when working with a Power Rear Gate (PRG).

Subarunet Announcement

Other

This announcement is in regard to special service tool shipment will be shipped directly to the Subar retailers during February.

15-322-25

Service Bulletin/Repair Instructions

This bulletin gives information on extended New Car Limited Warranty for CP1 and Gen 3.1 Head Units.

RC5 Head Unit OTA

Other

A head unit OTA will be available via cellular network for Mid and High Grade CP1.5 head units.

11-205-25

Service Bulletin/Repair Instructions

This bulletin announces the repair procedures to be followed when DTC P1449 (EVAP System Clog Detected) is detected by the Engine Control Module (ECM).

02-193-24

Service Bulletin/Repair Instructions

This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).

07-59-07R

Service Bulletin/Repair Instructions

This bulletin is for information purposes only.The bulletin adresses design changes of the headlamps and rear combination lamps, where moisture and or condensation may develop on the inside of the lamp lenses.

17-20-24

Service Bulletin/Repair Instructions

This bulletin announces a design change made to the second row inner seat belt buckle assembly to address cases of the seat belt indicator warnings not turning off after the buckle is fully latched.

12-251-23R

Service Bulletin/Repair Instructions

This bulletin announces the initialization service procedures to be followed when diagnosing and/or repairing Power Rear Gate (PRG) systems.

16-151-24

Service Bulletin/Repair Instructions

This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR690 model CVT transmissions used in the models listed.

15-298-22R

Service Bulletin/Repair Instructions

This Service Information Bulletin announces the preferred practices to be used when handling vehicles equipped with Gen2 Telematics which are enrolled in the Subaru STARLINK® Security Plus Service featuring Stolen Vehicle Recovery Plus with Immobilizer.

02-192-24

Service Bulletin/Repair Instructions

This Service Information Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA and FB type engines.

07-178-21R

Service Bulletin/Repair Instructions

This Service Information bulletin is being released as guidance for proper testing and charging of vehicle batteries.

15-320-24

Service Bulletin/Repair Instructions

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

12-254-24

Service Bulletin/Repair Instructions

This bulletin announces the design change made to the rear gate glass, it is intended to address cases of rust build up along the edge of the rear gate opening of the rear quarter panel.

02-191-22R

Service Bulletin/Repair Instructions

This bulletin announces availability of the NEW genuine Subaru engine oil filter.

03-94-24

Service Bulletin/Repair Instructions

This bulletin outlines the judgment criteria to be used when inspecting front transverse link bushings to reduce unnecessary bushing replacement.

06-92-24

Service Bulletin/Repair Instructions

This bulletin is in the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first).

Thermo Control Valve Vide

Other

This thermo control valve video contains information on the replacement of thermo control valve.

13-107-24

Service Bulletin/Repair Instructions

This Bulletin provides SOA paint codes to help eliminate possible confusion for 2025 MY vehicles.

05-91-24

Service Bulletin/Repair Instructions

This Bulletin provides guidance for diagnosing a leaking front or rear suspension strut.

06-90-24

Service Bulletin/Repair Instructions

This bulletin provides diagnosis and procedure information to be applied when diagnosing potential fluid leaks on front and rear brake calipers. This information has been developed to reduce unnecessary brake caliper replacement.

15-319-24

Service Bulletin/Repair Instructions

This bulletin announces the diagnostic procedures to be followed when encountering cases of the Remote Engine Start (RES) system being the only non-functioning feature with telematics.

09-117-24

Service Bulletin/Repair Instructions

This bulletin announces the availability of new reprogramming files developed to address cases of DTC P0890 (TCM Power Relay Sense Circuit Low) detected by the Engine Control Module (ECM).

7-219-23R

Service Bulletin/Repair Instructions

To satisfy current supply demands, a new Subaru alternative replacement battery is now available.

15-242-19R

Service Bulletin/Repair Instructions

This bulletin has been developed for use as a quick reference tool to aid in diagnosing operational concerns of the Gen 2 Telematics system’s remote access features.

05-90-24R

Service Bulletin/Repair Instructions

This bulletin announces changes in design to the front strut assemblies which will address cases of rumbling and/or rattling coming from the undercarriage while going over bumps.

18-225-22R

Service Bulletin/Repair Instructions

This bulletin provides the diagnostic procedure for Harman Infotainment Systems when DTC B2255 is detected. This update should prevent unnecessary replacement of the head unit or USB cable.

05-90-24

Service Bulletin/Repair Instructions

This bulletin addresses rumbling and or rattling coming from the undercarriage while traveling over bumps. Subaru has made a design change to the front strut assemblies to address this issue.

09-106-23R

Service Bulletin/Repair Instructions

This bulletin announces design changes made to the Exhaust Pipe Front (EPF) to address concerns of rattle-type or fluttering sounds coming from the undercarriage during acceleration caused by cracking in the EPF.

18-232-23

Service Bulletin/Repair Instructions

This Service Information Bulletin announces the revised break-in procedure for the A/C compressor.

12-251-23

Service Bulletin/Repair Instructions

This bulletin announces the initialization service procedures to be followed when diagnosing and/or repairing Power Rear Gate (PRG) systems.

16-144-23

Service Bulletin/Repair Instructions

This bulletin announces the availability new service procedure developed for the diagnosis of the following DTCs detected by the Transmission Control Module (TCM):

09-110-23R

Service Bulletin/Repair Instructions

This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM).

09-110-23

Service Bulletin/Repair Instructions

This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM). If DTC P0420 is found to be stored in the ECM, follow the diagnostic procedures outlined below.

07-219-23R

Service Bulletin/Repair Instructions

This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.

16-136-22R

Service Bulletin/Repair Instructions

This service bulletin provides a repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration.

16-140-23

Service Bulletin/Repair Instructions

This bulletin announces availability of new reprograming files for the Transmission Control Module (TCM) to address judder a sensation possibly accompanied by a vibration-type sound when accelerating from slow speeds.

18-231-23

Service Bulletin/Repair Instructions

This Bulletin announces additional information regarding error codes 1403- 1407 encountered when attempting an adjustment/calibration of the EyeSight® system after body repair procedures have been performed.

15-282-21R

Service Bulletin/Repair Instructions

This Service Information Bulletin announces additional diagnostic procedures and a detailed flow chart to be used when diagnosing customer concerns regarding the operation of the STARLINK Remote Engine Start (RES) feature.

12-245-23

Service Bulletin/Repair Instructions

This bulletin announces the repair procedure for a rubbing-type sound that can be heard from the side of the console box when it comes in contact with a passenger’s knee or when the gear selector is moved.

09-107-23

Service Bulletin/Repair Instructions

This bulletin announces diagnostic procedures and availability of new Engine Control Module (ECM) reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sense Circuit Range/Performance) detection.

15-285-21R

Service Bulletin/Repair Instructions

This Bulletin provides reference tables and photos to use for determining the infotainment head unit supplier and generation.

09-106-23

Service Bulletin/Repair Instructions

This bulletin announces design changes made to the Exhaust Pipe Front (EPF) to address concerns of rattle-type or fluttering sounds coming from the undercarriage during acceleration caused by cracking in the EPF.

16-141-23R

Service Bulletin/Repair Instructions

This bulletin announces availability of reprogramming files to optimize the Transmission Control Module (TCM). The new files were designed to address cases of DTC P0711 (Transmission Fluid Temperature Sensor “A” Circuit Range/Performance) being detected by the TCM during low ambient temperatures (32° F(0° C)).

02-190-22R

Service Bulletin/Repair Instructions

This Service Information Bulletin announces the proper diagnostic procedures regarding oil leakage from the oil level switch area.

15-240-19R

Service Bulletin/Repair Instructions

This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns.

16-141-23

Service Bulletin/Repair Instructions

This bulletin announces availability of reprogramming files to optimize the Transmission Control Module (TCM).

15-255-19R

Service Bulletin/Repair Instructions

Map Data Update Procedure for Harman Gen 3.1 Navigation Equipped Head Units (H/U).

17-18-23

Service Bulletin/Repair Instructions

This bulletin announces availability of the one-time use mounting clip and spacer clip for the air bag curtain module.

11-204-23

Service Bulletin/Repair Instructions

This Service Information Bulletin announces a design change made to the Positive Crankcase Ventilation (PCV) hose assembly.

07-217-23

Service Bulletin/Repair Instructions

This Bulletin announces additional cautions being added to the Owner’s Manual and Service Manual regarding the operation of door locks.

12-281-20R

Service Bulletin/Repair Instructions

This bulletin provides a repair procedure to address a small number of customer concerns of the hood panel surface vibrating while driving.

09-98-22

Service Bulletin/Repair Instructions

This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM).

WRL-22R

Service Bulletin/Repair Instructions

Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019-2022 model year Ascent vehicles.

07-219-23

Service Bulletin/Repair Instructions

This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.

SubaruNet Announ

Service Bulletin/Repair Instructions

WRL-22 PTC Heater Ground Bolt left side sill cover removal.

WRL-22

Service Bulletin/Repair Instructions

Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019-2022 model year Ascent vehicles. (PTC Heater)

Subarunet Announ

Service Bulletin/Repair Instructions

This communication announces a new procedure for retailers to follow in the event their WRK-21 videoscope requires service or replacement.

07-199-21R

Service Bulletin/Repair Instructions

This Bulletin provides additional information for the diagnostic procedures concerning measurement of Dark Current (a.k.a. Standby Current).

5-88-21R

Service Bulletin/Repair Instructions

This bulletin announces a design change made to the front stabilizer bushings.

15-302-22

Service Bulletin/Repair Instructions

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

18-208-22

Service Bulletin/Repair Instructions

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.

Subaru Tech Tips

Service Bulletin/Repair Instructions

Special Edition, 2012 current model subaru evaporative diagnostics and smoke testing.

12-240-22

Service Bulletin/Repair Instructions

This bulletin announces the repair procedures for the left and right-side horns to address DTC B1610 (Front Sub Sensor RH Failure) detected when the horns are operated shortly after engine start up.

15-298-22

Service Bulletin/Repair Instructions

This Bulletin announces the preferred practices to be used when handling vehicles equipped with Gen2 Telematics which are enrolled in the Subaru STARLINK® Security Plus Service featuring Stolen Vehicle Recovery Plus with Immobilizer.

16-139-22

Service Bulletin/Repair Instructions

The WRK-21 recall includes TCM reprogramming to prevent CVT chain slip. If, during the recall inspection, a vehicle is confirmed to have already experienced severe enough CVT chain slip, the CVT assembly will be replaced.

05-88-21

Service Bulletin/Repair Instructions

This bulletin announces a design change made to the front stabilizer bushings.

09-88-22

Service Bulletin/Repair Instructions

This bulletin announces availability of new reprograming files for the Engine Control Module (ECM).

18-225-22

Service Bulletin/Repair Instructions

This Service Bulletin is to inform you of the diagnosis procedure of the Harman Infotainment System when DTC B2255 is detected.

18-218-22

Service Bulletin/Repair Instructions

This bulletin announces the Service Manual correction for the diagnostic trouble tree for DTC B281C.

18-220-22

Service Bulletin/Repair Instructions

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.

02-190-22

Service Bulletin/Repair Instructions

This bulletin announces the proper diagnostic procedures regarding oil leakage from the oil level switch area.

15-192-22R

Service Bulletin/Repair Instructions

This bulletin has been developed to outline the steps for gathering basic essential information during diagnosis and repair of the Infotainment concerns. (Applicable to all models with Harman or Denso CP1 Infotainment).

01-175-16

Service Bulletin/Repair Instructions

This bulletin provides helpful tips to better utilize the Subaru Select Monitor 4.

15-272-20R

Service Bulletin/Repair Instructions

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

02-189-22

Service Bulletin/Repair Instructions

This Bulletin announces design changes to the engine oil and CVT fluid drain plugs.

15-287-21

Service Bulletin/Repair Instructions

This bulletin announces the availability of diagnostic information regarding accessory remote engine start systems.

02-188-21

Service Bulletin/Repair Instructions

This bulletin announces an additional service procedure for timing chain and / or cam sprocket replacement on FA and FB type engines.

15-195-16R

Service Bulletin/Repair Instructions

This bulletin provides important information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DCM) along with a new claim submission requirement.

06-78-20R

Service Bulletin/Repair Instructions

This Bulletin announces availability of new front brake pad kit established to address concerns of a squeaking sound heard when coming to a stop and / or a pulsation (judder) heard and felt during braking.

07-198-21

Service Bulletin/Repair Instructions

This bulletin announces availability of new starter motors and ECM reprogramming files created to address some reports of excessive noise while cranking the engine.

05-87-21

Service Bulletin/Repair Instructions

This bulletin announces a design change made to the front stabilizer bar bushing clamps.

12-323-21

Service Bulletin/Repair Instructions

This bulletin announces the service procedure for addressing possible water entry into the interior from the door(s) area.

07-199-21

Service Bulletin/Repair Instructions

This bulletin provides additional information for the diagnostic procedures concerning measurement of Dark Current (a.k.a. Standby Current).

18-212-21

Service Bulletin/Repair Instructions

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.

WRF-21

Service Bulletin/Repair Instructions

Subaru of America, Inc. (Subaru) is initiating a voluntary emissions recall for certain 2021 model year Ascent, Legacy, and Outback vehicles equipped with a 2.4L turbo engine, which may have damaged terminals on the engine wire harness.

07-195-21

Service Bulletin/Repair Instructions

This bulletin outlines changes in the service procedure for replacement of the Power Rear Gate control module.

02-187-21

Service Bulletin/Repair Instructions

This bulletin outlines changes in the service procedure for engine oil pressure inspection.

02-186-21

Service Bulletin/Repair Instructions

This bulletin outlines changes in the service procedure for scavenge pump assembly installation.

18-208-21

Service Bulletin/Repair Instructions

Description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.

12-319-21

Service Bulletin/Repair Instructions

This bulletin announces design changes made to the front and rear door glass run channels.

05-85-21R

Service Bulletin/Repair Instructions

This bulletin announces a design change made to the TPMS valve assemblies.

12-316-21

Service Bulletin/Repair Instructions

This bulletin announces changes made to the rear door weatherstrip to optimize sealing performance.

DSC-A0709-02

Service Bulletin/Repair Instructions

+H31&I31

07-190-21

Service Bulletin/Repair Instructions

This bulletin announces a change made to the MFD software to keep the affected units listed below compliant with Apple® CarPlay® certification.

14-27-21

Service Bulletin/Repair Instructions

This bulletin announces the upcoming issuance to all retailers of an essential tool update kit for the Engine Support Assembly Kit #J-50135-A.

07-184-20R

Service Bulletin/Repair Instructions

This bulletin announces a design change made to the power window main switches.

15-221-18R

Service Bulletin/Repair Instructions

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 Navigation and Display Audio systems.

11-202-21R

Service Bulletin/Repair Instructions

This bulletin announces availability of reprogramming files for the Engine Control Module (ECM).

11-202-21

Service Bulletin/Repair Instructions

This bulletin announces availability of reprogramming files for the ECM. These new files will address DTC P1160 and customer concerns of extended cranking in cold temperatures.

14-22-16R

Service Bulletin/Repair Instructions

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.

15-265-20R

Service Bulletin/Repair Instructions

This bulletin provides an overview and basic instructions for use of the “Destination to Vehicle” feature of the Gen 2 Telematics system.

15-267-20R

Service Bulletin/Repair Instructions

This bulletin provides information related to the telematics system's Automatic Collision Notification (ACN) and Advanced Automatic Collision Notification (AACN) feature operation, diagnostic tips, and best practices.

16-131-20

Service Bulletin/Repair Instructions

This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs.

10-19-20

Service Bulletin/Repair Instructions

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.

07-183-20

Service Bulletin/Repair Instructions

This Service Information Bulletin provides corrected and updated procedures to follow when replacing the combination meter assembly.

05-78-20

Service Bulletin/Repair Instructions

This Service Information Bulletin announces additional diagnostic procedures for TPMS related DTC C2921 on the applicable models listed.

0116809R

Service Bulletin/Repair Instructions

Replacement Key and Immobilizer Info

Announcements-2

Service Bulletin/Repair Instructions

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.

0214013

Service Bulletin/Repair Instructions

Oil Filler Cap Gasket Coming Unseated

WQE41-1

Service Bulletin/Repair Instructions

Puddle Light Recall

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.

2021 Subaru Ascent Service Bulletins: 190 bulletins | CarFathom