Service bulletins for the 2023 Subaru Legacy
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
323 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 09-115-24R | 2025-05-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM. "This bulletin announces the availability of new oxygen sensors developed to address the following Diagnostic Trouble Codes (DTCs) detected by the Engine Control Module: • P0137: O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 • P0138: O2 Sensor Circuit High Voltage Bank 1 Sensor 2 • P0140: O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2 • P0141: O2 Sensor Heater Circuit Bank 1 Sensor 2" |
|---|---|
| 09-51-08R | 2025-04-01. Service bulletin. ENGINE. The purpose of this bulletin is to advise of SOA’s revised Catalytic Converter Recycling Program shipping procedure. |
| 09-132-25 | 2025-04-01. Service bulletin. ENGINE. This Bulletin announces the Service Manual Correction for the diagnostic procedures to be followed when performing diagnostic repairs for diagnostic trouble codes (DTCs) P26A6 (Engine Coolant Bypass Valve “A” Position Sensor Circuit Low) and P26A7 (Engine Coolant Bypass Valve “A” Position Sensor Circuit High). Refer to the service procedures in this bulletin when performing diagnosis on DTCs P26A6 and P26A7. This correction will be applied the Service Manual in the future. |
| 09-136-25 | 2025-04-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This bulletin announces the availability of reprogramming files for the Engine Control Module (ECM). This logic was developed to address the following Diagnostic Trouble Code (DTC): P062F - Internal Control Module EEPROM Error. |
| 02-193-24R | 2025-03-04. Service bulletin. ENGINE. 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). |
| 09-130-25R | 2025-03-04. Service bulletin. ENGINE. This bulletin announces the design change made to the exhaust manifold flange nuts. The material has been changed from a medium carbon steel to stainless steel. |
| 09-130-25R | 2025-03-04. Service bulletin. ENGINE. This bulletin announces the design change made to the exhaust manifold flange nuts. The material has been changed from a medium carbon steel to stainless steel. |
| 09-125-24R | 2025-03-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This bulletin announces the availability of new reprogramming files for the Engine Control Module (ECM), to address concerns of the starter motor not operating. |
| 15-246-19R | 2025-01-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the models listed. |
| 02-193-24 | 2025-01-03. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. 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). |
| 16-150-24R | 2025-01-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE. "This bulletin announces availability of new reprogramming files developed to address the two symptoms described below: 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. NOTE: Both of these symptoms are not related with a fault code. The new files contain enhanced software optimizing input clutch application along with enhanced hydraulic pressure control during braking/deceleration." |
| 16-150-24R | 2024-11-04. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ENGINE. This bulletin announces availability of new reprogramming files developed to address symptoms which a jerk or judder sensation can be felt from the powertrain during braking with air conditioning on, or a shudder felt from the powertrain along with a screeching type of sound. |
| 01-167-08R | 2024-10-02. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models. |
| 02-192-24 | 2024-10-02. Service bulletin. ENGINE. This Service Information Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA and FB type engines. |
| 16-150-24R | 2024-10-02. Service bulletin. POWER TRAIN; ENGINE; ELECTRICAL SYSTEM. This bulletin announces availability of new reprogramming files developed to address the two symptoms, a jerk or judder sensation felt from the powertrain during braking with the air conditioning on, or a shudder is felt from the powertrain along with a screeching type of sound. |
| 02-191-22R | 2024-10-02. Service bulletin. ENGINE. This bulletin announces availability of the NEW genuine Subaru engine oil filter. |
| 16-150-24 | 2024-10-02. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE. This bulletin announces availability of new reprogramming files developed to address of a a jerk or judder sensation felt from the powertrain during braking with air conditioning on, or a shudder felt from the powertrain along with a screeching type of sound. |
| 09-115-24R | 2024-10-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This bulletin announces the availability of new oxygen sensors developed to address Diagnostic Trouble Codes (DTCs) detected by the Engine Control Module. |
| 09-123-24R | 2024-09-04. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. This bulletin announces the design change made to the high-pressure fuel pump developed to prevent DTC P0087 (Fuel Rail/System Pressure – Too Low Bank 1). |
| 01-168-09R | 2024-09-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. The purpose of this bulletin is to provide replacement key and immobilizer information along with an overview of the Subaru Lock Information web-site. |
| 09-74-21R | 2024-08-05. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. 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). |
| Thermo Control Valve Vide | 2024-08-05. Other. ENGINE. This thermo control valve video contains information on the replacement of thermo control valve. |
| 09-125-24 | 2024-08-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This bulletin announces the availability of new reprogramming files for the Engine Control Module (ECM), to address concerns of the starter motor not operating. |
| 14-28-21R | 2024-08-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This Service Information Bulletin announces the new control module software reprogramming procedures. |
| 15-246-19R | 2024-07-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.