Service bulletins for the 2018 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.
445 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 16-132-20R | 2021-01-05. Service bulletin. POWER TRAIN; EQUIPMENT. This Service Information Bulletin provides updated diagnostic procedures to follow when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions. |
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| 15-211-17R | 2021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the Harman Gen 3 Audio and Navigation head units. |
| 12-203-16R | 2021-01-05. Service bulletin. SEAT BELTS; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This bulletin provides a procedure to address customer concerns of a squeaking sound originating from where the front seat belt buckle assembly attaches to the seat frame. |
| 12-203-16R | 2021-01-05. Service bulletin. SEAT BELTS; SEATS; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This bulletin provides a procedure to address customer concerns of a squeaking sound originating from where the front seat belt buckle assembly attaches to the seat frame. |
| 16-103-16R | 2021-01-05. Service bulletin. POWER TRAIN. This bulletin has been developed in response to a small number of customer concerns regarding fluid seepage found coming from the CVT assembly. |
| 16-131-20 | 2020-12-05. Service bulletin. POWER TRAIN. This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs. |
| 15-254-19R | 2020-12-05. Service bulletin. EQUIPMENT. Map update for Harman Gen 3.0 Navigation Equipped Head Units. |
| 15-211-17R | 2020-12-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the Harman Gen 3 Audio and Navigation head units. |
| 18-203-20 | 2020-12-05. Service bulletin. EQUIPMENT. 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. |
| 03-85-20R | 2020-12-05. Service bulletin. POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This bulletin announces the availability of new propeller shaft assemblies. |
| 216316 | 2020-11-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; 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. |
| 15-240-19R | 2020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency. |
| 10-19-20 | 2020-11-05. Service bulletin. EQUIPMENT. 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. |
| 05-80-20 | 2020-11-05. Service bulletin. SUSPENSION; STEERING; EQUIPMENT. This bulletin announces availability of new Front Stabilizer Link assemblies equipped with a new dust boot material having enhanced durability and grease retention characteristics. |
| 07-181-20 | 2020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ENGINE. This Service Information Bulletin provides an important step currently missing from the Service Manual diagnostics for DTC B1572 “IMM CIRCUIT EXCEPT ANTENNA CIRCUIT”. |
| 06-77-20R | 2020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces the availability of reprogramming files to optimize the control module for the Vehicle Dynamics Control system (VDCCM). DTCs C1531 and/or C1741 may set, the Hill Holder warning lamp and cancellation alarm may activate and/or the VDC warning lamp can illuminate. |
| 05-78-20 | 2020-11-05. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. This Service Information Bulletin announces additional diagnostic procedures for TPMS related DTC C2921 on the applicable models listed. |
| 18-201-20 | 2020-11-05. Service bulletin. EQUIPMENT. 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. |
| Subaru Starlink | 2020-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. Update for STARLINK Multimedia Software and Navigation Maps. |
| 18-200-20 | 2020-10-05. Service bulletin. EQUIPMENT. This bulletin provides a description of current changes to Service Manuals. |
| 15-240-19R | 2020-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimized efficiency. |
| 15-254-19R | 2020-09-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Map Data Update Procedure for Harman Gen 3.0 Navigation Equipped Head Unts (H/U). |
| 15-271-20 | 2020-09-04. Service bulletin. ELECTRICAL SYSTEM. This service information bulletin announces discontinuation of both the "Stitcher" app and the related News Radio feature from the STARLINK app lineup effective 12 midnight on Thursday, September 24, 2020. |
| 15-211-17R | 2020-09-04. Service bulletin. ELECTRICAL SYSTEM. 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. |
| 07-124-17R | 2020-09-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces reprogramming file availability to optimize the Body Integrated Unit (BIU). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.