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Service bulletins for the 2018 Subaru Impreza

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.

528 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
15-267-202020-08-03. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE. This document discusses some of the conditions that may trigger an Automatic Collision Notification (CAN) (Gen1) or Advanced Automatic Collision Notification (AACN) (Gen2), without a collision, airbag deployment, or accident taking place.
15-219-18R2020-08-03. Service bulletin. ELECTRICAL SYSTEM. This Service information bulletin provides Telematics system/generation applicability.
15-195-16R2020-08-03. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin provides IMPORTANT information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DMC).
15-245-19R2020-08-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.0 Audio and Navigation head units (H/U) utilized in the models listed.
12-296-20R2020-08-03. Service bulletin. SUSPENSION; STRUCTURE:FRAME AND MEMBERS. This Service Information Bulletin outlines design changes made to the rear frame section weld nuts and the mounting bolts used to secure the rear stabilizer bar brackets to them.
15-240-19R2020-08-03. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns.
06-75-202020-06-02. Service bulletin. SERVICE BRAKES, HYDRAULIC. This Service Information Bulletin is intended to clarify the proper ordering procedure to use in the rare case when an individual brake hose component of the WUR-03R Service Campaign kit is needed.
WUA-86R2020-06-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. In the interest of customer satisfation, Subaru of America, Inc. (Subaru) is initiating a service program to update the Harman Kardon head unit on certain vehicles with the latest version of software.
WUQ-02R2020-06-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:ELECTRICAL. Subaru of America, Inc. (Subaru) is recalling certain 2017-2019 model year Impreza and 2018-20109 Crosstrek vehicles due to improper Engine Control Module (ECM) programming.
11-200-20R2020-06-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM) for hard starting in sub-freezing temperatures, DTC P0400, and surging in high altitudes.
12-288-202020-06-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:MECHANICAL; SEATS. This bulletin announces a design change made to the Slide Rail components of the left and right front power seat frame / track assemblies used on the models listed.
01-181-202020-05-04. Service bulletin. EQUIPMENT. All Models (Vehicle Cleaning- COVID-19Best Practices)
11-200-20R2020-05-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM).
15-263-202020-05-04. Service bulletin. ELECTRICAL SYSTEM. In the intrest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty for the listed models and model years equipped with a Harman Gen. 3.0 Audio and Navigation head unit.
15-195-16R2020-05-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service information bulletin provides important information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DCM). All models with STARLINK Telematics System.
09-71-202020-04-03. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. This bulletin provides a service procedure to address a small number of concerns regarding a rattle/ buzz-type sound coming from the fuel tank area.
15-240-19R2020-04-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize effciency while addressing customer concerns.
07-174-202020-04-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides details of a correction to the diagnostic procedure for DTC B2350- REAR RADAR COMMUNICATION ERROR on the models listed.
12-283-202020-04-03. Service bulletin. EQUIPMENT; STRUCTURE. This bulletin announces a design change made to the hood stay support. This change will prevent vibration sounds resulting from contact with adjacent under-hood components.
07-173-202020-04-02. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This Service Information Bulletin provides insight on how to address a customer concern of the rear hatch, Power Rear Gate (PRG) or trunk release operating (or finding the PRG/trunk open unexpectedly after parking) without a specific input (button press) from the operator.
17-17-13R2020-04-02. Service bulletin. AIR BAGS; EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
07-171-202020-04-02. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin is in response to several battery sensor replacements resulting from improper removal and/or installation practices.
12-279-20R2020-04-02. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin announces availability of new outer door handles to address isolated concerns of the chrome finish peeling.
07-169-202020-03-03. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin describes a change made to the labels applied to the push to start switches used on the models listed.
01-180-202020-03-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Service Information bulletin informs of an upcoming correction to the Service Manual involving Gear Position shown in Freeze-Frame Data acquired during Engine diagnosis.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.