WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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.
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.
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.
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.
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.
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.
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.
15-211-17R2020-03-02. Service bulletin. 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 utilized in the models as listed.
11-200-20R2020-03-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM).
15-214-17R2020-03-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
07-166-202020-02-05. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin announces part number change information for the ignition coils used on the models listed.
15-254-19R2020-02-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The first TomTom map update for Gen 3.0 Harman navigation equipped vehicles was made available.
15-245-19R2020-02-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This bulletin provides a new reprogramming procedure (FOTA) to optimize the Harman Gen 3 Audio and Navigation head units (H/U) utilized in the models
17-17-13R2020-02-05. Service bulletin. AIR BAGS; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
Subaru Retailers2020-02-05. Service bulletin. ELECTRICAL SYSTEM. This announcement is in regards to the class action lawsuit regarding Harman Gen 3.0 Audio and Audio/ Navigation Head Units in certain Subaru vehicles.
15-211-17R2020-02-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; 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.
WUQ-02R2020-01-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Subaru of America, Inc. (Subaru) is recalling certain 2017-2019 model year Impreza and 2018-2019 Crosstrek vehicles due to improper Engine Control Module (ECM) programming. A total of 466,205 U.S. vehicles will be affected by this recall.
Subarunet Announ2019-12-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:IGNITION. Owner notification schedule: WUQ-02 Impreza/Crosstrek ignition coil reprogramming recall.

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