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Service bulletin 03-78-17

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10237271
Published by NHTSA2023-06-05
Manufacturer's number03-78-17
Manufacturer's date2023-05-11
NHTSA componentEQUIPMENT; POWER TRAIN

NHTSA's summary

This bulletin announces a design change to the clutch release bearing.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Transmission and driveline

Vehicles listed
SUBARU WRX2015, 2016, 2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
SubaruNet Announcement (R2026-06-01. Other. This announcement provides information on the remanufactured CVT transmission program.
03-97-262026-05-04. Service bulletin. This bulletin announces the service manual correction regarding clutch master cylinder reservoir service procedures.
Subaru Service Technical2025-09-02. Other. Subaru Service Technical Support Newsletter special edition.
03-96-252025-05-01. Service bulletin. 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.
16-103-16R2025-03-04. Service bulletin. This bulletin has been developed in response to a small number of customer concerns regarding fluid seepage found coming from the CVT assembly.
Subarunet Announcement2024-08-05. Other. This annoucement provides parts personnel information about remanufactured transmissions that will no longer be available.
16-112-18R2024-06-04. Service bulletin. This bulletin announces a design change to the CVT select lever (shifter) mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park.
FAQ 15-317-24R2024-05-02. Service bulletin. T16 Warranty Extension (15-317-24R) Frequently Asked Questions.
15-317-24R2024-05-02. Service bulletin. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the Data Communication Module (DCM) Warranty from 3 years (36 months) of 36,000 miles to 8 years (96 months) or 100,000 miles, whichever comes first.
15-312-23R2024-04-03. Service bulletin. This bulletin announces repair procedures to be used when diagnosing dark current draw (parasitic draw) on vehicles equipped with Gen 1 Data Control Modules.