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Service bulletin 03-83-20R

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 id10171926
Published by NHTSA2020-03-02
Manufacturer's number03-83-20R
Manufacturer's date2020-02-21
NHTSA componentPOWER TRAIN

NHTSA's summary

This bulletin announces availability of new shift forks and the corresponding sleeve and hub assembly to address isolated customer concerns of a rattling / vibration -type sound from the shift knob. The sound is primarily reported while driving in 4th gear between 1900 and 2500 rpm.

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

Transmission and driveline

Vehicles listed
SUBARU CROSSTREK2018, 2019, 2020
SUBARU FORESTER2014, 2015, 2016, 2017, 2018
SUBARU WRX2015, 2016, 2017, 2018, 2019, 2020

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 (T2026-10-05. Other. This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
16-158-262026-09-03. Service bulletin. This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR580 model CVT transmissions used in the models listed.
16-156-25R2026-09-03. Service bulletin. This bulletin announces a design change made to the CVT Control Valve Body. The updated valve body incorporates an enhanced valve sleeve to improve durability. This is an revised version of the original bulletin.
16-154-25R2026-09-03. Service bulletin. This Service Information Bulletin announces the release of a new diagnostic assistance application for TR690 and TR580 CVT-equipped vehicles. This is an revised version of the original bulletin.
16-132-20R2026-09-03. Service bulletin. This Bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions used in the models listed. This is an revised version of the original bulletin.
SubaruNet Announcement (C2026-09-03. Other. This Announcement provides diagnostic assistance for CVT issues.
16-156-25R2026-07-01. Service bulletin. This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability. (This is an revised version of the orignal bulletin.)
18-241-262026-06-01. Service bulletin. This Bulletin announces a correction to the diagnostic procedures for certain CVT related DTCs, including P0730, P0746, P0747, P0841, P0846, P0867, P1867, P1894, and P2723.
16-156-25R2026-06-01. Service bulletin. This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability.
SubaruNet Announcement (R2026-06-01. Other. This announcement provides information on the remanufactured CVT transmission program.