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Service bulletin 4-26-20

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 id10185065
Published by NHTSA2021-01-05
Manufacturer's number4-26-20
Manufacturer's date2020-12-03
NHTSA componentSTEERING:GEAR BOX (OTHER THAN RACK AND PINION); POWER TRAIN

NHTSA's summary

This bulletin describes a design change to the replacement hydraulic-type steering gearbox assembly.

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

Steering, Transmission and driveline, Steering gear

Vehicles listed
SUBARU WRX STI2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)

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
11-178-182018-03-13. Service bulletin. 6MT MODELS ONLY. This bulletin announces availability of ECM reprogramming files to optimize the ECM with improved diagnostic logic for DTC P0852 (Park/Neutral Switch Input Circuit High) detection. If the shifter is moved too fast, the gear change may not be properly detected by the ECM causing the P0852 to set.