Service bulletin 07-161-19

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)
Type	Service bulletin
NHTSA id	10166916
Published by NHTSA	2019-11-01
Manufacturer's number	07-161-19
Manufacturer's date	2019-10-18
NHTSA component	AIR BAGS

NHTSA's summary

This Service Information Bulletin announces a design change made to the side curtain and knee airbag modules on the models listed above to optimize commonization with the Japanese production parts. The change involves the mixture ratio of Argon to Helium used in the inflator gas: • OLD gas ratio: 94% Argon, 6% Helium • NEW gas ratio: 96% Argon, 4% Helium. All other specifications of these modules are unchanged.

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

Air bags

Vehicles listed
SUBARU ASCENT	2019
SUBARU CROSSTREK	2018, 2019
SUBARU IMPREZA	2017, 2018, 2019
SUBARU WRX	2017, 2018, 2019

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
12-240-22R	2025-06-03. Service bulletin. This bulletin announces the repair procedures for the left and right-side horns to address DTC B1610 (Front Sub Sensor RH Failure) detected when the horns are operated shortly after engine start up.
Subarunet Announcement	2024-08-05. Other. This announcement provides information on Takata Recall Escalated Towing Program.
17-18-23	2023-06-05. Service bulletin. This bulletin announces availability of the one-time use mounting clip and spacer clip for the air bag curtain module.
171713R	2023-04-24. Service bulletin. Event Data Recorder (EDR) Function of Airbag Module
171713	2023-04-03. Service bulletin. Event Data Recorder (EDR) Function of Airbag Module
17-17-13R	2020-04-02. Service bulletin. This bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
17-17-13R	2020-02-05. Service bulletin. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
07-149-19	2019-05-20. Service bulletin. This Service Information bulletin serves a quick reminder to always perform the Clear Memory function of the Airbag system using the Subaru Select Monitor 4 after replacement of any airbag system sensor. Failure to do so will most likely result in the sensor-related DTC(s) remaining in memory, Airbag warning light illumination and possible unnecessary component replacement. Clearing DTCs after a repair then confirming codes do not return is the most effective method of verifying a proper repair and should always be performed.
17-17-13R	2019-03-11. Service bulletin. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
17-17-13R	2018-05-29. Service bulletin. NOTE: The Airbag systems used on previous and current WRX, STI and Tribeca models are NOT equipped with EDR functionality. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system. The function of the EDR is best explained using the following statements found in the vehicle Owner?s Manual: ?This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR is to record, in certain crash or near crash-like situations such as an airbag deployment or hitting a road obstacle, data that will assist in the understanding how a vehicle?s systems performed. The EDR is designed to record data related to vehicle dynamics and safety systems for a short period of time, typically 30 seconds or less. The EDR in this vehicle is designed to record such data as: ? How various systems in your vehicle were operating; ? Whether or not the driver and passenger safety belts were buckled/fastened; ? How far (if at all) the driver was depressing the accelerator and/or brake pedal; ? How fast the vehicle was traveling. This data can help provide a better understanding of the circumstances in which crashes and injuries occur.