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Service bulletin WTN-74R

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 id10153179
Published by NHTSA2019-02-19
Manufacturer's numberWTN-74R
Manufacturer's date2018-11-07
NHTSA componentBACK OVER PREVENTION

NHTSA's summary

The rear view camera image may not display properly. More specifically, due to a software problem within the infotainment unit, the following may occur: ? During initial boot-up, a memory error might result in a blank screen; or ? If multiple processes occur at the same time, the screen might freeze. If the rear view camera image is not displayed or the image freezes, it does not provide an additional view of the area behind the vehicle to the driver when the vehicle is in reverse. As a result, there is an increased risk of injury or a crash

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

Driver assistance, Backup camera

Vehicles listed
SUBARU IMPREZA2017

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

Recalls for the same vehicles and component
17V1320002017-03-02. BACK OVER PREVENTION: CAMERA SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
WTN-74R2019-08-06. Service bulletin. "The rear view camera image may not display properly. More specifically, due to a software problem within the infotainment unit, the following may occur: • During initial boot-up, a memory error might result in a blank screen; or • If multiple processes occur at the same time, the screen might freeze. If the rear view camera image is not displayed or the image freezes, it does not provide an additional view of the area behind the vehicle to the driver when the vehicle is in reverse. As a result, there is an increased risk of injury or a crash. "
WTN-74R2018-12-10. Service bulletin. The rear view camera image may not display properly. More specifically, due to a software problem within the infotainment unit. The remedy procedure will be to reprogram the infotainment unit with a software update. The procedure will involve either downloading the software update files from Subarunet (or using those sent directly from Nuspire) and transferring them onto a flash drive for head unit installation.
WTN-74R2018-12-10. Service bulletin. The rear view camera image may not display properly. More specifically, due to a software problem within the infotainment unit. The remedy procedure will be to reprogram the infotainment unit with a software update. The procedure will involve either downloading the software update files from Subarunet (or using those sent directly from Nuspire) and transferring them onto a flash drive for head unit installation.