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Service bulletin 05-52-12

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 id10093183
Published by NHTSA2017-02-28
Manufacturer's number05-52-12
Manufacturer's date2012-10-08
NHTSA componentSUSPENSION:REAR

NHTSA's summary

THE PURPOSE OF THIS BULLETIN IS TO INFORM YOU OF A CHANGE MADE TO ENHANCE VEHICLE PRODUCTION DURING THE MIDDLE OF THE 2011MY. THIS CHANGE INVOLVES THE SELF-LOCKING NUTS AND TIGHTENING TORQUE SPECIFICATIONS USED ON THE 5 SELECTED REAR SUSPENSION COMPONENTS SHOWN IN THE ILLUSTRATION BELOW.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Suspension

Vehicles listed
SUBARU FORESTER2011
SUBARU WRX2011
SUBARU WRX STI2011

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
WQK-47R2025-04-01. Service bulletin. Subaru of America, Inc. (SOA) has determined that a defect, which relates to motor vehicle safety, exists on certain 2005-2009 model year Subaru Legacy and Outback vehicles, 2009- 2013 Subaru Forester vehicles, 2008-2011 Subaru Impreza, WRX, and STI vehicles, and 2012-2014 Subaru WRX and STI vehicles currently or formerly registered in at least one of the “salt-belt” states listed below or in the District of Columbia. Part numbers in the bulletin has been updated.
WQQ-52R2025-04-01. Service bulletin. Due to incomplete repair instructions previously provided in the WQK-47 recall bulletin, the WQQ-52 recall will involve applying additional anti-corrosion material to the four-way (2-2 way) joint connector area of the brake line system on Forester, Impreza, WRX, and STI vehicles previously repaired under the WQK-47 (14V-311) brake line corrosion recall prior to the December 23, 2014 WQK-47 recall bulletin revision. The revisions to the bulletin are for part number changes.
03-94-242024-10-02. Service bulletin. This bulletin outlines the judgment criteria to be used when inspecting front transverse link bushings to reduce unnecessary bushing replacement.
05-91-242024-08-05. Service bulletin. This Bulletin provides guidance for diagnosing a leaking front or rear suspension strut.
05-58-142017-02-02. Service bulletin. SOUND FROM REAR SUSPENSION UPPER CONTROL ARM - THIS BULLETIN PROVIDES A PROCEDURE FOR DIAGNOSING AND REPAIRING A RATTLE-TYPE REAR SUSPENSION SOUND DETERMINED TO BE COMING FROM THE UPPER CONTROL ARM BALL JOINT.
05-58-142016-05-23. Service bulletin. SOUND FROM REAR SUSPENSION UPPER CONTROL ARM - THIS BULLETIN PROVIDES A PROCEDURE FOR DIAGNOSING AND REPAIRING A RATTLE-TYPE REAR SUSPENSION SOUNDDETERMINED TO BE COMING FROM THE UPPER CONTROL ARM BALL JOINT.
05-52-122016-05-13. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.