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Service bulletin 05-91-24

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 id11005593
Published by NHTSA2024-08-05
Manufacturer's number05-91-24
Manufacturer's date2024-07-08
NHTSA componentSUSPENSION

NHTSA's summary

This Bulletin provides guidance for diagnosing a leaking front or rear suspension strut.

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

Suspension

Vehicles listed
SEAT COVER UNLIMITED SEAT COVER UNLIMITED
SUBARU 64669AC260MU
SUBARU 64669AC360MU
SUBARU 64669AC370MU
SUBARU 64669AC380MU
SUBARU 64669AC390MU
SUBARU ASCENT2019, 2020, 2021, 2022, 2023, 2024
SUBARU B9 TRIBECA2006, 2007, 2008, 2009, 2010, 2011, 2012
SUBARU BAJA2003, 2004, 2005, 2006
SUBARU BRZ2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
SUBARU CROSSTREK2012 to 2015
SUBARU CROSSTREK2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
SUBARU CROSSTREK HYBRID2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
SUBARU FORESTER2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU IMPREZA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU IMPREZA STI2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
SUBARU IMPREZA WRX2015 (the catalog's model; the bulletin names a series or trim of it)
SUBARU LEGACY2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU OUTBACK2000 to 2004
SUBARU OUTBACK2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU OUTBACK SPORT2006 (the catalog's model; the bulletin names a series or trim of it)
SUBARU OUTBACK SPORT2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
SUBARU SAFETY BELTS
SUBARU SOLTERRA2023, 2024
SUBARU TRIBECA2013 to 2014
SUBARU WAGON2002 to 2003
SUBARU WRX2002 to 2014
SUBARU WRX2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
SUBARU WRX STI2004 to 2005
SUBARU WRX STI2008 to 2014
SUBARU WRX STI2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
SUBARU XV CROSSTREK2012, 2013, 2014, 2015
SUBARU XV CROSSTREK2016 to 2017
SUBARU XV CROSSTREK2022 to 2024
SUBARU XV CROSSTREK HYBRID2014, 2015 (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.

Recalls for the same vehicles and component
23V3920002023-06-01. SUSPENSION:FRONT:CONTROL ARM:LOWER ARM
21V6750002021-08-30. SUSPENSION:FRONT:CONTROL ARM:LOWER ARM
20212262021-04-15. Suspension
21V2630002021-04-15. SUSPENSION:REAR
16V5760002016-08-03. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER; SUSPENSION
20113442011-09-19. Suspension
11V4640002011-09-06. SUSPENSION:FRONT:CONTROL ARM:LOWER ARM
20031672003-07-07. Suspension
03V2320002003-06-26. SUSPENSION:FRONT
20031172003-04-30. Suspension

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
05-93-262026-08-04. Service bulletin. This bulletin announces the design change made to the front coil spring to address cases of a rubbing sound heard driving over bumps and/or turning.
05-96-262026-02-02. Service bulletin. This bulletin announces design changes to the front stabilizer link to address concerns about boot cracking, which can allow grease to escape.
05-92-25R2026-01-06. Service bulletin. This bulletin announces the design change made to the front lower control arms developed to address cases of a click or cracking type sound heard when moving forward or backward at low speed with the steering wheel fully turned position.
05-97-252026-01-06. Service bulletin. This Bulletin announces a design change to the rear stabilizer bar bushing to address knocking sounds as a result of excessive clearance between the stabilizer bar and the bushing. The updated bushing features enhanced rubber material that is more elastic in cold climates.
05-95-252026-01-06. Service bulletin. This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.
05-84-21R2026-01-06. Service bulletin. This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.
03-96-252025-05-01. Service bulletin. This bulletin announces design changes made to the rear axle hubs. These changes have been implemented to reduce cases water intrusion further leading to harmonic, humming, and grinding type sounds heard from the axle hub while driving.
05-92-25R2025-05-01. Service bulletin. This bulletin announces the design change made to the front lower control arms developed to address cases of a click or cracking type sound heard when moving forward or backward at low speed with the steering wheel fully turned position.
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.