# Service bulletin 05\-88\-21

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.

- Type: Service bulletin
- NHTSA id: 10216969
- Published by NHTSA: 2022\-08\-02
- Manufacturer's number: 05\-88\-21
- Manufacturer's date: 2022\-07\-05
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION

## NHTSA's summary

This bulletin announces a design change made to the front stabilizer bushings.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10216969-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10216969-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Suspension

## Vehicles listed

- 2019 to 2022 SUBARU ASCENT
- 2013 to 2015 SUBARU CROSSTREK
- 2016 to 2021 SUBARU CROSSTREK
- 2014 to 2022 SUBARU FORESTER
- 2015 to 2019 SUBARU LEGACY
- 2015 to 2022 SUBARU OUTBACK
- 2015 to 2021 SUBARU WRX

## Recalls for the same vehicles and component

- [26V436000](/recalls/nhtsa/26V436000.md), 2026-07-07: EQUIPMENT:OTHER:LABELS
- [2021226](/recalls/tc/2021226.md), 2021-04-15: Suspension
- [21V263000](/recalls/nhtsa/21V263000.md), 2021-04-15: SUSPENSION:REAR
- [2019536](/recalls/tc/2019536.md), 2019-10-25: Accessories
- [18V455000](/recalls/nhtsa/18V455000.md), 2018-07-10: EQUIPMENT:OTHER:LABELS; TIRES
- [16V576000](/recalls/nhtsa/16V576000.md), 2016-08-03: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER; SUSPENSION
- [2015249](/recalls/tc/2015249.md), 2015-06-04: Accessories
- [2015206](/recalls/tc/2015206.md), 2015-05-15: Accessories
- [2014413](/recalls/tc/2014413.md), 2014-09-22: Accessories
- [13V159000](/recalls/nhtsa/13V159000.md), 2013-04-24: EQUIPMENT

## Other bulletins for the same vehicles and component

- [05\-97\-25](/bulletins/11027092.md), 2026-01-06, Service bulletin: SUSPENSION. 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\-25](/bulletins/11027082.md), 2026-01-06, Service bulletin: SUSPENSION. This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.
- [05\-84\-21R](/bulletins/11027076.md), 2026-01-06, Service bulletin: SUSPENSION. This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.
- [03\-96\-25](/bulletins/11017444.md), 2025-05-01, Service bulletin: SUSPENSION; POWER TRAIN. 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.
- [WQQ\-52R](/bulletins/11016210.md), 2025-04-01, Service bulletin: SUSPENSION. 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\-95\-24](/bulletins/11012263.md), 2025-01-03, Service bulletin: SUSPENSION. This bulletin announces the repair procedures to be followed when encountering cases of a groaningtype sound from the rear of the vehicle heard when turning.
- [03\-94\-24](/bulletins/11008259.md), 2024-10-02, Service bulletin: SUSPENSION. This bulletin outlines the judgment criteria to be used when inspecting front transverse link bushings to reduce unnecessary bushing replacement.
- [05\-91\-24](/bulletins/11005593.md), 2024-08-05, Service bulletin: SUSPENSION. This Bulletin provides guidance for diagnosing a leaking front or rear suspension strut.
- [15\-270\-20R](/bulletins/10254003.md), 2024-05-02, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4 Audio and Navigation system utilized in the models listed.
- [03\-91\-23R](/bulletins/10253993.md), 2024-05-02, Service bulletin: EQUIPMENT; POWER TRAIN. This bulletin announces the design change made to the front drive axle shaft assemblies to address cases of a clicking/cracking\-type sound heard when driving with the steering wheel in the fully locked \(left or right\) position.

JSON: [/v1/bulletins/10216969](/v1/bulletins/10216969)

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