# Service bulletin 04\-21\-18

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: 10143869
- Published by NHTSA: 2018\-08\-20
- Manufacturer's number: 04\-21\-18
- Manufacturer's date: 2018\-07\-24
- NHTSA component: STEERING

## NHTSA's summary

This bulletin announces availability of a new Electronic Power Steering \(EPS\) gear box assembly designed to address a VERY limited number of customer concerns regarding uneven steering effort felt when turning left or right. In areas where high concentrations of road salt are used to melt ice and snow, corrosion may develop and cause a portion of the gear box housing to crack if the vehicle were to suffer a large enough impact from hitting a pothole or similar type of road hazard.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143869-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143869-0001.pdf)

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

## Components

Steering

## Vehicles listed

- 2012 to 2015 SUBARU CROSSTREK
- 2016 to 2017 SUBARU CROSSTREK
- 2014 to 2018 SUBARU FORESTER
- 2012 to 2016 SUBARU IMPREZA

## Other bulletins for the same vehicles and component

- [05\-97\-26](/bulletins/11032035.md), 2026-05-04, Service bulletin: STEERING; WHEELS. This Bulletin provides the diagnostic procedures to be followed when addressing customer concerns of steering wheel/vehicle body vibration when driving at highway speeds when tire/wheel balance is suspected.
- [064714](/bulletins/10235894.md), 2023-05-08, Service bulletin: STEERING; ELECTRICAL SYSTEM. Revision to Troubleshooting Information for VDC DTC C0071
- [SOA321099](/bulletins/10235874.md), 2023-05-08, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT; FUEL/PROPULSION SYSTEM; STEERING. Special Service Tools
- [041314](/bulletins/10232871.md), 2023-03-13, Service bulletin: POWER TRAIN; STEERING; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; STEERING:ELECTRIC POWER ASSIST SYSTEM. New Electric Power Steering \(EPS\) Control Unit for DTC C2532
- [04\-27\-21R](/bulletins/10199960.md), 2021-08-05, Service bulletin: STEERING. As part of Subaru’s dedication to customer satisfaction, Subaru of America, Inc. \(SOA\) is announcingan extension to the Basic New Car Limited Warranty for the Electronic Power Steering \(EPS\) GearBox Assembly for certain 2012\-2018 MY vehicles.
- [Subaru Owner Let](/bulletins/10199957.md), 2021-08-04, Service bulletin: STEERING; EQUIPMENT. As part of Subaru of America’s dedication to customer satisfaction, this letter is to inform you of an extension to the Basic New Car Limited Warranty for your vehicle’s Electronic Power Steering Gear Box Assembly.
- [Subarunet Announ](/bulletins/10199956.md), 2021-08-04, Service bulletin: EQUIPMENT; STEERING. As part of Subaru’s dedication to customer satisfaction, Subaru of America, Inc. \(SOA\) is announcing an extension to the Basic New Car Limited Warranty for the Electronic Power Steering Gear Box Assembly for certain 2012\-2018 MY vehicles.
- [04\-16\-17](/bulletins/10192927.md), 2021-05-10, Service bulletin: STEERING. This bulletin announces availability of a new steering wheel designed to address a possible customer concern of insufficient performance of the heated steering wheel feature on applicable models.
- [04\-23\-18R](/bulletins/10154409.md), 2019-03-11, Service bulletin: STEERING; STEERING:RACK AND PINION:RACK; STEERING:ELECTRIC POWER ASSIST SYSTEM. This bulletin provides helpful tips to simplify the diagnosis of sound concerns originating in the electronic power steering \(EPS\) gearbox \(steering rack\) assembly. If a vehicle presents with a ?rattling?, ?knocking? or possibly a ?clanging? type sound coming from the steering rack and / or a vibration felt through the steering wheel, use the flow chart below to help make diagnosis of the concern easier.
- [04\-13\-14R](/bulletins/10153185.md), 2019-02-19, Service bulletin: STEERING. IMPORTANT: This Service Bulletin has been as been replaced by TSB 04\-24\-18 dated 11/9/2018 entitled ?Increased Steering Effort when Cold, DTC C2532?. Please refer to this new bulletin for the latest information regarding this condition.

JSON: [/v1/bulletins/10143869](/v1/bulletins/10143869)

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