Loading...

NHTSA ID Number: 10143869

Manufacturer Communication Number: 04-21-18

TSB/Document Date: 2018-08-20


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.


If the PDF is very large, it may not load in the preview below.

Download PDF [316.63 KB]


Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.

If the TSB PDF does not show, download or view it on the NHTSA Website.

Click on the (+) Plus Sign

Then Click on Associated Document(s)


SaleBestseller No. 1
Autel Scanner MaxiCOM MK808S: 2026 Bidirectional Tool as MX808S MK808BT Pro M808Z, Work as MaxiCheck MX900 MK900BT, 28+ Service, 3000+ Active Tests, All System OBD2 Diagnostics, OS 11, 10X Faster
  • 💝【Questions? We’re Here Anytime】MK808S is a...
  • 🔥🔥🔥【2026 NEWLY RELEASED BI-DIRECTIONAL...
  • 【28+ MOST POPULAR RESET SERVICE FOR 150 MAKES】Autel...
  • 【ALL SYSTEM DIAGNOSTICS, FACTORY-LEVEL SCANNER】The...
  • 【AUT0 SCAN & AUT0V1N, 10X FASTER】How much have you spent...
SaleBestseller No. 2
Autel Scanner MaxiCOM MK900BT, 2026 MK900-BT V2.0 Bidirectional Diagnostic Tool, 8in Up of MK900 MX900 MK808S MK808BT MX808S MK808Z, 3000+ Active Tests, 40+ Service, CAN-FD&DOIP, All System, FCA 11 OS
  • 💯【Conta.ct us for Support Directly】If you met any...
  • 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
  • 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
  • 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
  • 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...

This product presentation was made with AAWP plugin.


Search NHTSA Database for Recalls

View Latest Recalls


Search NHTSA Database for Vehicle Investigations

View Latest Vehicle Investigations


Search NHTSA Database for Vehicle Complaints

View Latest Vehicle Complaints


TSB/Document ID: 04-21-18

Replacement Service Bulletin Number:

MFR Communication Date: 2018-07-24

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: STEERING

MFR Component System:

MFR Component Subsystem:


Previous TSB

Next TSB



ATTENTION:

CLAIMS PERSONNEL q

IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.

SERVICE MANAGER

© 2018 SubarueBay logo of America, Inc. All rights reserved.

GENERAL MANAGER q
PARTS MANAGER

q
q

SERVICE BULLETIN
APPLICABILITY:

SUBJECT:

NUMBER: 04-21-18

2012-2016MY Impreza
2013-2017MY Crosstrek
2014-2018MY Forester

DATE: 07/24/18

Uneven Steering Effort

INTRODUCTION:
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.
VERY IMPORTANT: Should this condition occur, there will NOT be a complete loss of steering
assist.
PRODUCTION CHANGE INFORMATION:
On Forester models, the new steering gear box assembly was incorporated into production starting
with VIN J*462815. Since this change took place after production ended for all but 2018 MY
Forester, there are no starting VINs for the other applicable models.
PART INFORMATION:
Description

Steering Gear Box
Assembly, EPS

Part Number

Applicability

34110SG021

2014-16MY Forester

34110SG090

2017-18MY Forester

34110FJ151

2012-14MY Impreza

34110FJ231

2015-16MY Impreza

34110FJ091

2013-14MY Crosstrek

34110FJ181

2014MY Crosstrek

34110FJ261

2015-17MY Crosstrek

Continued...
CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
SubarueBay logo Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.

Bulletin Number: 04-21-18; Date 07/24/18

SubarueBay logo of America, Inc. is
ISO 14001 Compliant
ISO 14001 is the internationaleBay logo standard for
excellence in Environmental Management
Systems. Please recycle or dispose of
automotive products in a manner that is friendly
to our environment and in accordance with all
local, state and federal laws and regulations.

Page 1 of 3

SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention
starts with performing quality repairs.
If a vehicle is presented with a customer concern of
uneven steering wheel effort felt when turning, after
confirming the condition, inspect the steering gear
box in the circled area shown in the illustration for
any evidence of cracking.
To determine if the steering gear box is a new-style unit, verify and compare the part number on the
label located on the bottom cover of the pinion as shown below to the Part Information table on
pg. 1. The new assemblies have been re-designed in addition to utilizing materials having improved
rust and corrosion resistance.

If a crack is confirmed, the EPS steering gear box assembly must be replaced. The service procedures
for replacing the assembly remain unchanged. Always refer to the applicable Service Manual and
review the full requirements of the repair being performed. The Service Manual procedures contain
information critical to performing an effective repair the first time and every time. This includes but
is not limited to: important SAFETY precautions, proper inspection criteria, necessary special tools,
required processes and related one-time-use parts needed for a complete and lasting repair.
WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited Warranty period or covered by an active SubarueBay logo
Added Security Classic or Gold plan, this repair may be submitted using the following claim
information:
Labor Description

Labor
Operation #

Labor
Time

EPS GEAR BOX ASSEMBLY R&R (Includes R&R of all necessary components,
Steering Position Sensor Calibration & Steering Toe Adjustment.)

B659-400

1.5

EPS TESTING & DIAGNOSIS

C659-011

0.5

SUBLET REPAIR, ADMINISTRATION EXPENSES

C101-108

0.3

Fail
Code
RDK-02

Continued...
Bulletin Number: 04-21-18; Date 07/24/18

Page 2 of 3

IMPORTANT REMINDERS:

SOA strongly discourages the printing and/or local storage of service information as
previously released information and electronic publications may be updated at any time.

Always check for any open recalls or campaigns anytime a vehicle is in for servicing.

Always refer to STIS for the latest service information before performing any repairs.

Bulletin Number: 04-21-18; Date 07/24/18

Page 3 of 3

1


SaleBestseller No. 1
OTOFIX D1 Lite 2026 Bidirectional Scan Tool, Bluetooth OBD2 Scanner Diagnostic Tool, 2 Years Free Update, 38+ Services, CANFD & DoIP Protocols, All System Diagnoses, ABS Bleeding, Auto VIN
  • 🎉[OTOFIX D1 Lite, Perfect Cost-effective Diagnostic Tool]: OTOFIX D1 Lite, a newest bidirectional scan tool from OTOFIX company, is a great choice for DIYers and repair shops. 👉This obd2 scanner diagnostic tool packs all practical functions: OE level all systems diagnoses, Bi-Directional Control, 38+ reset services fixing 99% of common problems, support DoIP & CANDF protocols and FCAeBay logo AutoAuth, high-end hardware configuration. Worldwide vehicles and 🔥2 Years Free Updating🔥 covered.
  • 🎉[Bi-Directional Scan Tool, Active Test]: OTOFIX D1 Lite bluetooth obd2 scanner can also command ECUs and monitor the operation of the actuators to track down the problems of certain parts, like windows, sunroof, wipers, fuel pumps, etc., saving repair time & trouble. This makes OTOFIX D1 Lite the most cost-effective bidirectional scan tool.
  • 🎉[2026 Newest, 38+ Hot Reset Functions]: Equipped with 38+ reset functions in one, the OTOFIX D1 lite automotive scanner diagnostic tool allows you to troubleshoot 99% of common vehicle problems. You can use this car diagnostic scanner holding enough functions to easily repair common vehicle models in your repair shops. Including Oil Reset, Injector Coding, Throttle, DPF Reset, SCR Reset, Gear Learning, Clutch Learning, Suspension, etc. Note* Reset functions vary by model.
  • 🎉[OE Level Full Systems Diagnostics]: Unlike the 2-system and 4-system diagnostic tools, the OTOFIX auto scan tool can complete comprehensive system diagnostics within 5 minutes. It accesses and scans all available onboard systems like for Engine /AT /ABS /EPB /BMS /TPMS /SRS /SAS /Audio System /BCM /Air Conditioning / etc., to read & clear codes, view live data, and check ECU information. Note: Active test is not involved.
  • 🎉[Powerful Hardware Configuration]: Designed with a fashion appearance & a 7” touchscreen and a weight of 463g, this OTOFIX D1 Lite OBD2 diagnostic scanner scan tool is convenient for everywhere and easy to use & store. Android9.0 OS and 2+64GB memory enhance multi-task smoothness and diagnostic operation, no more wasting too much time. 5800mAh battery allows hours-lasting use. WiFi & VCI1 also bring faster communication for your diagnostics.
SaleBestseller No. 2
OTOFIX D1 Lite Bidirectional Scan Tool with 2-Year Free Updates, 2026 New All System Automotive Diagnostic Scanner, 38+ Reset Services, FCA AutoAuth, Active Test, CANFD&DOIP, Auto VIN
  • 🏆【2026 TOP OBD2 Scanner Diagnostic Tool】OTOFIX D1 Lite wireless obd2 scanner has upgraded hardware configuration and car coverage. The newly upgraded D1 Lite with 🔥OS Android 9.0🔥1.5Ghz 4 core high efficiency processor🔥2GB RAMeBay logo+64GB ROM large storage🔥5800mAh large battery, more stable and longer lasting diagnostics🔥 38+ Reset🔥action tests🔥full system diagnostic🔥Supports MV105 endoscope🔥21+ Language Supports🔥100000+ vehicle coverage to meet all your daily maintenance needs.
  • 👍【Bi-Directional Control / Active Test】D1 Lite obd2 scanner has bidirectional control(worth $300+), which is the most beloved feature among mechanic. If your headlights or car windows are broken, going to a repair shop will cost a lot of money. You can use D1 Lite to send execution commands to the ECU module and identify the repair status. Such as ABS, car windows, doors, valves, wipers, headlights, etc., effectively shorten diagnostic time and reduce diagnostic costs.
  • 🔥【All Systems Diagnostics, In-depth Checking】This advanced OBD2 Scanner D1 Lite can perform OE-level diagnosis of all systems including engine, transmission, airbag, ABS, ESP, TPMS, gateway, steering, radio, and air conditioning for more than 100 brands. This diagnostic scanner supports essential functions, such as reading ECU version info, reading and clearing fault codes, and reading data streams.With just a simple click, it provides you with accurate and in-depth diagnostics.
  • 🏆【38+ Reset Hot Functions】For repair workshops, holding an OTOFIX D1 Lite Auto scanner is a strong advantage over others. Its 38+ maintenance functions provide various solutions for all module repairs, including Oil Reset, TPMS Reset, Injector Coding, Suspension, Throttle Matching, etc., which will usher your repair business to a new pinnacle. Continuously updating will never make the functionality & compatibility out-of-date.
  • 🏆【150+ Models, 10000+ Car Coverage & 16 Languages】D1 Lite is a comprehensive car diagnostic scan tool, help you to troubleshoot car issues fast for 95% US, European, Asian auto makes. ✅ With frequent updates and optimizations allow D1 Lite to cover more vehicles to meet your needs. ✅ Multilingual menu allows auto mechanics around the world to use it without language barriers. 🚩Note: Kindly send us the S/N of the device to authorize new language updates before changing the menu language.
SaleBestseller No. 3
OTOFIX D1 Lite 2026 Bidirectional Scan Tool, 2 Years Free Update, 38+ Services, All System Diagnostic Scanner, Active Tests, AutoAuth FCA SGW, AutoVIN, CAN FD & DoIP, 99% Car Coverage
  • 【2026 OTOFIX D1 Lite Gives the Best Value for Money】OTOFIX D1 Lite bidirectional scan tool is more FASTER and SMARTER with 2026 Enhanced Hardwares & New Functions! 👍Alternative Bluetooth +USB connect 👍2G+64GB 👍4x ARM Cortex-A35 (1.5GHz) Processor (5X Faster CPU) 👍Android 9.0 OS 👍5G GHz WiFi 👍CANFD&DOIP 👍 FCAeBay logo AutoAuth 👍38+ Services 👍3K+ Bi-Directional Control 👍Full Systems Diagnose 👍2 Years Update 👍150+ Vehicle Coverage.
  • 👍【Active Tests】 OTOFIX D1 Lite is a bi-directional scan tool that can send commands to, and also receive information from vehicle control modules. This way, you can quickly locate and repair faulty auto parts. For Example: send direct commands to ask the vehicle to turn on/off the radiator fan, lights, sound horn, fuel pump, modulate throttle, open/close windows, operate mirrors and more. *Note that only available tests will be displayed in the menu.
  • 👍【38+ Service Functions】 OTOFIX D1 Lite scan tool offers 38+ of the hottest service functions that are commonly used for car repairs. That include Oil reset/SAS/EPB/BMS/Throttle/ABS bleeding, and 2065-new SUS/ADBLUE/NOX/Headlamp resets (and more) to help restore your car status after repairs are done. Compared to other diagnostic scanners for cars, the OTOFIX D1 Lite scanner is much more fully-featured. *Note that specific functions available depend on the make/model/year of your car.
  • 👍【All System Diagnostics + Cloud Report Management】 This 2026 car scanner OTOFIX D1 Lite provides troubleshooting and data for all ECUs: read/clear DTCs, view graphic live data/VIN, and locate system faults for safe driving. With Cloud Report Management, you can save detailed reports to cloud servers and easily shared them with others via QR codes/emails/text messages. Others can access these reports from any device (smartphones/tablets/PCs …) anytime, and you can better manage repair work.
  • 👍【99% Car Coverage】 This one-station car scanner diagnostic for all cars works on 150+ major car brands across the world. 1) It supports CAN-FD/DoIP protocols: compatible with GMCAVALIER/TRAX/Encore/Envision/GL8(LSY)/CT4/CT5 after 2019; VolvoeBay logo after 2018; Land RovereBay logo/JaguareBay logo after 2017; and BM.W F/G all chassis. 2) For models equipped with security modules (such as Renault & 2018+ FCAeBay logo SGW), its built-in AutoAuth allows you to easily break diagnostic barriers after registration.

This product presentation was made with AAWP plugin.


Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API


 
Share to...