Wheel Lug Nuts- Design Change – 2009-2020 Subaru

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Bulletin Number: 05-79-20R; Revised: 09/29/21 Page 1 of 2 Continued… CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS. Subaru 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. Subaru of America, Inc. is ISO 14001 Compliant ISO 14001 is the international 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. NUMBER: 05-79-20R DATE: 12/15/20 REVISED: 09/29/21 APPLICABILITY: 2013-20MY Crosstrek 2010-20MY Forester 2009-20MY WRX & WRX STI 2013-20MY BRZ SUBJECT: Wheel Lug Nuts- Design Change INTRODUCTION: This Service Information Bulletin announces a change made to the wheel lug nuts on the models listed above. The change is in response to a number of reports describing rust inside of the nut as shown here in the example photo. A thicker plating surface is now applied during the manufacturing process to prevent rust from developing. PRODUCTION CHANGE INFORMATION: The new wheel lug nuts have been incorporated into the the production of Japan built models during July of 2021. This bulletin will be revised with the starting VIN information when it becomes available. PART INFORMATION: The new WHEEL NUT part number is 28171AJ001. NOTE: Any orders placed for the old part numbers 28171AG000 and 28171AJ000 will be automatically switched to the new 28171AJ001 part number. REMINDER: Always order the most up-to-date replacement parts based on the specific VIN being repaired. SERVICE INFORMATION BULLETIN ATTENTION: GENERAL MANAGER q PARTS MANAGER q CLAIMS PERSONNEL q SERVICE MANAGER q IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. ©2020 Subaru of America, Inc. All rights reserved. Bulletin Number: 05-79-20R; Revised: 09/29/21 Page 2 of 2 SERVICE PROCEDURE / INFORMATION: REMINDER: Customer satisfaction and retention starts with performing quality repairs. Service procedures for wheel nut replacement and their torque value remain unchanged. Always refer to the applicable Service Manual and review the full requirements of the repair being performed. Service Manual procedures contain information critical to performing effective repairs, first time, every time. 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.

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