AWD Transfer Clutch Chatter Sound / Shudder – 2014-2019 Subaru

NHTSA ID Number: 10160485

Manufacturer Communication Number: 16-120-19

Summary

This bulletin provides a procedure to follow for addressing customer concerns of a shuddering condition or chattering -type sound heard or felt when making sharp turns. If an applicable vehicle presents with the condition as described, it is recommended to perform the transfer clutch break-in procedure as described.

 

21 Affected Products

Vehicles

MAKE MODEL YEAR
SUBARU ASCENT 2019
SUBARU FORESTER 2014-2018
SUBARU LEGACY 2015-2019
SUBARU OUTBACK 2015-2019
SUBARU WRX 2015-2019

INTRODUCTION:

This bulletin provides a procedure to follow for addressing customer concerns of a shuddering condition or chattering -type sound heard or felt when making sharp turns.  If an applicable vehicle presents with the condition as described, it is recommended to perform the transfer clutch break-in procedure as described below.

 

SERVICE PROCEDURE / INFORMATION:

REMINDER:  Customer satisfaction and retention starts with performing quality repairs.

NOTES:  BEFORE performing this procedure:

  • The tires should always be confirmed to be within specification. As little as a quarter inch (1/4”) difference in rolling circumference can cause internal issues.
  • Check for and address any stored DTC(s).
  • Make sure the X-Mode switch is turned OFF.
  • This procedure is best performed in an open parking lot area where the vehicle can be driven in circles without any interference from other traffic. Do NOT attempt this procedure on public roads.
  • The following transfer clutch break-in procedure may have to be completed more than once to obtain the desired results.

While holding the steering in the full lock (left or right) position, drive the vehicle in “D” range at about 3 MPH then turn the steering wheel to full lock in the opposite direction to complete a “Figure 8”.  Vary the vehicle speed by accelerating and braking.  After completing about 10 figure eights, road test to confirm if the condition has changed. This procedure may have to be performed more than once to achieve the desired results.

If the break-in procedure above does not address the condition, proceed with diagnosing the condition following the procedure in the applicable Service Manual.

See the September, 2018 issue of TIPS for more information regarding CVT repairs.



NUMBER: 16-120-19
DATE: 03/04/19

https://www.nhtsa.gov/recalls?nhtsaId=10160485

https://static.nhtsa.gov/odi/tsbs/2019/MC-10160485-9999.pdf

Download (PDF, 266KB)


 

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Last update on 2019-09-11 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-09-11 / Affiliate links / Images from Amazon Product Advertising API

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