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Service bulletin AS-21475

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10039145
Published by NHTSA2011-07-12
Manufacturer's numberAS-21475
Manufacturer's date2010-08-01
NHTSA componentSUSPENSION; STEERING

NHTSA's summary

FORD: MAINTENANCE PROCEDURES WHEN WORKING ON FRONT END SUSPENSION OR STEERING. 2011 MUSTANG. *RM

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Steering, Suspension

Vehicles listed
FORD MUSTANG2011

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
SSM 476142018-11-19. Service bulletin. Some 2011 - 2014 Mustang vehicles equipped with a 3.7L V6 engine and MT82 manual transmission may exhibit a vibration felt in the shifter, and/or the seat track and steering wheel, on deceleration between 3500 and 2000 engine RPM. This an operating characteristic of the vehicle and no repairs should be attempted.
SSM 462102017-03-20. Service bulletin. SOME 2010-2016 EPAS EQUIPPED VEHICLES MAY EXHIBIT STEERING RELATED NOISES. THE WORKSHOP MANUAL (WSM) DIAGNOSTIC PROCEDURES HAVE BEEN UPDATED IN SECTION 211-02. WHEN DIAGNOSING AND REPAIRING EPAS STEERING NOISES USE THE UPDATED PROCEDURES.
SB-215132011-05-04. Service bulletin. FORD: SOME 2011 MUSTANGS MAY HAVE A CLUNK NOISE FROM THE STEERING OR SUSPENSION SYSTEM. *RM