WenmarOpen by Wenmar Pro

Service bulletin SSM 45938

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 id10091423
Published by NHTSA2017-02-13
Manufacturer's numberSSM 45938
Manufacturer's date2016-07-18
NHTSA componentPOWER TRAIN:DRIVELINE:DRIVESHAFT; EQUIPMENT; POWER TRAIN

NHTSA's summary

SOME 2015-2017 MUSTANG VEHICLES MAY EXPERIENCE A DRIVELINE VIBRATION DIRECTLY RELATED TO A VEHICLE SPEED OF 70-100KMH (50-70MPH) AND IS PERCEIVED AS A TREMOR IN THE FLOOR PAN, SEAT TRACK, OR STEERING WHEEL AND MAY BE HEARD AS A RUMBLE, HUM, OR BOOM. BEFORE REPLACEMENT OF ANY PARTS BE SURE TO VERIFY THE CONCERN WITH A ROAD TEST AND VISUALLY INSPECT THE DRIVESHAFT FOR DAMAGE, UNDERCOATING, INCORRECTLY SEATED UNIVERSAL JOINTS, ROTATE THE DRIVESHAFT BY HAND TO FEEL FOR ANY BINDING OR END PLAY IN THE UNIVERSAL JOINTS. IF NO CONCERN IS FOUND CHECK AND CORRECT ANY TIRE BALANCE ISSUES USING LOADED HUNTER ROAD FORCEù METHOD. IF A CONCERN IS STILL PRESENT BALANCE THE DRIVESHAFT USING THE MASTERTECHù SERIES MTS 4000 DRIVELINE BALANCE AND NVH ANALYZER. REFER TO WORKSHOP MANUAL SECTIONS 100-04,200-04A AND 205-01. USE LABOR OPERATION 1007D AND ANY APPROPRIATE COMBINATIONS.

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

Equipment and accessories, Transmission and driveline, Driveshaft

Vehicles listed
FORD MUSTANG2015, 2016, 2017

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