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Service bulletin SSM 47978

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 id10160884
Published by NHTSA2019-06-06
Manufacturer's numberSSM 47978
Manufacturer's date2019-05-13
NHTSA componentTIRES

NHTSA's summary

Some 2015-2019 Mustang GT/GT350/GT350R Coupe vehicles equipped with Michelin Pilot Sport Cup 2 tires may exhibit tires which appear to have worn treads even when the tires are new or have low miles. This may be due to the fact that these tires come from the factory with a tread design which has shallower tread depth than most tires. There are also fewer grooves molded into the surface of the tire, with some areas of the tire showing no tread at all. Before condemning these tires as excessively worn, ensure that you are familiar with how these tires appear when new.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Tires

Vehicles listed
FORD MUSTANG2015, 2016, 2017, 2018, 2019

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 470082018-06-11. Service bulletin. Some 2018 Mustang vehicles equipped with the digital IPC may exhibit a "Service Tire Mobility Kit" message being displayed in the IPC. Press the OK button on the steering wheel to clear this message from the IPC. To prevent the message from returning on the next key cycle, press the settings button on the steering wheel, and in the menu, choose advanced settings> vehicle> tire mobility kit> 4 years. This should be performed even if the 4 years selection in this menu is already selected. Do not replace the tire mobility kit. Do not attempt any repairs at this time. Engineering is investigating, monitor OASIS for updates.
SSM 470082018-05-29. Service bulletin. Some 2018 Mustang vehicles equipped with the digital IPC may exhibit a "Service Tire Mobility Kit" message being displayed in the IPC. Press the OK button on the steering wheel to clear this message from the IPC. To prevent the message from returning on the next key cycle, press the settings button on the steering wheel, and in the menu, choose advanced settings> vehicle> tire mobility kit> 4 years. This should be performed even if the 4 years selection in this menu is already selected. Do not replace the tire mobility kit. Do not attempt any repairs at this time. Engineering is investigating, monitor OASIS for updates.
SSM 461532017-02-09. Service bulletin. SETTING THE CORRECT TIRE INFLATION PRESSURE IS AN IMPORTANT STEP IN THE PRE-DELIVERY PROCESS AND DURING ROUTINE MAINTENANCE INTERVALS. RECENT CUSTOMER CLINICS REVEALED THAT MOST EVERY VEHICLE IN THE CLINICS HAD THE TIRE PRESSURES SET INCORRECTLY. TIRE PRESSURES FROM THE FACTORY ARE NOT SET TO THE CORRECT SPECIFICATION. MAINTAINING THE CORRECT TIRE PRESSURE IS KEY TO THE RIDE CHARACTERISTICS OF THE VEHICLE AND AFFECTS RIDE QUALITY, HANDLING, LOAD CAPACITY AND TIRE WEAR. THE RECOMMENDED PRESSURE SETTINGS CAN BE FOUND ON THE TIRE INFORMATION LABEL IN THE DRIVER'S SIDE FRONT DOOR JAM. DO NOT USE THE TIRE PRESSURES LISTED ON THE SIDEWALL OF THE TIRES. MAINTAINING THE TIRE PRESSURE IS PART OF NORMAL MAINTENANCE. IT SHOULD BE RECHECKED MONTHLY, PER THE OWNER GUIDE AND DURING THE RECOMMENDED TIRE ROTATION INTERVALS.