Service bulletin SSM 46905

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)
Type	Service bulletin
NHTSA id	10127409
Published by NHTSA	2018-01-29
Manufacturer's number	SSM 46905
Manufacturer's date	2017-11-08
NHTSA component	TIRES; WHEELS

NHTSA's summary

Some 2015-2018 Explorer vehicles equipped with Hankook brand tires may exhibit chipping, cutting and/or unusual or even accelerated tread wear. If the tire side wall is marked as: 255/50R20 105H Ventus S1 Noble 2 contact Hankook Technical Service for possible pro-rated tire replacement. This may not be the result of improper alignment. For Hankook contact information refer to the Tire Warranty information located on FMCDealer.com.

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, Wheels

Vehicles listed
FORD EXPLORER	2015, 2016, 2017, 2018

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
22N01	2022-10-05. Service bulletin. Certain 2011-2017 Model Year Explorer Vehicles Rear Wheel Knuckle Replacement Ref 21S32 Submitting Owner Letter
SSM 48876	2020-07-07. Service bulletin. For 2013-2019 Ford Explorer vehicles that require rear wheel knuckle and bushing assembly repairs, dealers are advised to follow Workshop Manual (WSM) Procedures and use service parts recommended by Ford only. Ford has received reports of toe link failures after the installation of non-OEM cross-axial ball joints (aka bushings) in the rear wheel knuckle, and if service of the rear wheel knuckle and bushing assembly is required, the recommended repair is to replace the affected 5B758/9 as an assembly only. Refer to WSM, Section 204-02, and the Ford Service Parts Catalog as needed.
SSM 48821	2020-06-04. Service bulletin. For 2013-2019 Ford Explorer vehicles that require rear wheel knuckle and bushing assembly repairs, dealers are advised to follow Workshop Manual (WSM) Procedures and use service parts recommended by Ford only. Ford has received reports of toe link failures after the installation of non-OEM cross-axial ball joints in the rear wheel knuckle, and if service of the rear wheel knuckle and bushing assembly is required, the recommended repair is to replace the affected 5B758/9 assembly. Refer to WSM, Section 204-02, and the Ford Service Parts Catalog as needed.
SSM 47195	2018-05-21. Service bulletin. Some 2015-2018 Explorer vehicles equipped with Hankook brand tires may exhibit tread wear that is not the result of vehicle alignment concerns. For customer satisfaction, Hankook is offering pro-rated tire replacement for vehicles with less than 36,000 Miles. This program is managed by Hankook Tire America Corp. and not claimed under Ford new vehicle limited warranty. If the tire side wall is marked as: 255/50R20 105H Ventus S1 Noble 2, contact Hankook Technical Service for possible pro-rated tire replacement. Refer to FMCDealer.com Tire Page for details and Hankook contact information.
SSM 46153	2017-02-09. 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.