TSB 22N01 — Ford Service bulletin

22N01 is a service bulletin on file with NHTSA for the Ford Explorer, 2011–2017 model years, filed and re-filed as 3 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. Certain 2011-2017 Model Year Explorer Vehicles Rear Wheel Knuckle Replacement REASON FOR THIS SUPPLEMENT Program Terms: added 21R01 and 21R02 REASON FOR PROVIDING A NO-COST, ONE-TIME REPAIR: added 21R01 and 21R02 OWNER NOTIFICATION MAILING SCHEDULE: added mailing schedule for…

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

3Documents filed
1Vehicle named
7Model years

Vehicles and model years 22N01 names

VehicleModel years
Ford Explorer 2011, 2012, 2013, 2014, 2015, 2016, 2017

Every document filed under 22N01

Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.

Document IDFiledType
22N01 S1 February 7, 2023 Service bulletin
22N01 March 31, 2022 Service bulletin
22N01 February 18, 2022 Service bulletin

What 22N01 covers

Suspension, Wheels & tires — the component vocabulary NHTSA files this communication under.

← All Ford Explorer TSB years TSB lookup by model

Questions buyers ask

What is TSB 22N01?

22N01 is a service bulletin filed with NHTSA by Ford, covering the Ford Explorer across the 2011–2017 model years. NHTSA's summary reads: Certain 2011-2017 Model Year Explorer Vehicles Rear Wheel Knuckle Replacement REASON FOR THIS SUPPLEMENT Program Terms: added 21R01 and 21R02 REASON FOR PROVIDING A NO-COST, ONE-TIME REPAIR: added 21R01 and 21R02 OWNER NOTIFICATION MAILING SCHEDULE: added mailing schedule for…

Which vehicles does 22N01 cover?

NHTSA's file names Ford Explorer (2011–2017). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB 22N01 a recall, and is the repair free?

No. 22N01 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of 22N01?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 22N01, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 22N01. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.