TSB 21M01 — Ford Service bulletin
21M01 is a service bulletin on file with NHTSA for 2 Ford models, 2013–2015 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Customer Satisfaction Program 21M01 Certain 2013-2016 Model Year F-250-F-550 Vehicles Equipped with a 6.7L Diesel Engine - Reductant Heater and Sender Assembly Repair
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 21M01 names
| Vehicle | Model years |
|---|---|
| Ford F-250 | 2013, 2014, 2015 |
| Ford F-350 | 2013, 2014, 2015 |
Every document filed under 21M01
| Document ID | Filed | Type |
|---|---|---|
| 21M01 | January 11, 2022 | Service bulletin |
What 21M01 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 21M01?
21M01 is a service bulletin filed with NHTSA by Ford, covering 2 Ford models across the 2013–2015 model years. NHTSA's summary reads: Customer Satisfaction Program 21M01 Certain 2013-2016 Model Year F-250-F-550 Vehicles Equipped with a 6.7L Diesel Engine - Reductant Heater and Sender Assembly Repair
Which vehicles does 21M01 cover?
NHTSA's file names Ford F-250 (2013–2015); Ford F-350 (2013–2015). 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 21M01 a recall, and is the repair free?
No. 21M01 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 21M01?
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 21M01, its date, and NHTSA's own summary from the public file.
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 21M01. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.