Ford Transit 2015–2019 — technical service bulletin
Bulletin 21N05 · NHTSA communication 10201091 · issued Aug 31, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2019
model years
5
vehicle entries
Official summary
This program extends the warranty coverage of the rear nitrogen oxides (NOx) sensor for twelve months of service, beginning on the date the powertrain control module (PCM) is reprogrammed under Emissions Recall 21 E01. This program only applies if a rear NOx sensor fault is detected an it is related to a diagnostic trouble codes (DTC) P229F identified after 21E01 has been performed.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.