Dodge Sprinter 2004–2006 — technical service bulletin
Bulletin T21 Rev3 · NHTSA communication 10176559 · issued May 21, 2020
Technical service bulletin
communication type
Equipment
component
2004–2006
model years
5
vehicle entries
Official summary
Emissions Recall T21 Reprogram Engine Control Unit
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.