RAM 2500 2020–2021 — technical service bulletin
Bulletin S2124000001 · NHTSA communication 10220518 · issued Feb 16, 2021
Technical service bulletin
communication type
Visibility
component
2020–2021
model years
2
vehicle entries
Official summary
High Speed Blower Position Inoperable When Using Plow Controls.
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.