RAM Promaster 2014–2021 — technical service bulletin
Bulletin S2123000040 · NHTSA communication 10223456 · issued May 26, 2021
Technical service bulletin
communication type
Visibility
component
2014–2021
model years
8
vehicle entries
Official summary
Wind Or Whistle Noise From Windshield
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.