RAM 1500 2021 — technical service bulletin
Bulletin S2111000001 · NHTSA communication 10220571 · issued Feb 27, 2021
Technical service bulletin
communication type
Back Over Prevention
component
2021
model years
1
vehicle entries
Official summary
Customer complains of a brief metallic ticking/rattling/ringing noise after a cold start-up, that can be heard while standing outside the vehicle, resonating from the front wheel well areas. If the noise is present, it is normally heard at idle and the frequency of the noise will follow engine speed.
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.