RAM 1500 2019–2020 — technical service bulletin
Bulletin S2108000022 · NHTSA communication 10187075 · issued Jan 22, 2021
Technical service bulletin
communication type
Electrical System
component
2019–2020
model years
8
vehicle entries
Official summary
Service Trailer Brake Warning Message Displayed On The Cluster
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.