Acura RDX 2019–2021 — technical service bulletin
Bulletin B20-053 · NHTSA communication 10185045 · issued Dec 24, 2020
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
3
vehicle entries
Official summary
Service Bulletin - The MIL is flashing with loss of power. Humid air within the intake tract may condense and accumulate excessive moisture during steady driving.
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.