Acura RDX 2019–2021 — technical service bulletin
Bulletin B21080A · NHTSA communication 10200854 · issued Aug 31, 2021
Technical service bulletin
communication type
Forward Collision Avoidance
component
2019–2021
model years
3
vehicle entries
Official summary
ServiceNews Article - When returning the vehicle to the client, inform them that if the message Adaptive Cruise Control System Problem comes back on when the vehicle is driven in freezing conditions, it is likely because of snow or ice buildup on the radar. Advise the client of the following procedure to clean the front grille where the radar is located.
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.