Honda Accord 2017–2021 — technical service bulletin
Bulletin A21080A · NHTSA communication 10244299 · issued Oct 17, 2023
Technical service bulletin
communication type
Vehicle Speed Control
component
2017–2021
model years
15
vehicle entries
Official summary
Service News - If an Adaptive Cruise Control System Problem comes back on when the vehicle is driven in freezing conditions, inform the customer it is likely due to snow or ice buildup on the radar. Advise the customer 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.