Mazda CX-30 2019–2021 — technical service bulletin
Bulletin SA-003-21a · NHTSA communication 10191537 · issued Apr 27, 2021
Technical service bulletin
communication type
Equipment
component
2019–2021
model years
5
vehicle entries
Official summary
Some customers may complain about the following symptoms occurring when driving without anything ahead (no metallic object reflects the radar wave such as a vehicle ahead, an oncoming vehicle, a road sign or a guard rail). While using Mazda Radar Cruise Control (MRCC), the MRCC cancels by itself. When MRCC is not in use, Safety and Driver Support Systems Temporarily Disabled. Front Radar Obscured. message appears in the instrument cluster / Remove dirt on the front radar sensor message appears in the center display and related i-ACTIVSENSE functions stop working.
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.