Service bulletins for the 2021 Mazda Mazda3
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
634 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Throttle and cruise control are shown. Show all
| SA-003-21b | 2021-06-02. Service bulletin. FORWARD COLLISION AVOIDANCE; VEHICLE SPEED CONTROL; EQUIPMENT ADAPTIVE/MOBILITY. 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. NOTE: The customer may misinterpret MRCC cancellation as unintended braking. MRCC cancellation feels the same as the steering wheel cancel button being pressed or the brake pedal being tapped. |
|---|---|
| SA-003-21 | 2021-02-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; VEHICLE SPEED CONTROL. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.