In December 2020, Mazda filed an improvement campaign with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Other systems, covering the MAZDA3. The filing affects 43 vehicles manufactured between June 11, 2019 and October 14, 2019.
Overview
| MLIT filing number | 2106050 |
|---|---|
| Type | Improvement Campaign (manufacturer improvement measure / 改善対策) |
| Date filed | December 10, 2020 |
| Manufacturer(s) | Mazda |
| Component | Other systems |
| Production period | June 11, 2019 — October 14, 2019 |
| Vehicles affected | 43 units |
Filing in context
The Other systems is the most frequently cited component category in this archive, appearing in 3 of its 4,890 filings. This filing is one of 22 Mazda notifications from 2020 in this archive. For scale, 4,195 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 4 months.
Issue
The Smart Brake Support (SBS) control program in the vehicle control computer is incorrect. As a result, the system may fail to correctly recognize vehicles stopped on the shoulder of an S-curve or large road signs. This causes the system to issue an audible proximity warning and display a warning message on the instrument display despite no actual collision risk. In the worst case, the collision mitigation brake system activates, applying sudden braking.
Corrective action
On all vehicles, the SBS control program in the vehicle control computer is reprogrammed with the corrected/updated software. On vehicles where the SBS activation setting specification changes as a result, the owner's manual is updated and the instrument cluster program is also reprogrammed at the same time.
Affected models & chassis ranges
This filing lists 3 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| 3DA-BP8P | ＭＡＺＤＡ３ | BP8P-101639 — BP8P-106460 |
| 5BA-BPFP | ＭＡＺＤＡ３ | BPFP-100420 — BPFP-107339 |
| 6BA-BP5P | ＭＡＺＤＡ３ | BP5P-101514 — BP5P-106282 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
車両制御コンピュータにおいて、スマート・ブレーキ・サポート（ＳＢＳ）の制御プログラムが不適切なため、Ｓ字路の路肩に停車した車両や大きな道路標識などを正しく認識できないことがある。そのため、衝突の可能性がないにもかかわらず障害物との接近を知らせる警報音が鳴り、ディスプレイに警告表示が出て、最悪の場合、衝突被害軽減ブレーキが作動し、急制動がかかるおそれがある。
改善措置
全車両、車両制御コンピュータのＳＢＳ制御プログラムを対策プログラムに修正する。なお、一部の車両はＳＢＳ作動設定の仕様が変更になるため、取扱説明書の変更、メータのプログラム変更を同時に実施する。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3008907
Related recalls
Same manufacturer, close in filing date
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Open recall detail →Engine Control Unit — affects 10 vehicles.
Open recall detail →Engine Control Unit — affects 22 vehicles.
Open recall detail →Computer (Control Unit) — affects 5,000 vehicles.
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Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
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Open recall detail →Computer (Engine Control) — affects 17,367 vehicles.
Open recall detail →Computer (Engine Control) — affects 17,367 vehicles.
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Open recall detail →Rearview Mirror — affects 115 vehicles.
Open recall detail →