Overview
| MLIT filing number | 2105870 |
|---|---|
| Type | Improvement Campaign (manufacturer improvement measure / 改善対策) |
| Date filed | December 19, 2019 |
| Manufacturer(s) | Mazda |
| Component | Other equipment |
| Production period | March 2019 — October 23, 2019 |
| Vehicles affected | 24,750 units |
Issue
The Smart Brake Support (SBS) control software in the vehicle control computer is incorrect, causing the system to fail to properly recognize vehicles stopped on the shoulder of an S-curve or large road signs. As a result, the system may issue an obstacle proximity warning and display a warning message even when no collision risk exists. In the worst case, the collision mitigation brake system may activate, causing sudden braking.
Corrective action
On all vehicles, update the SBS control software in the vehicle control computer to the corrected program. On certain vehicles where the SBS activation setting specification changes, the owner's manual will also be revised and the instrument cluster software will be updated at the same time.
Affected models & chassis ranges
This filing lists 5 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-100012 — BP8P-106622 |
| 3DA-DM8P | ＣＸ－３０ | DM8P-100006 — DM8P-101670 |
| 5BA-BPFP | ＭＡＺＤＡ３ | BPFP-100008 — BPFP-107571 |
| 5BA-DMEP | ＣＸ－３０ | DMEP-100011 — DMEP-101999 |
| 6BA-BP5P | ＭＡＺＤＡ３ | BP5P-100006 — BP5P-106927 |
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=3008896