In October 2023, Mazda filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer (electric motor), covering the CX-60. The filing affects 27,699 vehicles manufactured between October 19, 2022 and June 19, 2023.
Overview
| MLIT filing number | 1153843 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | October 26, 2023 |
| Manufacturer(s) | Mazda |
| Component | Computer (electric motor) |
| Production period | October 19, 2022 — June 19, 2023 |
| Vehicles affected | 27,699 units |
Filing in context
This is the only filing in the archive that cites the Computer (electric motor) as the affected component. This filing is one of 22 Mazda notifications from 2023 in this archive. For scale, 1,044 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 8 months.
Defect
The electric drive control computer uses improper activation conditions for its failsafe function. When a cooling abnormality occurs in the plug-in hybrid inverter, restricting motor operation may still allow the inverter to overheat. If the vehicle continues to be used in this state, the engine warning light and hybrid system warning light illuminate. When the failsafe activates and shuts down motor operation, engine operation is simultaneously stopped, and the vehicle may become inoperable.
Corrective action
(3) On all vehicles, reprogram the electric drive control computer with the corrected/updated software. Additionally, update the engine control computer software to a version compatible with the corrected electric drive control computer software.
Affected models & chassis ranges
This filing lists 1 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 |
|---|---|---|
| 5LA-KH5S3P | ＣＸ－６０ | KH5S3P-100004 — KH5S3P-100992 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
（３）電気駆動制御コンピュータにおいて、フェイルセーフの作動条件が不適切なため、プラグインハイブリッド用インバータの冷却異常が発生した場合にモータの運転を制限しても、インバータが過熱することがある。そのため、そのまま使用を続けた場合、エンジン警告灯やハイブリッドシステム警告灯が点灯し、フェイルセーフが作動してモータの運転を停止する際、同時にエンジンの運転も停止し、走行できなくなるおそれがある。
改善措置
（３）全車両、電気駆動制御コンピュータの制御プログラムを対策プログラムに修正する。併せてエンジン制御コンピュータの制御プログラムを、電気駆動制御コンピュータの対策プログラムに適応したプログラムに更新する。
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=3009494
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Open recall detail →