MLIT Statutory Recall · Japan

Recall 1155541 — Computer (Power Transmission)

Filed October 31, 2024 · Mazda

Overview

MLIT filing number1155541
TypeStatutory Recall (government-mandated recall)
Date filedOctober 31, 2024
Manufacturer(s)Mazda
ComponentComputer (Power Transmission)
Production periodJuly 2022 — August 27, 2024
Vehicles affected12,514 units

Defect

In the transmission control computer of mild hybrid vehicles, an incorrect clutch control program causes the engagement timing of the clutch connecting the motor and engine to shift during EV driving when the stopped engine is restarted. As a result, the piston may not be at the correct stop position required for restart, and the engine may fail to restart.

Corrective action

On all vehicles, reprogram both the transmission control computer and the engine control computer with the corrected/updated software, then perform transmission initialization learning.

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)ModelChassis ranges
3CA-KH3R3P CX-60 KH3R3P-100013 — KH3R3P-113761

Original Japanese (MLIT source text)

Show the original Japanese filing text

状況

①マイルドハイブリッド車のトランスミッション制御コンピュータにおいて、クラッチ制御が不適切なため、モータによるEV走行中に停止したエンジンを再始動する際、モータとエンジンを繋ぐクラッチの締結タイミングがずれることがある。そのため、エンジンを再始動するためのピストン停止位置からずれて再始動できないおそれがある。

改善措置

①②全車両、トランスミッション制御コンピュータとエンジン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し、トランスミッションの初期学習を実施する。

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=3009874

Check your own vehicle: to see whether this filing affects a specific chassis number — and find every other recall for it — use the chassis lookup on the home page.

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