Overview
| MLIT filing number | 1151890 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | July 21, 2022 |
| Manufacturer(s) | Mazda, Suzuki |
| Component | Continuously Variable Transmission (CVT) |
| Production period | December 26, 2019 — June 16, 2022 |
| Vehicles affected | 63,108 units |
Defect
In the continuously variable transmission (CVT), an incorrect control program in the CVT controller may cause the steel belt to slip and generate wear debris during high-load kickdown operation. Continued use allows the wear debris to cause sticking in the hydraulic pressure control valve, resulting in insufficient hydraulic pressure. In the worst case, the vehicle may become inoperable.
Corrective action
Inspect the CVT on all vehicles; if belt slippage is determined to have occurred, replace the CVT. Reprogram the CVT controller with the corrected/updated software on all vehicles. If the CVT was not replaced at the time of the recall and belt slippage is subsequently confirmed, the CVT will be replaced at no charge.
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 |
|---|---|---|
| 4AA-MH55S | ワゴンR | MH55S-920001 — MH55S-924135 |
| 4AA-MR52S | ハスラー | MR52S-100112 — MR52S-301806 |
| 4AA-MS52S | FLAIR CROSSOVER | MS52S-100002 — MS52S-300111 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
無段変速機(CVT)において、CVTコントローラの制御プログラムが不適切なため、高負荷のキックダウン時等に、変速機構であるスチールベルトが滑り摩耗紛が発生する場合がある。そのままの状態で使用を続けると、摩耗紛による油圧調整弁の摺動不良が起こり油圧不良となることで、最悪の場合、走行不能に至るおそれがある。
改善措置
全車両、CVTを点検し、ベルト滑りがあると判断した場合は、CVTを交換する。また全車両、CVTコントローラを対策プログラムに書き換える。 なお、CVTを交換しなかった場合において、後日ベルト滑りがあると判断した場合は、CVTを無償交換する。
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=3005221
Related
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