Overview
| MLIT filing number | 1141390 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 15, 2017 |
| Manufacturer(s) | Toyota |
| Component | Parking Brake |
| Production period | December 2016 — October 10, 2017 |
| Vehicles affected | 22,223 units |
Defect
The broken-wire detection software in the electric parking brake control unit is inadequate. If the parking brake is not applied or released for an extended period, an oxide film may form on the parking brake motor contacts, increasing contact resistance to a level that the control unit incorrectly interprets as a broken wire. As a result, the warning lamp illuminates and the electric parking brake may fail to engage.
Corrective action
On all vehicles, reprogram the control software with the corrected version.
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 |
|---|---|---|
| DBA-NGX50 | Ｃ－ＨＲ | NGX50-2000024 — NGX50-2022558 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
電動パーキングブレーキにおいて、ブレーキ制御コンピュータの断線検出プログラムが不適切なため、作動または解除操作を長期間行わないと当該パーキングブレーキ用モータ接点に生成された酸化皮膜により接触抵抗が増加して、断線と判定することがある。そのため、警告灯が点灯して、電動パーキングブレーキが作動しないおそれがある。
改善措置
全車両、制御プログラムを修正する。
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=3004132