Overview
| MLIT filing number | 2101810 |
|---|---|
| Type | Improvement Campaign (manufacturer improvement measure / 改善対策) |
| Date filed | July 3, 2001 |
| Manufacturer(s) | Toyota |
| Component | Service brake — general |
| Production period | October 13, 2000 — May 15, 2001 |
| Vehicles affected | 15,395 units |
Issue
In the brake system, the reservoir tank vent hole is undersized. This causes negative pressure to develop inside the master cylinder reservoir tank in cold conditions. When the brake is applied under these conditions, small amounts of air may enter through the rubber seals inside the cylinder. Continued use causes the driver to feel reduced response during brake pedal operation, accompanied by abnormal noise. In the worst case, the brake warning lamp illuminates and brake pedal travel increases.
Corrective action
On all vehicles, bleed the brake hydraulic system and replace the reservoir tank cap with a corrected part that prevents negative pressure from developing.
Affected models & chassis ranges
This filing lists 4 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 |
|---|---|---|
| TA-ACU20W | クルーガーＶ | ACU20-0001013 — ACU20-0013445 |
| TA-ACU25W | クルーガーＶ | ACU25-0001006 — ACU25-0007144 |
| TA-MCU20W | クルーガーＶ | MCU20-0001014 — MCU20-0016637 |
| TA-MCU25W | クルーガーＶ | MCU25-0001021 — MCU25-0027571 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
制動装置において、リザーバタンクの通気穴が小さすぎるため、冷間時にブレーキマスタ ーシリンダのリザーバータンク内が負圧状態となることから、この状態でブレーキ操作を 行うと、当該シリンダ内のゴム製シールから微量の空気が侵入することがあり、そのまま の状態で使用を続けると、ブレーキペダル操作時に操作力が伝わらない感じがするととも に異音がし、最悪の場合、ブレーキ警告灯が点灯し、ブレーキペダルの踏み込み量が増大 するおそれがある。
改善措置
全車両、ブレーキ油圧系統の空気抜きを行い、リザーバタンクのキャップを負圧が生じな い対策品と交換する。
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=3008592