Overview
| MLIT filing number | 1116502 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | April 4, 2006 |
| Manufacturer(s) | Toyota |
| Component | Pressure Control / Transmission Unit |
| Production period | September 25, 1995 — October 17, 2005 |
| Vehicles affected | 3,167 units |
Defect
On ambulances, the rubber diaphragm inside the brake booster lacks sufficient heat resistance. Heat from the engine compartment causes the diaphragm to thermally degrade and develop cracks. Continued operation allows the cracks to propagate, impairing the booster's assist function and extending stopping distance.
Corrective action
On all vehicles, replace the brake booster with a corrected part.
Affected models & chassis ranges
This filing lists 20 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 |
|---|---|---|
| E-VCH16W | GRANVIA | VCH16-0001012 — VCH16-0023624 |
| GB-VCH32S | Ambulance | VCH32-0001002 — VCH32-0001728 |
| GB-VCH38S | Ambulance | VCH38-0001003 — VCH38-0001732; VCH38-0001733 — VCH38-0002534 |
| GE-VCH22S | Ambulance | VCH22-0001004 — VCH22-0002277 |
| GE-VCH28K | GRAND HIACE | VCH28-0001003 — VCH28-0001855 |
| GE-VCH28S | Ambulance | VCH28-0001004 — VCH28-0001856; VCH28-0001877 — VCH28-0002801 |
| GE-VCH32S | Ambulance | VCH32-0001002 — VCH32-0001728 |
| GE-VCH38S | Ambulance | VCH38-0001003 — VCH38-0001732; VCH38-0001733 — VCH38-0002534 |
| GF-VCH16W | GRANVIA | VCH16-0001012 — VCH16-0023624 |
| KD-KCH16W | GRANVIA | KCH16-0001004 — KCH16-0031435 |
| KD-KCH46G | HIACE REGIUS | KCH46-0001012 — KCH46-0019479 |
| KD-KCH46W | REGIUS | KCH46-0001012 — KCH46-0019479 |
| KG-LXH49V | Hiace Regius Van | LXH49-0001008 — LXH49-0003196 |
| KH-KCH16W | GRAND HIACE | KCH16-0001004 — KCH16-0031435 |
| KH-KCH46W | TOURING HIACE | KCH46-0001012 — KCH46-0019479 |
| TC-VCH22S | Ambulance | VCH22-0001004 — VCH22-0002277 |
| TC-VCH28K | GRANVIA | VCH28-0001003 — VCH28-0001855 |
| TC-VCH28S | Ambulance | VCH28-0001004 — VCH28-0001856; VCH28-0001877 — VCH28-0002801 |
| TC-VCH32S | Ambulance | VCH32-0001002 — VCH32-0001728 |
| TC-VCH38S | Ambulance | VCH38-0001003 — VCH38-0001732; VCH38-0001733 — VCH38-0002534 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
②救急車において、制動倍力装置（ブレーキブースタ）内にあるゴム製ダイヤフラムの耐熱性が不足しているため、原動機室内の熱影響により、当該ダイヤフラムが熱劣化して亀裂が発生することがある。そのため、そのまま使用を続けると亀裂が進行し、倍力作用が損なわれて制動停止距離が伸びるおそれがある。
改善措置
②全車両、ブレーキブースタを対策品と交換する。
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=3001357