Overview
| MLIT filing number | 1139372 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 29, 2016 |
| Manufacturer(s) | Hino |
| Component | Computer |
| Production period | November 13, 2015 — October 13, 2016 |
| Vehicles affected | 36 units |
Defect
On large hybrid transit buses, an incorrect control program in the hybrid system ECU causes the following fault: when the vehicle decelerates to below a certain speed at low velocity, the stall-prevention function disengages the clutch, but the system subsequently fails to switch to motor drive, leaving the vehicle unable to accelerate.
Corrective action
On all vehicles, replace the hybrid ECU with a corrected part.
Affected models & chassis ranges
This filing lists 2 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 |
|---|---|---|
| QSG-HL2ANAP | BLUE RIBBON Hybrid | HL2ANA-40011 — HL2ANA-40041 |
| QSG-HL2ASAP | BLUE RIBBON Hybrid | HL2ASA-40011 — HL2ASA-40030 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型ハイブリッド路線バスにおいて、 ②ハイブリッドシステムの制御プログラムが不適切なため、低速で減速している状態で一定速度以下になった場合、エンスト防止機能が働きクラッチが切れるが、その後、モータ駆動に切り替わらず加速できないおそれがある。
改善措置
②全車両、ハイブリッドＥＣＵを対策品に交換する。
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=3003905