In October 2012, UD Trucks filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer (Powertrain). The filing affects 6,662 vehicles manufactured between March 2010 and July 2012.
Overview
| MLIT filing number | 1130290 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | October 4, 2012 |
| Manufacturer(s) | UD Trucks |
| Component | Computer (Powertrain) |
| Production period | March 2010 — July 2012 |
| Vehicles affected | 6,662 units |
Filing in context
The Computer (Powertrain) is the most frequently cited component category in this archive, appearing in 15 of its 4,890 filings. This filing is one of 14 UD Trucks notifications from 2012 in this archive. For scale, 1,822 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 2 years and 4 months.
Defect
The control unit software for the automated mechanical transmission uses incorrect logic. With the accelerator pedal released during very slow vehicle movement, the control unit may initiate an automatic upshift. The upshift causes the engine speed to rise in order to compensate for insufficient engine torque, resulting in an unintended increase in vehicle speed.
Corrective action
On all vehicles, reprogram the automated mechanical transmission control unit.
Affected models & chassis ranges
This filing lists 52 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 |
|---|---|---|
| LDG-CD5YA | ― | CD5YA-00139 — CD5YA-00192 |
| LDG-CV5XA | ― | CV5XA-00105 — CV5XA-00144 |
| LDG-CV5XL | ― | CV5XL-00115 — CV5XL-00120 |
| LDG-CV5YL | ― | CV5YL-00121 |
| LDG-CW5XL | ― | CW5XL-00125 — CW5XL-00902 |
| LDG-CW5ZL | ― | CW5ZL-00101 |
| LKG-CD5YA | ― | CD5YA-00101 — CD5YA-00185 |
| LKG-CD5YL | ― | CD5YL-00105 — CD5YL-00256 |
| LKG-CD5ZA | ― | CD5ZA-00102 — CD5ZA-01572 |
| LKG-CD5ZE | ― | CD5ZE-00102 — CD5ZE-00203 |
| LKG-CD5ZL | ― | CD5ZL-00103 — CD5ZL-00291 |
| LKG-CG5YA | ― | CG5YA-00101 — CG5YA-00119 |
| LKG-CG5YE | ― | CG5YE-00101 |
| LKG-CG5ZA | ― | CG5ZA-00102 — CG5ZA-01736 |
| LKG-CG5ZE | ― | CG5ZE-00102 — CG5ZE-00289 |
| LKG-CG5ZL | ― | CG5ZL-00101 — CG5ZL-00187 |
| LKG-CG5ZM | ― | CG5ZM-00101 — CG5ZM-00119 |
| LKG-CV5YB | ― | CV5YB-00102 — CV5YB-00126 |
| LKG-CW5YL | ― | CW5YL-00104 — CW5YL-00503 |
| LKG-CW5ZA | ― | CW5ZA-00101 — CW5ZA-00208 |
| LKG-CW5ZL | ― | CW5ZL-00102 — CW5ZL-00342 |
| LKG-CX5YA | ― | CX5YA-00102 — CX5YA-00165 |
| LKG-GK5XAB | ― | GK5XA-00104 — GK5XA-01351 |
| LKG-GK5XAD | ― | GK5XA-00132 — GK5XA-01324 |
| LKG-GK5XAE | ― | GK5XA-00121 — GK5XA-01349 |
| LKG-GK5XAK | ― | GK5XA-00597 — GK5XA-01103 |
| LKG-GK6XAB | ― | GK6XA-00107 — GK6XA-00873 |
| LKG-GK6XAD | ― | GK6XA-00110 — GK6XA-00850 |
| LKG-GK6XAE | ― | GK6XA-00123 — GK6XA-00699 |
| QKG-CD5YA | ― | CD5YA-00186 — CD5YA-10011 |
| QKG-CD5YL | ― | CD5YL-00270 — CD5YL-10011 |
| QKG-CD5ZA | ― | CD5ZA-01141 — CD5ZA-10319 |
| QKG-CD5ZE | ― | CD5ZE-00204 — CD5ZE-10018 |
| QKG-CD5ZL | ― | CD5ZL-00265 — CD5ZL-10034 |
| QKG-CG5YA | ― | CG5YA-10001 — CG5YA-10002 |
| QKG-CG5YE | ― | CG5YE-00102 — CG5YE-10002 |
| QKG-CG5ZA | ― | CG5ZA-00869 — CG5ZA-10453 |
| QKG-CG5ZE | ― | CG5ZE-00172 — CG5ZE-10046 |
| QKG-CG5ZL | ― | CG5ZL-00183 — CG5ZL-10023 |
| QKG-CG5ZM | ― | CG5ZM-00120 — CG5ZM-10008 |
| QKG-CV5YB | ― | CV5YB-10001 — CV5YB-10002 |
| QKG-CW5YL | ― | CW5YL-00172 — CW5YL-10058 |
| QKG-CW5ZA | ― | CW5ZA-00196 — CW5ZA-10020 |
| QKG-CW5ZL | ― | CW5ZL-00314 — CW5ZL-10040 |
| QKG-CX5YA | ― | CX5YA-00101 — CX5YA-10010 |
| QKG-GK5XAB | ― | GK5XAB-00419 — GK5XAB-10288 |
| QKG-GK5XAD | ― | GK5XAD-10005 — GK5XAD-10282 |
| QKG-GK5XAE | ― | GK5XAE-10040 — GK5XAE-10238 |
| QKG-GK5XAK | ― | GK5XAK-01048 |
| QKG-GK6XAB | ― | GK6XAB-00106 — GK6XAB-10211 |
| QKG-GK6XAD | ― | GK6XAD-00625 — GK6XAD-10201 |
| QKG-GK6XAE | ― | GK6XAE-10036 — GK6XAE-10218 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
機械式自動変速機の制御ユニットのプログラムが不適切なため、アクセルペダルを踏んでおらず、かつ微速走行時に自動変速制御（シフトアップ）が開始されることがある。そのため、当該変速制御に伴い、エンジントルク不足を解消するためにエンジン回転が上昇することから、運転者が意図せず速度が増加するおそれがある。
改善措置
全車両、機械式自動変速機の制御ユニットのプログラムを書き換える。
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=3002882
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Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
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Open recall detail →All UD Trucks recalls · All 2012 recalls · Recall Archive home