In December 2016, UD Trucks filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Primary Brake System, covering the Quon. The filing affects 16,340 vehicles manufactured between January 10, 2005 and August 2015.
Overview
| MLIT filing number | 1139290 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | December 1, 2016 |
| Manufacturer(s) | UD Trucks |
| Component | Primary Brake System |
| Production period | January 10, 2005 — August 2015 |
| Vehicles affected | 16,340 units |
Filing in context
The Primary Brake System is the most frequently cited component category in this archive, appearing in 3 of its 4,890 filings. This filing is one of 9 UD Trucks notifications from 2016 in this archive. For scale, 1,358 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 10 years and 7 months.
Defect
On large trucks, the rear brake chamber has insufficient strength. Vibration frequencies generated when traveling at 80 km/h over highway rumble strips may cause cracks to develop in the brake chamber. If the vehicle continues to be used in this condition, the cracks will propagate and, in the worst case, the chamber may separate.
Corrective action
On all vehicles, the rear brake chambers will be inspected. If an unmodified part is found installed, the brake chamber assembly will be replaced with a corrected part.
Affected models & chassis ranges
This filing lists 75 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 |
|---|---|---|
| ADG-CG2YA | QUON | CG2YA-00001 — CG2YA-30025 |
| ADG-CG2ZA | QUON | CG2ZA-00004 — CG2ZA-30043 |
| ADG-CG4XA | QUON | CG4XA-00001 — CG4XA-30020 |
| ADG-CG4XL | QUON | CG4XL-00001 — CG4XL-30002 |
| ADG-CG4YA | QUON | CG4YA-00001 — CG4YA-30065 |
| ADG-CG4YA改 | QUON | CG4YA-00001 — CG4YA-30065 |
| ADG-CG4YE | QUON | CG4YE-00001 — CG4YE-30013 |
| ADG-CG4YL | QUON | CG4YL-00001 — CG4YL-30010 |
| ADG-CG4ZA | QUON | CG4ZA-00009 — CG4ZA-32187 |
| ADG-CG4ZA改 | QUON | CG4ZA-00009 — CG4ZA-32187 |
| ADG-CG4ZE | QUON | CG4ZE-00005 — CG4ZE-30353 |
| ADG-CG4ZE改 | QUON | CG4ZE-00005 — CG4ZE-30353 |
| ADG-CG4ZL | QUON | CG4ZL-00002 — CG4ZL-30163 |
| ADG-CG4ZL改 | QUON | CG4ZL-00002 — CG4ZL-30163 |
| ADG-CG4ZM | QUON | CG4ZM-00001 — CG4ZM-30030 |
| ADG-CG4ZM改 | QUON | CG4ZM-00001 — CG4ZM-30030 |
| ADG-CX2YA | QUON | CX2YA-00001 — CX2YA-30013 |
| ADG-CX2YA改 | QUON | CX2YA-00001 — CX2YA-30013 |
| ADG-CX4YA | QUON | CX4YA-00002 — CX4YA-30161 |
| ADG-CX4YA改 | QUON | CX4YA-00002 — CX4YA-30161 |
| ADG-CX4YL | QUON | CX4YL-00001 — CX4YL-30069 |
| ADG-CX4YL改 | QUON | CX4YL-00001 — CX4YL-30069 |
| LDG-CG5XA | QUON | CG5XA-00101 — CG5XA-00103 |
| LDG-CG5YA | QUON | CG5YA-00101 — CG5YA-30025 |
| LDG-CG5YL | QUON | CG5YL-00101 — CG5YL-30007 |
| LDG-CG5ZA | QUON | CG5ZA-00102 — CG5ZA-32269 |
| LDG-CG5ZE | QUON | CG5ZE-00102 — CG5ZE-30170 |
| LDG-CG5ZL | QUON | CG5ZL-00101 — CG5ZL-30103 |
| LDG-CX5YA | QUON | CX5YA-00101 — CX5YA-30044 |
| LDG-CX5YA改 | QUON | CX5YA-00101 — CX5YA-30044 |
| LDG-CX5YL | QUON | CX5YL-00101 — CX5YL-30034 |
| LDG-CX5YL改 | QUON | CX5YL-00101 — CX5YL-30034 |
| LKG-CG5YA | QUON | CG5YA-00101 — CG5YA-30025 |
| LKG-CG5YE | QUON | CG5YE-00101 — CG5YE-10014 |
| LKG-CG5ZA | QUON | CG5ZA-00102 — CG5ZA-32269 |
| LKG-CG5ZA改 | QUON | CG5ZA-00102 — CG5ZA-32269 |
| LKG-CG5ZE | QUON | CG5ZE-00102 — CG5ZE-30170 |
| LKG-CG5ZL | QUON | CG5ZL-00101 — CG5ZL-30103 |
| LKG-CG5ZM | QUON | CG5ZM-00101 — CG5ZM-30045 |
| LKG-CX5YA | QUON | CX5YA-00101 — CX5YA-30044 |
| LKG-CX5YA改 | QUON | CX5YA-00101 — CX5YA-30044 |
| PKG-CG4XL | QUON | CG4XL-00001 — CG4XL-30002 |
| PKG-CG4YA | QUON | CG4YA-00001 — CG4YA-30065 |
| PKG-CG4YA改 | QUON | CG4YA-00001 — CG4YA-30065 |
| PKG-CG4YE | QUON | CG4YE-00001 — CG4YE-30013 |
| PKG-CG4YE改 | QUON | CG4YE-00001 — CG4YE-30013 |
| PKG-CG4YL改 | QUON | CG4YL-00001 — CG4YL-30010 |
| PKG-CG4ZA | QUON | CG4ZA-00009 — CG4ZA-32187 |
| PKG-CG4ZA改 | QUON | CG4ZA-00009 — CG4ZA-32187 |
| PKG-CG4ZE | QUON | CG4ZE-00005 — CG4ZE-30353 |
| PKG-CG4ZL | QUON | CG4ZL-00002 — CG4ZL-30163 |
| PKG-CG4ZM | QUON | CG4ZM-00001 — CG4ZM-30030 |
| PKG-CG4ZM改 | QUON | CG4ZM-00001 — CG4ZM-30030 |
| PKG-CX4YA | QUON | CX4YA-00002 — CX4YA-30161 |
| PKG-CX4YA改 | QUON | CX4YA-00002 — CX4YA-30161 |
| QDG-CG5ZA | QUON | CG5ZA-00102 — CG5ZA-32269 |
| QDG-CG5ZE | QUON | CG5ZE-00102 — CG5ZE-30170 |
| QDG-CX5YA | QUON | CX5YA-00101 — CX5YA-30044 |
| QDG-CX5YL | QUON | CX5YL-00101 — CX5YL-30034 |
| QDG-CX5YL改 | QUON | CX5YL-00101 — CX5YL-30034 |
| QKG-CG5YA | QUON | CG5YA-00101 — CG5YA-30025 |
| QKG-CG5YE | QUON | CG5YE-00101 — CG5YE-10014 |
| QKG-CG5YL | QUON | CG5YL-00101 — CG5YL-30007 |
| QKG-CG5ZA | QUON | CG5ZA-00102 — CG5ZA-32269 |
| QKG-CG5ZA改 | QUON | CG5ZA-00102 — CG5ZA-32269 |
| QKG-CG5ZE | QUON | CG5ZE-00102 — CG5ZE-30170 |
| QKG-CG5ZL | QUON | CG5ZL-00101 — CG5ZL-30103 |
| QKG-CG5ZM | QUON | CG5ZM-00101 — CG5ZM-30045 |
| QKG-CX5YA | QUON | CX5YA-00101 — CX5YA-30044 |
| QKG-CX5YA改 | QUON | CX5YA-00101 — CX5YA-30044 |
| QKG-CX5YL | QUON | CX5YL-00101 — CX5YL-30034 |
| QKG-CX5YL改 | QUON | CX5YL-00101 — CX5YL-30034 |
| QPG-CG5ZA | QUON | CG5ZA-00102 — CG5ZA-32269 |
| QPG-CG5ZE | QUON | CG5ZE-00102 — CG5ZE-30170 |
| QPG-CG5ZL | QUON | CG5ZL-00101 — CG5ZL-30103 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型トラックの後輪制動装置において、ブレーキチャンバーの強度が不足しているため、高速道路における路側帯との区分線（バイブラライン）上を時速８０ｋｍ／ｈで走行した際の振動周波数によってブレーキチャンバーに亀裂が生じることがある。そのため、そのままの状態で使用を続けると亀裂が進行し、最悪の場合、当該チャンバーが分離するおそれがある。
改善措置
全車両、後輪のブレーキチャンバーを確認し、未対策品が装着されている場合には、ブレーキチャンバーアッセンブリ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=3003896
Related recalls
Same manufacturer, close in filing date
Other UD Trucks filings closest to this one by filing date.
Other (frame/body) — affects 346 vehicles.
Open recall detail →Body — affects 4,199 vehicles.
Open recall detail →Computer (Engine) — affects 110,657 vehicles.
Open recall detail →Other (Body / Frame) — affects 378 vehicles.
Open recall detail →Other — affects 12,565 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Other — affects 526 vehicles.
Open recall detail →Other (frame/body) — affects 295 vehicles.
Open recall detail →Body Structure (Roof Rail Rivet Cover) — affects 1,697 vehicles.
Open recall detail →Other Equipment — affects 34,123 vehicles.
Open recall detail →Other (Frame/Body) — affects 270 vehicles.
Open recall detail →All UD Trucks recalls · All 2016 recalls · Recall Archive home