In September 2018, Lexus filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer, covering the LC500h. The filing affects 1,434 vehicles manufactured between December 14, 2016 and July 31, 2018.
Overview
| MLIT filing number | 1143280 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | September 5, 2018 |
| Manufacturer(s) | Lexus |
| Component | Computer |
| Production period | December 14, 2016 — July 31, 2018 |
| Vehicles affected | 1,434 units |
Filing in context
The Computer is the most frequently cited component category in this archive, appearing in 42 of its 4,890 filings. This filing is one of 8 Lexus notifications from 2018 in this archive. For scale, 2,601 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 1 year and 7 months.
Defect
The hybrid system computer contains an improperly designed control program. When the accelerator pedal is depressed heavily during high-speed driving, the computer may fail to complete its shift processing within the specified time. The computer then detects this as an abnormality, illuminates a warning light, and shuts down the hybrid system, leaving the vehicle inoperable.
Corrective action
On all vehicles, reprogram the hybrid system computer with the corrected software.
Affected models & chassis ranges
This filing lists 1 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 |
|---|---|---|
| DAA-GWZ100 | ＬＣ５００ｈ | GWZ100-0001027 — GWZ100-0002504 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
ハイブリッドシステムコンピュータにおいて、制御ソフトが不適切なため、高速走行中にアクセルペダルを大きく踏み込む操作をした際、コンピュータが規定時間内に変速処理を終了出来ないことがある。そのため、当該コンピュータが異常と判定して警告灯が点灯するとともにハイブリッドシステムが停止し、走行不能となるおそれがある。
改善措置
全車両、ハイブリッドシステムコンピュータのソフトを対策仕様に修正する。
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=3004335
Related recalls
Same manufacturer, same component
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