丰田召回30,978辆RAV4插电混动：电机控制软件缺陷可致高速行驶中失去驱动力
丰田汽车北美制造公司（Toyota Motor Engineering & Manufacturing）10月7日向美国国家公路交通安全管理局（National Highway Traffic Safety Administration，NHTSA）提交安全召回报告（编号26V659），召回2026款 RAV4 Plug-in Hybrid 插电式混合动力车共30,978辆：这些车辆的电机发电机电子控制单元（MG-ECU）软件在某些情形下可能无法正确完成电机初始化，导致高速行驶所需的电机控制模式不可用，车辆可能转入失效安全模式或熄火、在高速行驶中失去驱动力，增加碰撞风险。涉事车辆生产日期为2025年7月22日至2026年8月19日，装有涉事软件的 MG-ECU 覆盖全部30,978辆。
按报告说明，初始化失败主要发生在后电机发电机上：当车辆加速到需要高速控制模式时，仪表警告灯会亮起，插电混动系统或转入仅前轮驱动、速度受限的失效安全模式，或直接熄火。涉事部件为混动电机控制逆变器总成（部件号 G92A0-42460），供应商为日本电装公司（Denso Corporation）。其他在美国销售的丰田与雷克萨斯车型或未装 MG-ECU、或所装软件不同，不在此次召回之列。
丰田的调查始于2026年6月至8月日本市场的一份现场报告：有车辆行驶中警告灯亮起、只能以前轮驱动限速行驶。经销商检查与车辆数据分析显示，后电机发电机从低速控制模式切换到高速控制模式时出现通信故障；反复的台架初始化测试确认，在特定启动条件下，初始化过程可能失败。8月至9月，丰田又用取消高速控制模式的软件对使用同一控制程序的前电机做了整车测试，确认系统可能转入失效安全模式或熄火。10月1日，丰田决定实施自愿安全召回。丰田表示，截至9月30日，其在美国收到38份可能与此问题相关的现场技术报告与58项保修索赔；报告未提及与此问题相关的碰撞或伤亡。
补救方面，经销商将为涉事车辆免费更新 MG-ECU 软件。经销商已于10月7日接到通知，车主通知定于11月22日至12月6日发出。车主可致电丰田客服1-800-331-4331查询，丰田内部召回编号为26TA22，也可在 NHTSA 召回查询页面输入车辆识别号（VIN）核对车辆是否在召回之列，或致电 NHTSA 车辆安全热线1-888-327-4236。
（来源：美国国家公路交通安全管理局）
Toyota Recalls 30,978 RAV4 Plug-in Hybrids: Motor Control Software Defect Can Cause Loss of Drive Power at Higher Speeds
Toyota Motor Engineering & Manufacturing submitted a safety recall report (campaign 26V659) to the National Highway Traffic Safety Administration (NHTSA) on October 7, recalling 30,978 model-year 2026 RAV4 Plug-in Hybrid vehicles: the software in their motor generator electronic control unit (MG-ECU) may not complete the motor initialization process correctly in some cases, leaving the motor control mode used for higher speeds unavailable. When the vehicle reaches a speed requiring that mode, warning lights will illuminate and the plug-in hybrid system will either transition to a fail-safe driving mode or shut down, causing a loss of motive power at higher speed and increasing the risk of a crash. The affected vehicles were produced from July 22, 2025 through August 19, 2026, and all 30,978 carry an MG-ECU with the software in question.
According to the report, the initialization failure centers on the rear motor generator: bench testing of the initialization sequence showed that under certain startup conditions it could fail, so when the higher-speed control mode is requested, the vehicle transitions to a fail-safe mode with front-wheel drive only and limited speed, or shuts down. The involved component is the hybrid motor control inverter assembly (part number G92A0-42460), supplied by Denso Corporation of Japan. Other Toyota and Lexus vehicles sold in the United States are not equipped with an MG-ECU, or have one with different software, and are not part of this recall.
Toyota's investigation began with a field report from the Japanese market between June and August 2026, in which warning lights illuminated while the vehicle was being driven and the vehicle could only be operated in front-wheel drive at limited speed. Dealer inspection and vehicle data identified a communication malfunction when the rear motor generator transitioned from the lower-speed to the higher-speed control mode. From August to September, Toyota ran additional vehicle testing on the front motor generators, which use the same control program, confirming the system could enter fail-safe mode or shut down. On October 1, Toyota decided to conduct a voluntary safety recall. As of September 30, Toyota had identified 38 field technical reports and 58 warranty claims from U.S. sources that relate or may relate to the condition; the report lists no crashes or injuries tied to the issue.
For the remedy, dealers will update the MG-ECU software free of charge. Dealers were notified on October 7, 2026, and owner notifications are scheduled from November 22 through December 6, 2026. Owners may contact Toyota customer service at 1-800-331-4331; Toyota's number for this recall is 26TA22. Owners can also check their vehicle identification number (VIN) on NHTSA's recall lookup page, or call the NHTSA Vehicle Safety Hotline at 1-888-327-4236.
(Source: National Highway Traffic Safety Administration)
来源：美国国家公路交通安全管理局
发布：GSM·美国（发布链接）
图片来源：图：2026款丰田 RAV4 PHEV GR Sport 原型车（资料图）。TTTNIS 摄，CC0，经 Wikimedia Commons。 / Photo: A 2026 Toyota RAV4 PHEV GR Sport prototype (file photo). Photo by TTTNIS, CC0, via Wikimedia Commons.
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