Toyota has encountered a software issue affecting its 2026 plug-in hybrid RAV4 model, potentially causing the vehicle's propulsion system to malfunction or shut down while in motion, resulting in reduced power.
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A security campaign has been initiated by the National Highway Traffic Safety Administration, impacting 30,978 vehicles registered in the United States.
Chinese electric vehicle manufacturer BYD has filed a patent application for a system designed to cool immersion batteries, a crucial component in many electric vehicles. The proposed system aims to improve the performance and lifespan of immersion batteries by regulating their temperature. This innovation could potentially enhance the overall efficiency and reliability of electric vehicles.
A potential failure in the electronic management system of a hybrid vehicle could have significant consequences if it occurs while the driver is traveling on a highway.
A technical limitation exists within the electronic control unit of the engine generator, which can lead to a software failure under specific circumstances. This failure may result in the omission of a critical operational mode, thereby preventing the system from functioning at higher speeds.
In the event of a malfunction, the vehicle's advanced safety system can initiate a warning mode, illuminating warning lights and restricting speed and operation to the front wheels. In specific situations, the system may also engage a protective shutdown, resulting in a loss of power while the vehicle is in motion.
A probe was initiated following a notification from Japan, where a vehicle had begun displaying warning messages while in operation and was subsequently restricted from further use.
A technical review revealed a communication issue that arose when the rear engine generator transitioned between control modes optimized for varying speeds.
As of September 30, 2026, Toyota in the United States had documented a total of 38 field technical reports and 58 warranty claims potentially linked to a specific condition.
Toyota will address the issue by updating the software of the affected control unit at no cost to the vehicle owners. This update will be performed at authorized Toyota dealerships. Additionally, owners who previously incurred costs related to a repair for the same issue may be eligible for a refund, and they are advised to contact the dealership for more information on the refund process.
The notification process to property owners is set to commence on November 22, 2026, with all necessary communications expected to be finalized by December 6.
Toyota owners of 2026 plug-in hybrid RAV4 models are advised to verify their vehicle's identification number through the National Highway Traffic Safety Administration's official search engine. Alternatively, they can contact Toyota's customer service at 1-800-331-4331 and reference campaign number 26TA22. The safety recall, designated by the NHTSA as 26V659, is also available for further information.
The U.S. agency provides a dedicated public hotline, 1-888-327-4236, for individuals to seek information regarding vehicle withdrawals and safety defects.
