This manual covers the Lexus RX450h, produced for the 2015-2017 model years. The RX450h is a premium mid-size luxury SUV renowned for its advanced hybrid powertrain, offering excellent fuel economy and a refined driving experience. It competes in a segment known for comfort and reliability, often distinguished by its sophisticated hybrid technology, spacious interior, and comprehensive safety features. This vehicle combines a 3.5L V6 engine with Lexus Hybrid Drive, delivering a combined 308 horsepower through an electronically controlled continuously variable transmission and an all-wheel-drive system.

This Electrical Wiring Diagram (EWD) manual provides comprehensive coverage of all electrical systems within the Lexus RX450h. It includes detailed schematics, component locations, connector views, pinouts, and fuse/relay information for systems such as engine and hybrid control, chassis electronics, body electrical, climate control, audio, safety, and driver assistance features. The manual is intended for professional technicians and advanced enthusiasts, offering the technical depth required for accurate diagnosis and repair of complex electrical circuits and hybrid system components. It serves as an essential resource for maintaining the optimal performance and integrity of your vehicle's electrical architecture.