12-volt Battery - The low-voltage battery that provides electrical power to accessories and the vehicle's computer, similar to the battery of a conventional vehicle.

Electronically-controlled Continuously Variable Transmission (ECVT) - A type of transmission with an infinite number of gear ratios that change depending on vehicle speed and engine rpm. As a result, the engine and the motors operate at their most efficient points regardless of the vehicle's speed. The ECVT in the transmission provides responsive and smooth performance. The advanced combination of electric motor/generators and planetary gear set are part of the ECVT, which has fewer parts than a conventional automatic transmission.

Engine - In a hybrid vehicle, the word "engine" refers to the gasoline engine, not an electric motor. The gasoline-powered engine is the primary power source for Lexus hybrid vehicles.

Hybrid Battery -Composed of sealed Nickel-Metal Hydride (NiMH) modules, the high voltage hybrid battery provides electric motor power during start-up, acceleration, uphill driving, and reverse. It also stores energy captured during regenerative braking. The hybrid battery is covered for 8 years/100,000 miles which ever occurs first. In normal use, we expect the battery to last longer than the length of this warranty.

Lexus Hybrid Drive - Lexus hybrid technology that combines an advanced gasoline engine, electric motor/generators, a hybrid battery, an Electronically-controlled Continuously

Variable Transmission (ECVT) and advanced electronic controls to provide powerful acceleration, responsive and smooth performance, economy in economy driving conditions, and very clean tailpipe emissions.

Inverter - The inverter converts the hybrid battery's high voltage DC current into AC current for the electric motors and vice versa, depending on driving demands and the needs of the electrical system. The inverter can also boost the battery's power as needed for maximum power.

Motor/Generator - In a hybrid vehicle, the word "motor" refers to an electric motor which works with the vehicle's engine to efficiently drive the vehicle. Lexus hybrid vehicles use permanent magnet AC motors: an electric starter motor/generator, and an electric drive motor.

Regenerative Braking - Regenerative braking is a feature that allows an electric motor to act as a generator when braking. It converts kinetic energy of the car's motion into electrical energy. Whenever a Lexus hybrid is braking or slowing, electrical energy made during regenerative braking is used to recharge the hybrid battery and is measured in Watt Hours (Wh) on the Consumption Monitor screen.

Volt - The unit of measure for voltage. Voltage is the electrical pressure which causes current to flow in an electrical circuit.

Wh (Watt hours) - Electrical power used, or in the case of regenerated braking, regenerated and measured in terms of time.