See also:

Horn
To sound the horn, press on or close to themark. ...

Items to initialize
The following items must be initialized for normal system operation in cases such as after the 12-volt battery is reconnected, or maintenance is performed on the vehicle. ...

Lexus Hybrid Drive Unique Energy Management System
Through the application of brand-specific engineering solutions and a unique energy management system incorporating bespoke software tuning, Lexus engineers have focused on enhancing both the envi ...