Engaging Cruise System (Check CRUISE Indicator Light)
WARNING: This page is about a different car, the 2000 Lexus SC 400, 2000 Lexus SC 300, 2000 Lexus LS 400, 2000 Lexus GS 400, and 2000 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition on. Turn cruise main switch on (press button on end of lever located on right side of steering column). CRUISE indicator light on instrument cluster should illuminate indicating speed can now be set.