2002 Lexus LS 430 Owners Manual - Page 284

STARTING AND DRIVING NOTICE While you are cruising with the dynamic laser cruise control on, if the master warning light comes on, the cruise indicator light flashes, "CHECK CRUISE SYSTEM" appears on the multi−information display and the warning tone sounds, turn the ignition switch off and then on again. If the function is cancelled again after setting or if settings cannot be made, the dynamic laser cruise control system may be malfunctioning. Although it is no problem to continue driving, have your vehicle checked by your Lexus dealer. 214.Conventional (fixed speed) cruise control 215.mode This mode allows you to cruise at a desired speed over about 45 km/h (28 mph) with your foot off the accelerator pedal. Cruising speed can be maintained, although a slight speed change may occur when driving up or down a gradient, within the limits of engine performance. On steeper hills, the speed will change more radically so it is better to drive without cruise control. When cruise control is on, the driving pattern of the automatic transmission is fixed in the normal position, regardless of the position of the selector switch. 270