2006 Lexus RX 400h Owners Manual - Page 476

STARTING AND DRIVING (b) Setting the desired speed (c) Cancelling the preset speed You can cancel the preset speed by doing any of the following: a. Pulling the lever in the "CANCEL" direction. b. Depressing the brake pedal. c. Pressing the "ON−OFF" button. In the following cases, the preset speed automatically cancels out: a. The vehicle speed falls below about 40km/h (25 mph). b. If the vehicle speed drops 16 km/h (10 mph) below the preset speed, the preset speed will also automatically be cancelled. c. The slip indicator light blinks and an alarm sounds. (This occurs when the vehicle is about to skid.) If cancelled by a. or b., the preset speed data is cleared and you must set the speed from the beginning. If the preset speed automatically cancels out for other than the above reasons, do not operate the cruise control. Although it is no problem to continue driving, have your vehicle checked by your Lexus dealer at the earliest opportunity. The transmission must be in "D" before you set the cruise control speed in the conventional cruise control mode. Bring your vehicle to the desired speed, push the lever down in the "− SET" direction and release it. This sets the vehicle at that speed and the display shows the preset speed. You can now take your foot off the accelerator pedal. If you need to accelerate - for example, when passing - depress the accelerator pedal enough for the vehicle to exceed the preset speed. When you release the accelerator pedal, the vehicle will return to the speed set prior to acceleration. You cannot set cruise control speed if the master warning light comes on, a warning tone sounds and the warning message "CHECK CRUISE SYSTEM" appears on the multi−information display. If this message appears, see "(g) Conventional cruise control mode failure warning" on page 442. 440