2006 Lexus LS 430 Owners Manual - Page 146

2-4. Using other driving systems n Setting vehicle speed Settings can be made when the vehicle is traveling above 28 mph (45 km/h). n Unsuitable conditions You cannot set the speed in the following conditions: • When the selector lever is in a position other than D, 4, 5, or 6. • When driving in adverse weather conditions. n Automatic cruise control cancellation In the following cases, the preset speed is cancelled. If the system is restored, cruise control enters the ready mode The slip indicator light blinks and a warning tone sounds. The anti-lock braking system activates. Foreign matter adheres to the sensor. The driving pattern selector switch is set to "SNOW" mode. The wipers are operated at high speed (radar), or either high or low speeds (laser). This includes high and low speed operation with the wiper lever in the AUTO position. • The vehicle's speed falls below 25 mph (40 km/h). In this case, you must apply the brakes manually to slow the vehicle. If the preset speed automatically cancels out for other than the above reasons, the system may have malfunctioned. Do not operate the dynamic radar/laser cruise control. You may continue driving, however have your vehicle checked by your Lexus dealer at the earliest opportunity. 132