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204 4-5. Using the driving support systems LEXUS NX300 Owners Manu- al_USA_M78285_en WARNING ■ Cautions regarding the driving assist systems Observe the following precautions, as there are limitations to the assistance provided by the system. Failure to do so may cause an accident resulting in death or serious injury. ● Assisting the driver to measure follow- ing distance The dynamic radar cruise control with full-speed range is only intended to help the driver in determining the fol- lowing distance between the driver’s own vehicle and a designated vehicle traveling ahead. It is not a mechanism that allows careless or inattentive driv- ing, and it is not a system that can assist the driver in low-visibility conditions. It is still necessary for driver to pay close attention to the vehicle’s surroundings. ● Assisting the driver to judge proper following distance The dynamic radar cruise control with full-speed range determines whether the following distance between the driver’s own vehicle and a designated vehicle traveling ahead is within a set range. It is not capable of making any other type of judgement. Therefore, it is absolutely necessary for the driver to remain vigilant and to determine whether or not there is a possibility of danger in any given situation. ● Assisting the driver to operate the vehicle The dynamic radar cruise control with full-speed range has limited capability to prevent or avoid a collision with a vehicle traveling ahead. Therefore, if there is ever any danger, the driver must take immediate and direct con- trol of the vehicle and act appropri- ately in order to ensure the safety of all involved. ■ To avoid inadvertent dynamic radar cruise control with full-speed range activation Switch the dynamic radar cruise control with full-speed range off using the “ON/ OFF” button when not in use. ■ Situations unsuitable for dynamic radar cruise control with full-speed range Do not use dynamic radar cruise control with full-speed range in any of the follow- ing situations. Doing so may result in inappropriate speed control and could cause an acci- dent resulting in death or serious injury. ● Roads where there are pedestrians, cyclists, etc. ● In heavy traffic ● On roads with sharp bends ● On winding roads ● On slippery roads, such as those cov- ered with rain, ice or snow ● On steep downhills, or where there are sudden changes between sharp up and down gradients Vehicle speed may exceed the set speed when driving down a steep hill. ● At entrances to freeways and highways ● When weather conditions are bad enough that they may prevent the sen- sors from detecting correctly (fog, snow, sandstorm, heavy rain, etc.) ● When there is rain, snow, etc. on the front surface of the radar sensor or camera sensor ● In traffic conditions that require fre- quent repeated acceleration and deceleration ● When your vehicle is towing a trailer or during emergency towing ● When an approach warning buzzer is heard often |