Lexus 2003 LS Owner's Manual page 426

This quick reference guide provides you with information on Dynamic Laser Cruise Control Vehicle–to–Vehicle Distance
Control Mode. Prior to use of this system, you should be thoroughly familiar with this system, referring to "Dynamic Laser
Cruise Control" in Section 3–1, Owner's Manual in conjunction with this quick reference guide.
r Dynamic Laser Cruise Control Operation
The laser radar sensor in this system primarily detects the reflectors of the vehicle ahead of you to determine the presence of the vehicle and the
vehicle–to–vehicle distance. The detection range of the sensor is about 120 m (400 ft.) ahead.
Y If no vehicle is detected ahead of you:
R Your cruising speed is maintained at the preset speed from about 45 km/h (28 mph) to about 135 km/h (85 mph).
Y If a vehicle is detected ahead of you:
R Your cruising speed changes in proportion to the speed of the vehicle ahead to maintain an appropriate distance from your vehicle to the
vehicle ahead.
R If the vehicle ahead is out of the detection range, your cruising speed will be gradually increased up to the preset speed, and your vehicle
resumes fixed–speed cruising.
R If the vehicle ahead decelerates abruptly or other vehicles cut in ahead of you, your vehicle may be too close to the vehicle ahead of you.
If this occurs, the multi–information display flashes and beeps. (Approach warning)
The dynamic laser cruise control should be used on roads in which sufficient vehicle–to–vehicle distance will be ensured
(such as on freeways).
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2003 LS430 Laser Cruise (OM50602U) from Aug. '02 Prod.