Lexus 2003 LS Owner's Manual page 277

31L162
CAUTION
If other vehicles are driving outside of the laser radar
detection range, a delay in the detection of the vehicle
cutting in at short range or detection failure of the
motorcycle running on the side of the same lane will
occur. In this case, the dynamic laser cruise control
system will not function properly.
STARTING AND DRIVING
CAUTION
A When a slower vehicle in front of you leaves the lane,
the dynamic laser cruise control will no longer detect
a vehicle ahead and will attempt to accelerate the
vehicle to the faster preset speed.
A When the vehicle–to–vehicle distance control is on
(on follow–up cruising), your cruising speed is
regulated in proportion to the speed of the vehicle
ahead, so increasing the preset vehicle speed using
the control lever does not accelerate the vehicle.
However, if the vehicle ahead leaves the lane, your
cruising speed will increase up to the preset speed
because the preset speed has been set higher using
the control lever. Confirm the setting on the
multi–information display.
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