Lexus GS430 User Manual page 421

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STARTING AND DRIVING

Dynamic radar cruise control should not be used in

circumstances which are inappropriate for any cruise control

such as entering freeway on−ramps or off−ramps.

The dynamic radar cruise control should not be used

when exiting from, or when entering or merging onto a

When you are following a slower moving

vehicle and exiting, the sensor does not detect the

vehicle and will accelerate to preset speed.

D If other vehicles are driving outside of the millimeter

wave 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 radar

cruise control system will not function properly.

D When a slower vehicle in front of you leaves the lane,

the dynamic radar cruise control will no longer detect

a vehicle ahead and will attempt to accelerate the

vehicle to the faster preset speed.