Lexus GS 450h 2008 Owner's Manual page 177

Vehicle-to-vehicle distance settings
■
Select a distance from the table below. Note that the distances shown correspond
to a vehicle speed of 50 mph (80 km/h). Vehicle-to-vehicle distance increases/
decreases in accordance with vehicle speed.
Distance options
Medium
Radar sensor and grille cover
■
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice or plastic
objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
Long
Short
2-4. Using other driving systems
Vehicle-to-vehicle distance
Approximately 210 ft. (65 m)
Approximately 150 ft. (45 m)
Approximately 100 ft. (30 m)
Grille cover
Radar sensor
2
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