Toyota PRIUS Owner's Manual page 343

Changing the vehicle-to-vehicle distance (vehicle-to-vehicle dis-
tance control mode)
Pressing the button changes the
vehicle-to-vehicle distance as fol-
lows:
Long
1
Medium
2
Short
3
The vehicle-to-vehicle distance is
set automatically to long mode
when the power switch is turned to
ON mode.
If a vehicle is running ahead of you, the preceding vehicle mark will also be
displayed.
Vehicle-to-vehicle distance settings (vehicle-to-vehicle distance
control mode)
Select a distance from the table below. Note that the distances shown
correspond to a vehicle speed of 80 km/h (50 mph). Vehicle-to-vehicle
distance increases/decreases in accordance with vehicle speed.
When the vehicle is stopped by system control, the vehicle-to-vehicle
distance will be about 3 m (10 ft.) to 5 m (16 ft.) regardless of the vehi-
cle-to-vehicle distance setting.
PRIUS_OM_OM47A31E_(EE)
4-5. Using the driving support systems
Distance options
Long
Medium
Short
Preceding
vehicle mark
Vehicle-to-vehicle distance
Approximately 50 m (160 ft.)
Approximately 40 m (130 ft.)
Approximately 30 m (100 ft.)
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