Toyota 2015 Sienna Manual page 264

264
4-5. Using the driving support systems
Changing the vehicle-to-vehicle distance
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 engine switch is turned to
IGNITION ON mode.
If a vehicle is running ahead of
you, the preceding vehicle mark
will be also displayed.
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
SIENNA_OM_01999-08001_(U)
Long
Medium
Short
Preceding
vehicle mark
Vehicle-to-vehicle distance
Approximately 160 ft. (50 m)
Approximately 130 ft. (40 m)
Approximately 100 ft. (30 m)