Lexus 2003 LS Owner's Manual page 278

STARTING AND DRIVING
Changing vehicle–to–vehicle distance
31L163b

1 Long
2 Middle 3 Short
You can select one of the following vehicle–to–vehicle
distances: "Long", "Middle" or "Short". Each time you
push the "DISP2" switch briefly, the setting changes from
"Long" to "Middle" to "Short" and then back to "Long".
You can confirm the setting on the multi–information
display.
It should be noted that pushing the "DISP2" switch longer will
change to another screen.
Your vehicle speed changes in proportion to the speed of
the vehicle ahead, maintaining the selected distance.
However, if the vehicle speed is slower, the selected
distance will be shorter than the designated distance.
When the vehicle–to–vehicle distance control mode is
activated or the multi–information display indicates "RADAR
READY", the vehicle–to–vehicle distance setting can be
changed.
264
The vehicle–to–vehicle distance is always set to "Long" when
the ignition switch is turned on.
CAUTION
A Select the vehicle–to–vehicle distance considering
traffic conditions.
vehicle–to–vehicle distance based on time interval
when driving at 88 km/h (55 mph) is shown below :
"Long" . . . . . . . . about 75 m (about 245 ft.)
"Middle" . . . . . . about 50 m (about 165 ft.)
"Short" . . . . . . . about 30 m (about 100 ft.)
If the vehicle speed is slower than 88 km/h (55 mph),
the distance will be shorter than the above.
A During long downhill driving, the vehicle–to–vehicle
distance will be shorter than the selected distance.
The approximate