Lexus IS 350C 2012 Manual page 200

2-4. Using other driving systems
■
Setting the vehicle speed (vehicle-to-vehicle distance control
mode)
STEP 1
STEP 2
200
Press the "ON-OFF" button to
activate the cruise control.
Cruise control indicator will
come on.
Press the button again to deacti-
vate the cruise control.
Accelerate or decelerate the
vehicle to the desired speed,
and push the lever down to set
the speed.
The vehicle speed at the
moment the lever is released
becomes the set speed.