Lexus IS F 2012 Owner's Manual page 204

2-4. Using other driving systems
Disabling the pre-collision braking
Obstacles not detected
■
The sensor cannot detect plastic obstacles such as pylons. There may also be occa-
sions when the sensor cannot detect pedestrians, animals, bicycles, motorcycles,
trees, or snowdrifts.
204
The pre-collision braking function
can be turned on and off using the
satellite switch. (P. 343)
Press "" or "" to display the
"PCS BRAKE" setting ( ). Then,
press the "ON/OFF" button in the
middle of the switch to select either
"ON" or "OFF" ( ).
It may take approximately 3 sec-
onds for the display to change after
the satellite switch is operated.
The "PCS" warning light flashes
when "OFF" is selected.