sat nav Lexus IS F 2012 Owner's Manual

203
2-4. Using other driving systems
2
When driving
IS F_U
PCS (Pre-Collision System)∗
Radar sensorDetects vehicles or other obsta-
cles on or near the road ahead and
determines whether a collision is
imminent based on the position,
speed, and heading of the obsta-
cles. Grille cover
Radar sensor
∗: If equipped
When the radar sensor detects possibility of a frontal collision, the pre-
collision system such as the brakes and seat belts are automatically
engaged to lessen impact and injuries to occupants as well as vehicle dam-
age.
■Pre-collision seat belts
If the pre-collision sensor detects that a collision is unavoidable, the pre-
collision system will retract the seat belt before the collision occurs.
The same will happen if the driver makes an emergency braking or loses
control of the vehicle. ( →P. 6 6 )
However, the system will not operate in the event of skidding when the
VSC system are disabled.
■ Pre-collision brake assist
When there is a high possibility of a frontal collision, the system applies
greater braking force in relation to how strongly the brake pedal is
depressed.
■Pre-collision braking
When there is a high possibility of a frontal collision, the system warns the
driver using a warning light, warning display and buzzer. If the system
determines that a collision is unavoi dable, the brakes are automatically
applied to reduce the collision speed. The pre-collision braking function
can be turned on and off using the satellite switch.

569
Alphabetical index
IS F_U
Spare tireInflation pressure ............................... 420
Storage location................................. 487
Spark plug .................................................518
Specifications........................................... 512
Speedometer...........................................150
Steering wheel Adjustment .............................................. 70
Audio switches .................................... 277
Steering wheel position
memory ................................................. 55
Storage feature ..................................... 334
Stuck If your vehicle becomes stuck ... 508
Sun visors................................................. 340
Sunshade .................................................... 80
Switch Emergency flasher switch ............. 454
Engine switch ........................................ 134
Fog light switch..................................... 166
F-sport mode total control switch .......................................... 140, 199
Hazard light switch........................... 454
Ignition switch........................................ 134
Light switches........................................ 162 Power door lock switch .................... 46
Power window switch ........................ 76
Satellite switches.................................343
SNOW switch ..................................... 140
Transmission shift
switches ........................................ 141, 143
Window lock switch............................ 76
Wiper and washer switch............... 168
Tachometer.............................................. 150
Tail lights Switch.........................................................162
Talk switch* .............................................304
Telephone switch*................................304
Theft deterrent system Alarm.......................................................... 88
Engine immobilizer system..............86
Theft prevention labels ........................... 91
Tire inflation pressure .........................420
Tire information
Glossary .................................................. 531
Size........................................................... 528
Tire identification number............. 528
Uniform tire quality grading .........529
T
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.