steering wheel Lexus IS F 2012 Workshop Manual

470
5-2. Steps to take in an emergency
IS F_U
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If the tire is flat,
change to the spare tire and have the flat tire repaired by the nearest Lexus
dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

5
When trouble arises
485
5-2. Steps to take in an emergency
IS F_U
Once(Comes on for 10 sec-onds.)
(Flashing)
Indicates that the
key battery is low.Replace the bat-
tery. ( →P. 4 2 9 )

Indicates that the
“ENGINE START
STOP” switch has
been turned
twice to ACCES-
SORY mode
without starting
the engine when
a closed door is
opened.
Press the
“ENGINE START
STOP” switch
while applying the
brakes.

(Flashing)
Indicates that the
steering lock has
not released
within 3 seconds
of pressing the
“ENGINE START
STOP” switch.Press the
“ENGINE START
STOP” switch
again while turn-
ing the steering
wheel with the
brake pedal
depressed.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure

5
When trouble arises
509
5-2. Steps to take in an emergency
IS F_U
If your vehicle has to be stopped in an emergency
CAUTION
■If the engine has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the brake pedal
harder to depress and the steering wheel heavier to turn. Decelerate as much as
possible before turning off the engine.
Only in an emergency, such as if it becomes impossible to stop the vehicle
in the normal way, stop the vehicle using the following procedure:
Steadily step on the brake pedal with both feet and firmly
depress it.
Do not pump the brake pedal repeatedly as this will increase the
effort required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N After slowing down, stop the vehicle in a safe place by the road.
Stop the engine.
If the shift lever cannot be shifted to N Keep depressing the brake pedal with both feet to reduce vehi-
cle speed as much as possible.
Stop the engine by pressing and
holding the “ENGINE START
STOP” switch for 3 consecutive
seconds or more.
Stop the vehicle in a safe place by the road.
STEP1
STEP2
STEP3
STEP4
STEP3
Press and hold for 3 seconds or more
STEP4
STEP5

521
6-1. Specifications
6
Vehicle specifications
IS F_U
Steering
Tires and wheels
Free playLess than 1.2 in. (30 mm)
Ti r e s i z e
Front: 225/40R19 93Y
Rear: 255/ 35R19 96Y
Spare: T135/70R18 103M
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Front:
36 psi (250 kPa, 2.5 kgf/cm2 or bar)*
Rear:
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)*
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
*: When driving at high speeds above 100 mph
(160 km/h), in countries where such speeds
are permitted by law, add 9.0 psi (60 kPa, 0.6
kgf/cm
2 or bar) to the front tires and rear tires.
Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.
Wheel size
Ty p e A
Front wheels: 19 × 8J
Rear wheels: 19 × 9J
Spare wheel: 18 × 4T
Ty p e B
Front wheels: 19 × 8 1 /2J
Rear wheels: 19 × 9 1 /2J
Spare wheel: 18 × 4T
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

531
6-1. Specifications
6
Vehicle specifications
IS F_U■
Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing
the tire's resistance to the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a specified indoor
laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer.
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of transmission, power
steering, power brakes, power windows, power seats,
radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)

539
6-2. Customization
6
Vehicle specifications
IS F_U
Wireless
remote con-
trol
(
→P. 4 3 )
Operation signal
(Emergency flashers)OnOff
Operation signal
(Buzzer) OnOff
Door lock buzzerOnOff
Trunk unlocking functionOnOff
Trunk unlocking operationPush and holdPush twice
One short push
Pa n i c f u n c t i o nOnOff
Door lock
(
→P. 4 6 )
Unlocking using a key
Driver's door
unlocked in one
step, all doors
unlocked in two
steps
All doors
unlocked in one step
Speed-detecting auto-
matic door lock functionOffOn
Opening driver's door
unlocks all doorsOffOn
Shifting gears to P
unlocks all doorsOnOff
Shifting gears to a posi-
tion other than P locks all
doors
OnOff
Steering
wheel
(
→P. 7 0 )
Auto tilt-away functionOnOff
ItemFunctionDefault settingCustomized
setting

562
IS F_U
Alphabetical index
Alphabetical index
A/C* ..........................................................220
ABS.............................................................. 197
ACCESSORY mode .......................... 134
Air conditioning filter .......................... 426
Air conditioning systemAir conditioning filter ....................... 426
Automatic air conditioning system .................................................. 220
Airbags Airbag operating conditions........... 97
Airbag precautions for your child.......................................................... 101
Airbag warning light ........................ 464
Curtain shield airbag operating conditions.............................................. 97
Curtain shield airbag
precautions .......................................... 101
Front passenger occupant
classification system....................... 106
General airbag pr ecautions ........... 101
Locations of airbags............................ 94
Modification and disposal of airbags .................................................. 105
Proper driving posture ............. 92, 101
Side airbag operating conditions.............................................. 97
Side airbag precautions .................... 101
SRS airbags ............................................. 94
Alarm ........................................................... 88
Antenna* ..................................................238
Anti-lock brake system ....................... 197
Armrest ...................................................... 351
Ashtrays ....................................................346
Audio input*............................................ 275
Audio system* Antenna .................................................. 238
Audio input ........................................... 275 AUX port ...............................................275
Bluetooth® audio ............................. 280
CD player/changer ........................... 241
iPod .......................................................... 256
MP3/WMA disc............................... 248
Optimal use .......................................... 273
Portable music player ......................275
Radio ........................................................233
Steering wheel audio switch......... 277
USB memory .......................................264
USB port ................................... 256, 264
Automatic air conditioning
system* .................................................. 220
Automatic headlight leveling
system ......................................................165
Automatic light control system.........162
Automatic transmission Automatic transmission ................... 138
If the shift lever cannot be shifted from P....................................497
M mode ................................................... 143
AUX port* .............................................. 275
Auxiliary box .......................................... 339
Back-up lights Wattage ..................................................522
Battery Checking............................................... 406
If the vehicle has a discharged battery ................................................. 502
Preparing and checking before winter...................................... 214
Bluetooth
® audio* ...............................280
Bluetooth® phone* ............................. 299
Bottle holders ......................................... 339
A
B

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”.