cruise control Lexus IS F 2011 Owner's Guide

198
2-4. Using other driving systems
IS F_EE
CAUTION
Conditions under which the vehicle-to-vehicle distance control may not
function correctly
Apply the brakes as necessary in the following conditions as the radar sen-
sor may not be able to correctly detect vehicles ahead, and a fatal or serious
accident may result:
When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
When your vehicle is pointing upwards (caused by a heavy load in the
trunk etc.)
When the road curves or when the lanes are narrow
When steering wheel operation or your position in the lane is unstable
When the vehicle ahead of you decelerates suddenly
Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively.
Otherwise, the system may not function correctly and could result in an
accident.
Keep the sensor and front grille cover clean at all times.
Clean the sensor and front grille cover with a soft cloth so you do not
mark or damage them.
Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunc-
tion. If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Do not disassemble the sensor.
Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
Do not modify or paint the sensor and grille cover.
Do not replace them with non-genuine parts.

335
3-7. Other interior features
3
Interior features
IS F_EE
Changing the settings
Each item is displayed and its setting can be changed only in the following
conditions:
Intrusion sensor: When the “ENGINE START STOP” switch is off and
the auto alarm is not set.
Lexus parking assist-sensor: When the “ENGINE START STOP” switch
is in IGNITION ON mode.
Items other than the above: When the “ENGINE START STOP” switch
is in IGNITION ON mode and the vehicle is stopped.
Display
The display will return to the original display if the satellite switches are not
operated for an extended period.
Even if the display is in satellite switch mode, it will switch in the event of a
warning or when the radar cruise control (if equipped) is used. If this occurs,
press any of the satellite switches or “DISP” switch on the steering wheel to
return the display to satellite switch mode.

402
4-3. Do-it-yourself maintenance
IS F_EELeft side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APower seat
2A/C7.5 AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO. 110 ADisplay
5FUEL OPEN10 AFuel filler door opener
6TV NO. 27.5 ALexus parking assist monitor
7PSB30 APre-crash seat belt
8S/ROOF25 AMoon roof
9TA I L10 ATail lights, license plate lights
10PANEL7.5 A
Switch illumination, air condition-
ing system, display, cigarette
lighter illumination, shift lever
light, instrument panel lights
11RR FOG7.5 ARear fog lights
12ECU-IG LH10 A
Cruise control, air conditioning
system, electric power steering,
shift lock system, moon roof,
Lexus parking assist monitor
13FR S/HTR LH15 ASeat heaters

434
5-2. Steps to take in an emergency
IS F_EE
(If equipped)
Indicates a Lexus parking assist-sensor malfunc-
tion.
The malfunctioning assist-sensor is shown flash-
ing on the display.
(Flashing and then
continuously on)
(Flashing)
(If equipped)
Indicates a malfunction in the radar cruise control
system.
Press the “ON-OFF” button once to deactivate
the system, and then press the button again to
reactivate the system.
Warning messageDetails

438
5-2. Steps to take in an emergency
IS F_EE
(If equipped)
Indicates that Lexus
parking assist-sensor is
dirty or covered with
ice.
Clean the sensor.
(Flashing and then
continuously on)
(Flashing)
(If equipped)Indicates that the radar
cruise control sensor is
dirty or covered with
ice.
Clean the sensor.
(Flashing and then
continuously on)
(Flashing)
(If equipped)Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance.
• Switch the driving
mode to either the
Normal or “Sport”
mode.
• If the windshield wip-
ers are on, turn them
off or set them to
either the intermittent
or the slow mode.
Warning messageDetailsCorrection procedure

5
439
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehi-
cle ahead (in radar
cruise mode).
Slow the vehicle by
applying the brakes.
(Flashing)
(If equipped)
Indicates that there is a
high possibility of a
frontal collision, or that
the pre-crash braking
function is operating.
Slow the vehicle by
applying the brakes.
Warning light display in radar cruise mode (if equipped)
In the following cases, the warning light may not be displayed even if vehi-
cle-to-vehicle distance decreases.
When your vehicle and the vehicle ahead are traveling at the same speed
or the vehicle ahead is traveling more quickly than your vehicle
When the vehicle ahead is traveling at a very low speed
Immediately after cruise control speed is set
At the instant the accelerator pedal is depressed
Warning messageDetailsCorrection procedure

452
5-2. Steps to take in an emergency
IS F_EE
CAUTION
When using the compact spare tire
Remember that your spare tire is specifically designed for use with your
vehicle. Do not use your spare tire on another vehicle.
Do not use more than one spare tire simultaneously.
Do not use the compact spare tire as a rear tire. If you have a flat rear tire,
replace a front tire with the compact spare tire first and then replace the
flat rear tire with the tire removed from the front.
Replace the spare tire with a standard tire as soon as possible.
Avoid sudden acceleration, deceleration and braking, as well as sharp cor-
nering.
Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km/h (50 mph) when a compact spare
tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failing to
observe this precaution may lead to an accident causing death or serious
injury.
When the spare tire is installed
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
ABS & brake assist
VSC
TRC
VDIM
Navigation system (if equipped)
Lexus parking assist-sensor (if equipped)
Dynamic radar cruise control (if equipped)
Cruise control (if equipped)
PCS (if equipped)
LSD
Automatic headlight leveling system

493
Alphabetical index
IS F_EE
Child-protectors...........................55
Cigarette lighter .........................337
Cleaning
Exterior .................................350
Interior ..................................353
Seat belts...............................354
Clock .........................................332
Coat hooks .................................344
Condenser ..................................374
Console box ...............................326
Cooling system
Engine overheating ...............465
Cornering assist sensors ............199
Cruise control
Cruise control .......................180
Dynamic radar cruise control .....
184
Cup holder .................................327
Curtain shield airbags ................105
Customizable features ...............484Daytime running light system .. 173
Defogger*
Rear window ........................ 236
Side mirror ........................... 236
Dimension ................................ 472
Display
Dynamic radar cruise control ....
184
Satellite switch mode ........... 333
Trip information .................. 168
Warning message................. 431
Do-it-yourself maintenance ...... 359
Door courtesy lights
Door courtesy lights............. 320
Wattage ................................ 481
Door pockets............................. 328
Doors
Door lock ................... 36, 52, 54
Door windows........................ 82
Double locking system .......... 96
Side mirrors ........................... 81
Driver's seat belt reminder light 428
Driving
Correct posture .................... 103
Procedures ........................... 136
Driving position memory ........... 62
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s
D

497
Alphabetical index
IS F_EE
Maintenance
Do-it-yourself maintenance ..359
Maintenance data ..................472
Maintenance requirements....356
Meter
Instrument panel light control ....
162
Meters ...................................161
Mirrors
Inside rear view mirror ...........79
Side mirror heater .................236
Side mirrors ............................81
Vanity mirrors ......................331
Moon roof....................................85
MP3 disc*..................................252
Multi-information display .........167
Odometer ...................................161
Oil
Engine oil .............................369
Opener
Fuel filler door ........................89
Hood .....................................363
Trunk ......................................59
Outer foot lights
Outer foot lights....................320
Wattage .................................481
Outside rear view mirrors
Adjusting and folding .............81
Mirror position memory .........62
Outside temperature display ......168
Overhead courtesy lights
Overhead courtesy lights ......320
Wattage .................................481
Overheating, Engine ..................465Parking assist sensors* ............. 199
Parking brake............................ 160
PCS ........................................... 213
Personal lights
Switch .................................. 323
Pollen removal mode* .............. 232
Power outlet.............................. 338
Power windows .......................... 82
Pre-crash safety system ............ 213
Radar cruise control.................. 184
Radiator .................................... 374
Radio* ...................................... 241
RDS* ........................................ 242
Rear fog lights
Replacing light bulbs ........... 407
Switch .................................. 175
Wattage ................................ 481
Rear turn signal lights
Replacing light bulbs ........... 407
Wattage ................................ 481
Rear window defogger* ........... 236
Replacing
Electronic key battery .......... 390
Fuses .................................... 393
Light bulbs ........................... 407M
O
P
R

501
Alphabetical index
IS F_EE
Warning buzzers
Brake system ........................425
Open door ............................428
Seat belt reminder .................428
Warning lights
Anti-lock brake system .........426
Brake assist system...............426
Brake system ........................425
Charging system ...................426
Electric power steering
system warning light ..........426
Electronic engine control
system.................................426
Low fuel level .......................428
Malfunction indicator lamp ..426
Master warning light ............428
Open door .............................428
Pre-crash safety system ........426
Pretensioners ........................426
Seat belt reminder light ........428
SRS airbags ..........................426Warning messages
Automatic transmission fluid.....
435
Dynamic radar cruise
control ....................... 433, 435
Engine oil level .................... 435
Engine oil maintenance ....... 435
Engine oil pressure .............. 432
Engine oil temperature......... 432
Headlight ............................. 433
Hill-start assist control ......... 207
Hood .................................... 435
Lexus parking assist
sensor......................... 433, 435
Moon roof ............................ 435
Open door ............................ 435
Parking brake ....................... 435
Pre-crash safety system 433, 435
Smart entry & start system .. 440
Steering lock ........................ 433
Trunk ................................... 435
Washer fluid ........................ 435W