lane assist Lexus GS450h 2013 Owner's Guide

7357-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
Indicates that there is a
high possibility of a frontal
collision, or that the pre-
collision braking function
is operatingAt the same time,
will appear
on the head-up dis-
play too (the image
flashes).
Slow the vehicle by
applying the brakes.
Indicates that the LKA
(Lane-Keeping Assist) is
suspended
•The camera sensor temperature is higher
than the operation tem-
perature range.
•The power steering system operation is
restricted.
Restart the LKA after
driving for a while.
Warning messageDetailsCorrection procedure
(Flashes)
(If equipped)
(If equipped)
GS450h_U.book Page 735 Monday, January 23, 2012 10:20 AM

7367-2. Steps to take in an emergency
GS450h_U (OM30D01U)
Alerts the driver that the
vehicle is out of the lanes
(while the LKA [Lane-
Keeping Assist] system is
operating)The warning buzzer
sounds continuously.
The lane markings and/
or the steering wheel
marking flash.
At the same time,
will appear
on the head-up dis-
play (part of the image
flashes).
Check around the vehi-
cle and back to inside of
the lane markings.
Indicates that the LKA
(Lane-Keeping Assist)
system detects no-
handed driving (while the
lane keeping assist func-
tion is operating) The warning buzzer
sounds twice.
Grip the steering wheel
firmly.
Indicates that the Blind
Spot Monitor sensors or
the surrounding area on
the bumper is dirty or
covered with ice
Clean the sensor and its
surrounding area on the
bumper.
Indicates that the hybrid
system has overheatedThis message may be
displayed when driving
under severe operating
conditions. (For exam-
ple, when driving up a
long steep hill.)
Stop and check.
(→ P. 7 74 )
Warning messageDetailsCorrection procedure
(If equipped)
(If equipped)
(If equipped)
sec_07-02.fm Page 736 Monday, January 30, 2012 10:37 AM

7387-2. Steps to take in an emergency
GS450h_U (OM30D01U)
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-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
■The LKA (Lane-Keeping Assist) lane departure warning function
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes
GS450h_U.book Page 738 Monday, January 23, 2012 10:20 AM

7607-2. Steps to take in an emergency
GS450h_U (OM30D01U)
CAUTION
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use
with your vehicle. Do not use your compact spare tire on another vehicle.
●Do not use more than one compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting opera-
tions that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may
not operate correctly:
• ABS & Brake assist
•VSC
•TRAC
•Cruise control
• Dynamic radar cruise control (if equipped)
• PCS (if equipped)
•EPS • AFS (if equipped)
•AVS
• LKA (Lane-Keeping Assist)
(if equipped)
• Rear view monitor system
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)
GS450h_U.book Page 760 Monday, January 23, 2012 10:20 AM

843Alphabetical index
GS450h_U (OM30D01U)
Console box ............................................577
Console box light ..................................577
Consumption screen ............................. 113
Coolant..................................................... 642Capacity .................................................787
Checking................................................ 642
Preparing and checking before winter ..................................................... 319
Cooling system ..................................... 642 Engine overheating........................... 774
Hybrid system overheating .......... 774
Cruise control
Cruise control...................................... 232
Dynamic radar crui se control......236
Cup holders ............................................ 578
Curtain shield airbags ........................... 39
Customizable features ....................... 807
Daytime running light system ............216
Defogger Front windshield ...................................371
Outside rear view mirrors ............ 384
Rear window ....................................... 384
Differential............................................... 789
Dimensions ............................................. 782
Dinghy towing......................................... 188 Display
Dynamic radar crui se control ..... 236
LKA (Lane-Keeping Assist)......... 255
Multi-information display.................. 94
Remote Touch screen ....................330
Trip information ..................................... 95
Warning message............................... 721
Do-it-yourself maintenance............... 631
Door courtesy lights Location ................................................... 571
Wattage ................................................... 791
Door lock
Doors......................................................... 137
Smart access system with push-button start ................................ 121
Wireless remote control..................134
Doors .......................................................... 137 Automatic door locking
and unlocking system ....................139
Door glasses ..........................................164
Door lock................................................. 137
Open door warning buzzer .......... 125
Open door warning light ................ 714
Outside rear view mirrors ............... 161
Rear door child-protector ............. 138
D
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849Alphabetical index
GS450h_U (OM30D01U)
LightsFog light switch .................................... 218
Headlight switch...................................213
Illuminated entry system ................. 573
Interior light ........................................... 572
Interior lights list ................................... 571
Personal lights ..................................... 572
Replacing light bulbs ....................... 689
Trunk light ............................................... 143
Turn signal lever ................................ 205
Vanity lights ......................................... 583
Wattage ....................................................791
Welcome light illumination control ..................................................... 121
LKA (Lane-Keeping Assist)...............251 Operation .............................................. 252
Warning messages........ 724, 734, 735, 736
Load capacity.......................................... 186
Lock steering column ...........................192
Low profile tire....................................... 656
Luggage hook......................................... 581
Luggage security system.....................142 Maintenance
Do-it-yourself maintenance ...........631
General maintenance ..................... 626
Maintenance data.............................. 782
Maintenance requirements .......... 623
Malfunction indicator lamp ................ 712
Master warning light ............................. 714
Meter............................................................ 89 Head-up display ..................................102
Indicators .................................................. 87
Instrument panel light control .......... 91
Meters ........................................................ 89
Multi-information display.................. 94
Warning lights........................................ 85
Micro dust and pollen filter ...............374
Mirrors Inside rear view mirror......................159
Outside rear view mirror defoggers........................................... 384
Outside rear view mirrors ............... 161
Vanity mirrors .....................................583
Moon roof ................................................. 167 Door lock linked
moon roof operation..................... 168
Jam protection function................... 168
Operation................................................ 167
Warning message............................. 729
MP3 disc ................................................. 435M
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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850Alphabetical index
GS450h_U (OM30D01U)
Multi-information display ..................... 94Dynamic radar crui se control......236
Energy monitor ...................................... 110
Lane-Keeping Assist ....................... 255
Language ..................................................98
Switching the display...........................95
Trip information .....................................95
Warning message ............................... 721
Navigation system
*
Noise from under vehicle ....................... 8
Odometer .................................................. 89
Oil Engine oil............................................... 785
Differential oil ...................................... 789
Opener Hood ........................................................634
Trunk ........................................................... 141
Outer foot lights
Outer foot lights .................................. 571
Wattage ....................................................791 Outside rear view mirrors................... 161
Adjusting and folding ......................... 161
Blind spot monitor ............................305
Linked mirror function
when reversing.................................. 162
Mirror position memory ................. 150
Outside rear view mirror defoggers............................ 384
Outside temperature display ............. 95
Overheating............................................ 774
Paddle shift switches.............................201
Parking assist sensors (intuitive parking assist).................... 261
Parking brake .........................................207
If the parking brake cannot be released ....................... 765
Operation.............................................. 207
Parking brake engaged warning buzzer ............................... 730
Parking brake engaged
warning message........................... 730
Parking lights ........................................... 213
Light switch............................................. 213
Replacing light bulbs ....................... 697
Welcome light illumination control............................121
N
O
P
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853Alphabetical index
GS450h_U (OM30D01U)
Seats............................................................ 148Adjustment ............................................. 148
Adjustment precautions .................. 149
Child seats/child restraint
system installation..............................59
Cleaning ................................................ 620
Driving position memory ................ 150
Head restraints..................................... 155
Power easy access system ............ 153
Properly sitting in the seat ................30
Seat heaters ......................................... 590
Seat position memory....................... 150
Seat ventilators ..................................... 591
Sensor
Automatic headlight system .......... 216
Driver monitor sensor .................... 298
Humidity sensor ................................. 376
Inside rear view mirror ..................... 160
Intuitive parking assist ....................... 261
Lexus night view .................................. 315
LKA (Lane-Keeping Assist) .........259
Radar sensor .................245, 298, 310
Rain-sensing windshield wipers ................................................... 224
Service plug ................................................74
Service reminder indicators ............... 84 S-FLOW mode......................................374
Shift lever ................................................... 199
Hybrid transmission ...........................199
If the shift lever cannot be shifted from P ............ 764
Shift lever light ......................................... 571
Shift lock system ....................................764
Side airbags ................................................39
Side marker lights .................................. 213 Light switch............................................. 213
Replacing light bulbs ....................... 697
Welcome light illumination
control......................................................121
Side mirrors ............................................... 161
Adjusting and folding ......................... 161
BSM (Blind spot monitor) ............305
Linked mirror function when reversing.................................. 162
Mirror position memory ................. 150
Side turn signal lights .......................... 205
Replacing light bulbs ....................... 697
Turn signal lever .................................205
Smart access system with push-button start .........................121
Antenna location.................................. 123
Entry functions ........................................121
Starting the hybrid system.............. 189
Warning message.............................. 727
Snow mode............................................. 200
Snow tires ................................................ 323
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854Alphabetical index
GS450h_U (OM30D01U)
Spare tire.................................................. 749Inflation pressure ............................... 790
Storage location ................................ 750
Spark plug ............................................... 787
Specifications ......................................... 782
Speedometer ............................................ 89
Sport mode ............................................. 286
Steering lock ............................................192
Column lock release ......................... 193
Steering lock system warning message ........................... 747
Steering wheel ........................................ 158
Adjustment ............................................. 158
Audio switches ................................... 503
Heated steering wheel ................... 588
Power easy access system ............ 153
Steering wheel position memory.............................. 150
Stop lights Replacing light bulbs ........................697
Storage feature ..................................... 574
Stuck If the vehicle becomes stuck ........ 778
Sun shade
Rear.......................................................... 594
Rear door .............................................. 595
Roof............................................................ 168
Sun visors .................................................583 Switches
AFS OFF switch ................................... 215
Audio remote control switches ..............................................503
Brake hold switch................................210
BSM (Blind spot monitor) switch ...................................................305
Cruise control switch .......... 232, 236
“DISP” button.......................................... 95
Door lock switches ............................. 137
Driving mode select switch .......... 286
Driving position memory
switches ............................................... 150
Emergency flashers switch ........... 702
EV drive mode switch ......................196
Fog light switch .....................................218
Garage door opener switches ............................................. 600
Headlight cleaner switch ............... 226
Heated steering wheel switch .................................................. 588
HUD (Head-up display)
switches ................................................102
Ignition switch....................................... 189
Intuitive parking assist........................ 261
Lexus night view switch......................311
Light switch............................................. 213
LKA (Lane-Keeping Assist)
switch ................................................... 253
Moon roof switches ........................... 167
Outside rear view mirror switches ................................................. 161
GS450h_U.book Page 854 Monday, January 23, 2012 10:20 AM