2015 Lexus GS300h lane assist

4957-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
(If equipped)
Indicates a malfunction in the LDA (Lane Departure
Alert with steering control) systemA buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
(If equipped)
Indicates a malfunction in the LKA (Lane-Keeping
Assist) system
A buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
(If equipped)
The operation conditions of the camera sensor (temper-
ature, etc.) are not met.
→When the operation conditions of the camera sen-
sor (temperature, etc.) are met, the following sys-
tems will become available.
• PCS (Pre-Crash Safety system)
• LKA (Lane-Keeping Assist) system
• LDA (Lane Departure Alert with steering control) system
• RSA (Road Sign Assist)
• AHS (Adaptive High-beam System)
•Automatic High Beam
(If equipped)
Indicates that the system is temporarily unavailable due
to a malfunction in a sensor other than the camera sen-
sor
A buzzer also sounds.
→ Turn the LDA (Lane Departure Alert with steering
control) system off, wait for a little while, and then
turn the LDA (Lane Departure Alert with steering
control) system back on.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

4967-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
(If equipped)
Indicates that the system is temporarily unavailable due
to a malfunction in a sensor other than the camera sen-
sor A buzzer also sounds.
→ Turn the LKA (Lane-Keeping Assist) system off, wait
for a little while, and then turn the LKA (Lane-Keep-
ing Assist) system back on.
(If equipped)
Dirt, rain, condensation, ice, snow, etc., are present on
the windshield in front of the camera sensor.
The following systems will be temporarily unusable.
• PCS (Pre-Crash Safety system)
• LKA (Lane-Keeping Assist) system
• LDA (Lane Departure Alert with steering control)
system
• RSA (Road Sign Assist)
• AHS (Adaptive High-beam System)
•Automatic High Beam
→ Turn the system off, remove any dirt, rain, condensa-
tion, ice, snow, etc., from the windshield, and then
turn the system back on.
(If equipped)
Indicates a malfunction in the PCS (Pre-Crash Safety
system)
A buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
(If equipped)
Indicates a malfunction in the BSM (Blind Spot Monitor)
system
A buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)

4997-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
(If equipped)
Indicates that LKA (Lane-Keeping Assist) system cannot
be used due to the vehicle speed being too high
→ Slow down.
Indicates that the power switch is turned off or turned to
ACCESSORY mode and the driver’s door is opened
while the lights are turned on
A buzzer also sounds.
→ Turn the lights off.
(If equipped)
Indicates that the moon roof is not fully closed (with the
power switch off, and the driver’s door open)
A buzzer also sounds.
→ Close the moon roof.
Indicates that the windows are not fully closed (with the
power switch off, and the driver’s door open)
A buzzer also sounds.
→ Close all the windows.
(If equipped)
Indicates that the windows and the moon roof are not
fully closed (with the power switch off, and the driver’s
door open)
A buzzer also sounds.
→ Close all the windows and the moon roof.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)

5267-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
WA R N I N G
■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 tire simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steeri ng, sudden braking and shifting operations
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:
■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. Failure to observe
this precaution may lead to an accid ent causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.
• ABS & Brake assist
•VSC
•TRC
• Cruise control (if equipped)
• Dynamic radar cruise control (if equipped)
• Dynamic radar cruise control with full-
speed range (if equipped)
• (Pre-Crash Safety system) (if equipped)
•EPS
•AFS (if equipped)
• LDH (if equipped)
• DRS (if equipped)
• Adaptive Variable Suspension system (if equipped) • LDA (Lane Departure Alert with
steering control) (if equipped)
• LKA (Lane-Keeping Assist) (if equipped)
• Tire pressure warning system (if equipped)
•VDIM
• VGRS (if equipped)
• Lexus parking assist monitor (if equipped)
• Lexus parking assist-sensor (if equipped)
• Navigation system (if equipped)

5848-2. Customization
GS450h_300h_OM_OM30F00E_(EE)
■LKA (Lane-Keeping Assist)*/LDA (Lane Departure Alert with steering
control)
* ( → P. 2 8 1 , 2 9 0 )
*: If equipped
■PCS (Pre-Crash Safety system)* (→ P. 2 6 9 )
*: If equipped
FunctionDefault settingCustomized
setting
Lane centering function*OffOn—O—
Steering assistOnOff—O—
Adjust alert type(Steering
vibration)(Buzzer)
—O—
Alert sensitivityHighStandard—O—
Ve h i c l e s w a y w a r n i n gOnOff—O—
Vehicle sway warning sensitivityStandardLow—O—High
123
FunctionDefault settingCustomized setting
PCS (Pre-Crash Safety system)OnOff—O—
Adjust alert timing
(Middle)
(Far)—O—
(Near)
123

605Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
DAB (Digital Audio Broadcast)*
Daytime running light system ......... 239
DefoggerFront windshield ................................. 372
Outside rear view mirrors............. 372
Rear window ........................................ 372
Differential ............................................... 574
Digital Audio Broadcast (DAB)
*
Dimensions.............................................. 566
Display 12.3-inch display ................................ 364
Drive information .................................. 113
Dynamic radar cruise control ...... 315
Dynamic radar cruise control with full-speed range....................303
Energy monitor.....................................126
LDA (Lane Departure Alert with steering control) ................... 293
LKA (Lane-Keeping Assist) .........285
Multi-information display .................... 111
Trip information ................................... 104
Warning message.............................482
Do-it-yourself maintenance .............. 415
Door courtesy lights Location................................................. 386
Wattage..................................................578
Door lock
Doors .........................................................139
Smart entry & start system ............. 153
Wireless remote control ..................134 Doors...........................................................139
Automatic door locking and
unlocking system ............................. 143
Door glasses.......................................... 193
Door lock ................................................ 142
Open door warning buzzer .......... 154
Outside rear view mirrors ..............190
Rear door child-protector ............. 143
Double locking system.......................... 89
Drive info 1/Drive info 2/ Drive info 3 ............................................. 113
Drive information .................................... 116
Drive-start control ..................... 201, 228
Driver’s seat position memory ..........178
Driving position memory ................ 179
Memory recall function ..................... 181
Power easy access system............. 178
Driving ...................................................... 200
Break-in tips........................................... 201
Correct driving posture.................... 36
Driving mode select switch.......... 330
Hybrid vehicle driving tips .............. 351
Procedures........................................... 200
Winter drive tips ................................ 354
DRS (Dynamic Rear Steering) ....... 345 Function.................................................. 345
Warning message ............................ 482
Dynamic radar cruise control ...........315
Function.................................................... 315
Warning message ............................ 482
D
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

610Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
JackPositioning the jack ............................ 418
Vehicle-equipped jack ........ 518, 529
Jack handle................................... 518, 529
Jam protection function Moon roof ...............................................197
Power trunk lid......................................149
Power window ......................................193
Keyless entry ........................................... 153 Smart entry & start system ............. 153
Wireless remote control ..................134
Keys ............................................................. 134 Battery-saving function.................... 155
Electronic key ........................................134
Engine switch......................................... 217
If the electronic key does not operate properly ........................... 548
If you lose your keys ................ 136, 137
Key number plate ................................134
Keyless entry ............................... 134, 153
Mechanical key.................................... 135
Power switch ......................................... 217
Replacing the battery.........................451
Warning buzzer ...................................154
Wireless remote control key .........134
Knee airbags.............................................. 43 Language (multi-information
display) .................................................. 582
LDH (Lexus Dynamic Handling
system)................................................... 345
Lever
Auxiliary catch lever........................... 417
Hood lock release lever .................. 417
Shift lever ................................................224
Turn signal lever................................. 230
Wiper lever .......................................... 250
Lexus Dynamic Handling system
(LDH) ..................................................... 345
Lexus parking assist monitor
*
Lexus parking assist-sensor*
Function*
Warning message ............................ 482
Lexus Safety System+......................... 260
AHS (Adaptive High-beam System) ............................................... 240
Automatic High Beam ................... 245
Dynamic radar cruise control ....... 315
Dynamic radar cruise control with full-speed range ................... 303
LDA (Lane Departure Alert with steering control)................... 290
LKA (Lane-Keeping Assist) .......... 281
PCS (Pre-Crash Safety system) ................................................ 269
RSA (Road Sign Assist) ................. 298
License plate lights .............................. 236 Light switch........................................... 236
Replacing light bulbs ....................... 465
Welcome light illumination
control ...................................................140
J
K
L

611Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
Light bulbsReplacing ...............................................459
Wattage..................................................578
Lights
AHS (Adaptive High-beam System)................................................240
Automatic High Beam system .................................................. 245
Fog light switch ................................... 249
Follow me home system ................ 237
Headlight switch................................. 236
Illuminated entry system................ 388
Interior light ........................................... 387
Interior lights list ................................. 386
Personal lights .....................................387
Replacing light bulbs........................459
Trunk light ............................................... 148
Turn signal lever .................................230
Vanity lights .......................................... 397
Wattage..................................................578
Welcome light illumination control................................................... 140
LDA (Lane Departure Alert with steering control)
Operation .............................................. 293
Warning messages...........................482
LKA (Lane-Keeping Assist) .............. 281 Operation ..............................................285
Warning messages...........................482
Lock steering column .......................... 219
Low profile tire ....................................... 436
Luggage hook ........................................ 394
Luggage security system .................... 148 Main display............................................ 364
Maintenance
Do-it-yourself maintenance ........... 415
Maintenance data ............................. 566
Maintenance requirements ............ 413
Malfunction indicator lamp ...............476
Master warning light ........................... 478
Meter .......................................................... 104 Head-up display ....................................119
Indicators .................................................. 101
Instrument panel li ght control ....... 107
Meters ....................................................... 104
Multi-information display.....................111
Warning lights ....................................... 99
Mirrors
Inside rear view mirror .................... 188
Outside rear view mirror defoggers ........................................... 372
Outside rear view mirrors ..............190
Vanity mirrors ..................................... 397
Moon roof .................................................196
Door lock linked moon roof operation.............................................. 197
Jam protection function ................... 197
Operation ............................................... 196
Warning message ............................ 482
MP3 disc
*
M
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.