2019 LEXUS GS300H lane assist

4787-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates a malfunction in the LKA (Lane-Keeping Assist) system
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
The operation conditions of the camera sensor (tem- perature, 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• RSA (Road Sign Assist)
• Dynamic radar cruise control with full-speed range • Dynamic radar cruise control• 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- sorA 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 onthe windshield in front of the camera sensor.
The following systems will be temporarily unusable. • PCS (Pre-Crash Safety system)• LKA (Lane-Keeping Assist) system
• RSA (Road Sign Assist) • Dynamic radar cruise control with full-speed range• Dynamic radar cruise control
• 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.
Warning messageDetails/Actions
(Flashes)
(Flashes)

4807-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates a malfunction in the DRS (Dynamic Rear
Steering) A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
Indicates a malfunction in the electronically controlledbrake system
A buzzer also sounds.  Immediately stop the vehicle in a safe place and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer. Con- tinuing to drive in this condition is dangerous.
Indicates an attempt was made to engage the parkingbrake while driving
A buzzer also sounds.  Press the parking brake switch. If the warning mes- sage is still displayed, have the vehicle inspected by
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Indicates a malfunction in the parking brake system
A buzzer also sounds.  Press the parking brake switch. If the warning mes- sage is still displayed, have the vehicle inspected by
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
(If equipped)
Indicates that LKA (Lane-Keeping Assist) system cannotbe used due to the vehicle speed being too high Slow down.
Warning messageDetails/Actions

5077-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■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 steerin g, 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 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) • 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)

5648-2. Customization
GS450h_300h_OM_OM30F92E_(EE)
■LKA (Lane-Keeping Assist)* ( P. 282)
*: If equipped
■PCS (Pre-Crash Safety system)* (P. 270)
*: If equipped
FunctionDefault settingCustomized
setting
Lane centering functionOffOn—O—
Steering assistOnOff—O—
Adjust alert type(Steering
vibration)(Buzzer)
—O—
Alert sensitivityStandardHigh—O—
Vehicle sway warningOnOff—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

585Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
DAB (Digital Audio Broadcast)*
Daytime running light system ......... 240
Defogger
Front windshield ................................. 352
Outside rear view mirrors............. 352
Rear window ........................................ 352
Differential ...............................................554
Digital Audio Broadcast (DAB)*
Dimensions.............................................. 546
Display
12.3-inch display ................................ 344
Drive information .................................. 113
Dynamic radar cruise control
with full-speed range.................... 296
Energy monitor.....................................126
LKA (Lane-Keeping Assist) .........286
Multi-information display .................... 111
Trip information ................................... 104
Warning message.............................466
Do-it-yourself maintenance .............399
Door courtesy lights
Location..................................................366
Wattage................................................. 558
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.......................... 90
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......................................... 202
Correct driving posture.................... 36
Driving mode select switch.............. 311
Hybrid vehicle driving tips .............. 331
Procedures........................................... 200
Winter drive tips ................................ 334
DRS (Dynamic Rear Steering) ....... 325
Function.................................................. 325
Warning message ............................ 466
D
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.

590Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Jack
Positioning the jack ...........................402
Vehicle-equipped jack .......... 499, 511
Jack handle..................................... 499, 511
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 ............................ 527
If you lose your keys ................ 136, 137
Key number plate ................................134
Keyless entry ............................... 134, 153
Mechanical key.................................... 135
Power switch ......................................... 217
Replacing the battery.......................435
Warning buzzer ...................................154
Wireless remote control key .........134
Knee airbags.............................................. 43
Language (multi-information
display) .................................................. 562
LDH (Lexus Dynamic Handling
system)................................................... 325
Lever
Auxiliary catch lever........................... 401
Hood lock release lever .................. 401
Shift lever ................................................ 224
Turn signal lever................................... 231
Wiper lever ............................................ 251
Lexus Dynamic Handling system
(LDH) ..................................................... 325
Lexus parking assist monitor*
Lexus parking assist-sensor*
Function*
Warning message ............................ 466
Lexus Safety System+........................... 261
AHS (Adaptive High-beam
System) ................................................. 241
Automatic High Beam ................... 246
Dynamic radar cruise control
with full-speed range ................... 296
LKA (Lane-Keeping Assist) ........ 282
PCS (Pre-Crash Safety
system) ................................................ 270
RSA (Road Sign Assist) ................... 291
License plate lights .............................. 237
Light switch............................................ 237
Replacing light bulbs ....................... 449
Welcome light illumination
control ................................................... 140
J
K
L

591Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Light bulbs
Replacing ............................................... 443
Wattage................................................. 558
Lights
AHS (Adaptive High-beam
System).................................................. 241
Automatic High Beam
system .................................................. 246
Fog light switch ...................................250
Follow me home system ................238
Headlight switch................................. 237
Illuminated entry system................ 368
Interior light ........................................... 367
Interior lights list ..................................366
Personal lights ..................................... 367
Replacing light bulbs........................ 443
Trunk light ............................................... 148
Turn signal lever ................................... 231
Vanity lights .......................................... 377
Wattage................................................. 558
Welcome light illumination
control................................................... 140
LKA (Lane-Keeping Assist) .............282
Operation ..............................................286
Warning messages...........................466
Lock steering column .......................... 219
Low profile tire .......................................420
Luggage hook ........................................ 374
Luggage security system .................... 148
Main display............................................ 344
Maintenance
Do-it-yourself maintenance ......... 399
Maintenance data ............................. 546
Maintenance requirements .......... 397
Malfunction indicator lamp .............. 460
Master warning light ........................... 462
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 .......................................... 352
Outside rear view mirrors ..............190
Vanity mirrors ...................................... 377
Moon roof .................................................196
Door lock linked moon roof
operation.............................................. 197
Jam protection function ................... 197
Operation ............................................... 196
Warning message ............................ 466
MP3 disc*
M
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.

592Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Multi-information display ...................... 111
Audio system-linked ............................. 111
Drive information .................................. 113
Dynamic radar cruise control
with full-speed range.................... 296
G-force...................................................... 114
LKA (Lane-Keeping Assist) ......... 282
Navigation system-linked................... 111
Settings....................................................... 115
Switch settings........................................ 115
Switching the display ...........................112
nanoe  system ..................................... 356
Navigation system*
Odometer................................................. 105
Oil
Differential oil .......................................554
Engine oil .............................................. 550
Opener
Fuel filler door...................................... 257
Hood ......................................................... 401
Trunk ..........................................................146
Outer foot lights
Location..................................................366
Replacing light bulbs........................ 445
Wattage................................................. 558
Outside rear view mirrors ................. 190
Adjusting and folding ........................190
BSM (Blind Spot Monitor) ............. 314
Linked mirror function
when reversing ...................................191
Mirror position memory .................. 178
Outside rear view mirror
defoggers ......................................... 352
Outside temperature display ........... 105
Overheating ........................................... 535
Paddle shift switches ........................... 226
Parking assist sensors*
Parking brake......................................... 232
If the parking brake cannot
be released ....................................... 525
Operation ..............................................232
Parking brake engaged
warning buzzer............................... 466
Parking brake engaged
warning message .......................... 466
PCS
(Pre-Crash Safety system)............ 270
Function.................................................. 270
Warning light......................................... 461
Warning message ............................ 466
Personal lights........................................ 367
Pollen removal mode.......................... 352
Power control unit .................................. 80
N
O
P