2018 Lexus GS450h lane assist

4247-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
(If equipped)
Indicates a malfunction in the DRS (Dynamic Rear
Steering) A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates a malfunction in th e electronically controlled
brake system A buzzer also sounds.
→ Immediately stop the vehicle in a safe place and
contact your Lexus dealer. Continuing to drive in
this condition is dangerous.
Indicates an attempt was made to engage the parking
brake while driving
A buzzer also sounds.
→ Press the parking brake switch. If the warning mes-
sage is still displayed, have the vehicle inspected by
your Lexus dealer.
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
your Lexus dealer.
(If equipped)
Indicates that LKA (Lane-Ke eping Assist) system cannot
be used due to the vehicle speed being too high
→ Slow down.
Warning messageDetails/Actions
(U.S.A.) (Canada)

4497-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
7
When trouble arises
WARNING
■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 50 mph (80 km/h) 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 accident 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 possibilit y of personal injury during a collision or sudden brak-
ing.
NOTICE
■Be careful when driving over bumps with th e compact spare tire installed on the vehi-
cle.
The vehicle may become lower when driving with the compact spare tire compared to
when driving with standard tires. Be care ful when driving over uneven road surfaces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact your Lexus dealer as the tire pressure warning valve and transmitter
may be damaged if not handled correctly.
• ABS & Brake assist
•VSC
•TRAC
• Cruise control
• Dynamic radar cruise control with full-
speed range (if equipped)
• PCS (Pre-Collision System)
(if equipped)
•EPS
• AFS (if equipped)
• Adaptive Variable Suspension system • LKA (Lane-Keeping Assist)
(if equipped)
• Tire pressure warning system
•VDIM
• Lexus parking assist monitor
• Intuitive parking assist (if equipped)
• Navigation system
• DRS (if equipped)
• VGRS (if equipped)
• LDH (if equipped)

GS450h_OM_OM30G62U_(U)
4978-2. Customization
8
Vehicle specifications
■LKA (Lane-Keeping Assist)* (→ P. 234)
*: If equipped
■PCS (Pre-Collision System)* (→ P. 223)
*: If equipped
■BSM (Blind Spot Monitor)* (→ P. 260)
*: If equipped
FunctionDefault
settingCustomized setting
Lane centering functionOffOn—O—
Steering assist functionOnOff—O—
Adjust alert type
(Steering
vibration)(Buzzer)
—O—
Alert sensitivityStandardHigh—O—
Vehicle sway warning functionOnOff—O—
Vehicle sway warning sensitivityStandardLow—O—High
123
FunctionDefault settingCustomized setting
PCS (Pre-Collision System)OnOff—O—
Adjust alert timing
(Middle)
(Far)—O—
(Near)
123
FunctionDefaultsettingCustomized setting
BSM (Blind Spot Monitor)OnOff—O—
123

531Alphabetical index
GS450h_OM_OM30G62U_(U)
Daytime running light system ........... 201
DefoggerFront windshield .................................293
Outside rear view mirrors .............293
Rear window ........................................293
Differential ............................................... 476
Dimensions ............................................. 470
Dinghy towing........................................... 181
Display 12.3-inch display................................ 285
Drive information .................................. 97
Dynamic radar cruise control with full-speed range .................... 243
Energy monitor .................................... 109
LKA (Lane-Keeping Assist) ........ 238
Multi-information display ..................95
Trip information .................................... 88
Warning message .............................. 410
Do-it-yourself maintenance ............. 349
Door courtesy lights Location ................................................. 304
Door lock Doors ......................................................... 122
Smart access system with push-button start ............................. 135
Wireless remote control .................. 122 Doors .......................................................... 122
Automatic door locking and unlocking system .................... 125
Door glasses ......................................... 160
Door lock................................................. 124
Open door warning buzzer ..........136
Outside rear view mirrors ..............156
Rear door child-protector .............. 125
Drive info 1/Drive info 2/ Drive info 3........................................... 100 Drive information...................................97
Drive-Start Control..................... 169, 193
Driver’s seat position memory.......... 145 Driving position memory.................146
Memory recall function .................... 147
Power easy access system .............145
Driving ........................................................168 Break-in tips ...........................................169
Correct driving posture .................... 28
Driving mode select switch ..........258
Hybrid vehicle driving tips .............274
Procedures ............................................ 168
Winter drive tips ................................ 276
DRS (Dynamic Rear Steering) ........269 Function .................................................. 269
Warning message...............................410
DVD player
*
Dynamic radar cruise control with full-speed range Function .................................................. 243
Warning message...............................410
Dynamic Rear Steering (DRS) ........269 Function .................................................. 269
Warning message...............................410
D
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

536Alphabetical index
GS450h_OM_OM30G62U_(U)
Language (multi-information display) ............ 495
LATCH anchors ...................................... 58
LDH (Lexus Dynamic Handling system) .............................. 269
Lever Auxiliary catch lever .......................... 351
Hood lock release lever .................. 351
Internal trunk release lever............... 131
Shift lever ................................................. 189
Turn signal lever .................................. 195
Wiper lever ...........................................207
Lexus Dynamic Handling system (LDH)...................................... 269
Lexus Enform
*
Lexus Enform Safety Connect........ 329
Lexus parking assist monitor
*
Lexus Safety System+........................... 217 Automatic High Beam ................... 203
Dynamic radar cruise control with full-speed range .................... 243
LKA (Lane-Keeping Assist) ......... 234
PCS (Pre-Collision System) ........ 223
License plate lights...............................200 Light switch .......................................... 200
Replacing light bulbs ........................393
Welcome light illumination cont rol ..........................123
Light bulbs Replacing .................................. 392, 393
Wattage ................................................. 480 Lights
Headlight switch ................................200
Illuminated entry system.................306
Interior light...........................................305
Interior lights list..................................304
Personal lights .....................................305
Replacing light bulbs ........... 392, 393
Trunk light............................................... 130
Turn signal lever ...................................195
Vanity lights ............................................ 314
Wattage ................................................ 480
Welcome light illumination control.................................................... 123
LKA (Lane-Keeping Assist) .............234 Operation.............................................. 238
Warning messages ............................410
Load capacity .......................................... 179
Lock steering column........................... 184
Low profile tire ...................................... 368
Luggage hook ......................................... 312
Luggage security system ....................130
Main display ........................................... 285
Maintenance Do-it-yourself maintenance ......... 349
General maintenance ..................... 345
Maintenance data.............................. 470
Maintenance requirements .......... 343
L
M

537Alphabetical index
GS450h_OM_OM30G62U_(U)
Malfunction indicator lamp .............. 404
Master warning light ........................... 406
Meter ............................................................ 88Head-up display.................................. 103
Indicators...................................................84
Instrument panel light control ...........91
Meters........................................................ 88
Multi-information display ..................95
Warning lights ........................................83
Micro dust and pollen filter .............. 293
Mirrors Inside rear view mirror ..................... 154
Outside rear view mirror defoggers ...........................................293
Outside rear view mirrors .............. 156
Vanity mirrors ....................................... 314
Moon roof..................................................163 Door lock linked moon roof operation ..................... 164
Jam protection function ................... 164
Operation ............................................... 163
Warning message .............................. 410
MP3 disc
*
Multi-information display ..................... 95 Drive information .................................. 97
Dynamic radar cruise control with full-speed range .................... 243
G-force ......................................................98
LKA (Lane-Keeping Assist) ......... 234 Navigation system
*
Noise from under vehicle ........................8
Odometer .................................................. 88
Oil
Engine oil ............................................... 473
Differential oil ....................................... 476
Opener Fuel filler door........................................ 213
Hood..........................................................351
Trunk ..........................................................128
Outer foot lights Outer foot lights .................................304
Replacing light bulbs ....................... 393
Wattage ................................................ 480
Outside rear view mirrors .................. 156 Adjusting and folding ........................156
Blind Spot Monitor ........................... 260
Linked mirror function when reversing................................. 158
Mirror position memory ..................145
Outside rear view mirror defoggers............................ 293
Outside temperature display ............. 89
Overheating............................................. 461
N
O
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

540Alphabetical index
GS450h_OM_OM30G62U_(U)
Seat heaters ............................................ 302
Seat position memory...........................145
Seat ventilators ...................................... 302
Seating capacity...................................... 179
Seats.............................................................143Adjustment ............................................. 143
Adjustment precautions .................. 144
Child seats/child restraint system installation.............................. 57
Cleaning ................................................ 340
Driving position memory ................ 145
Head restraints ..................................... 150
Power easy access system ............ 145
Properly sitting in the seat ................ 28
Seat heaters ......................................... 302
Seat position memory....................... 145
Seat ventilators ................................... 302
Sensor Automatic headlight system .........202
Inside rear view mirror ..................... 155
Intuitive parking assist
*
LKA (Lane-Keeping Assist) ......... 234
Radar sensor ..............................219, 262
Rain-sensing windshield wipers ...................................................... 211
Service plug ............................................... 70
Service reminder indicators ............... 82 S-FLOW mode..................................... 288
Shift lever ...................................................189
Hybrid transmission .......................... 189
If the shift lever cannot be shifted from P ..............193
Shift lever light ....................................... 304
Shift lock system ..................................... 193
Side airbags ................................................36
Side display ............................................. 285
Side marker lights ................................ 200 Light switch...........................................200
Replacing light bulbs ....................... 393
Welcome light illumination control.................................................... 123
Side mirrors .............................................. 156 Adjusting and folding ........................156
BSM (Blind spot monitor) ............ 260
Linked mirror function when reversing................................. 158
Mirror position memory ..................145
Side turn signal lights ............................ 195 Replacing light bulbs ....................... 393
Turn signal lever ...................................195
Smart access system with push-button start ....................... 135 Antenna location..................................135
Entry functions ...................................... 122
Starting the hybrid system...............182
Warning message...............................410
Snow mode...............................................190
Snow tires ................................................ 280

541Alphabetical index
GS450h_OM_OM30G62U_(U)
Spare tire....................................................441Inflation pressure ................................ 477
Storage location ................................. 477
Spark plug ............................................... 475
Specifications ......................................... 470
Speedometer ............................................ 88
Sport mode ............................................. 258
Steering lock ........................................... 184 Column lock release ......................... 185
Steering lock system warning message ...........................439
Steering wheel ........................................ 153 Adjustment ............................................. 153
Audio switches
*
Heated steering wheel ................... 302
Power easy access system ............ 145
Steering wheel position memory.............................. 145
Stop lights Replacing light bulbs ........................393
Storage feature ..................................... 307
Storage precautions............................ 307
Stuck If the vehicle becomes stuck ....... 466
Sun shade Rear............................................................ 318
Rear door................................................ 318
Roof............................................................ 164
Sun visors ...................................................314 Switches
Audio remote control switches
*
Automatic High Beam switch ..... 203
Brake hold switch............................... 198
Cruise control switch .......... 243, 255
Door lock switches ............................. 124
Driving mode select switch ..........258
Driving position memory switches ................................................145
Emergency flashers switch ........... 396
EV drive mode switch ......................187
Garage door opener switches ................................................ 321
Heated steering wheel switch ................................................... 302
HUD (Head-up display) switches ............................................... 103
Ignition switch........................................182
Intuitive parking assist
*
Light switch...........................................200
LKA (Lane-Keeping Assist) switch ................................................... 238
Meter control switches ...................... 96
Moon roof switches ...........................163
Outside rear view mirror switches ................................................156
Paddle shift switches........................... 191
Parking brake switches ....................196
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.