
15Pictorial index 
GS450h_300h_OM_OM30F92E_(EE)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 251
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 334 
To prevent freezing (windshield wiper de-icer)*1 . . . . . . . . . . . . . . . . . . . . . .  P. 352 Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 392
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 257
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 257 Fuel type/fuel tank capacity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 549
Tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .  P. 416
Tire size/inflation pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 555 Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 33 4 
Checking/rotation/tire pressure warning system*1. . . . . . . . . . . . . . . . . . . . . P. 416 Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 498, 509
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . .  P. 401
Opening  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 401 Engine compartment cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 405Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . .  P. 550 
Coping with overheat  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 535 Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 468
Headlights/front position lights/daytime running lights  . . . . . . . . . . . P. 237 
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 231 
Front fog lights/rear fog light*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 250 
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 231 
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . P. 237 
Stop lights
Emergency brake signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 325
Rear turn signal lights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 231
Back-up light*2
Shifting the shift lever to R  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 224
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 237
4
5
6
7
Light bulbs of the exterior lights for driving 
(Replacing method: P. 442, Watts: P. 558)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
8
9
10
11
12 

231
4 
4-2. Driving procedures
Driving
GS450h_300h_OM_OM30F92E_(EE)
Turn signal lever
The lever will return to its original position immediately after operation. 
Right turn 
Lane change to the right (move the 
lever partway and release it)
The right hand signals will flash 3 times.
Lane change to the left (move the 
lever partway and release it)
The left hand signals will flash 3 times.
Left turn
■If the turn signals do not stop flashing af ter turning left or right, or if you want 
to stop them flashing  
Operate the lever in the opposite direction to either position   or  .  
If you move the lever to either position   or  , the selected turn signals will 
flash.
■Turn signals can be operated when 
The power switch is in ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing before a lane change has been performed 
Operate the lever again.
Operating instructions
1
2
3
4
23
14 

4426-3. Do-it-yourself maintenance 
GS450h_300h_OM_OM30F92E_(EE)
Light bulbs
Check the wattage of the light bulb to be replaced. ( P. 558) 
 P. 405 
Front turn signal light (vehicles with single-beam headlights) 
Outer foot light
You may replace the following bulbs by yourself. The difficulty level of replace- 
ment varies depending on the bulb. As  there is a danger that components may 
be damaged, we recommend that replacement is carried out by any autho- 
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Preparing for light bulb replacement
Removing the engine compartment covers
Bulb locations
1
2 

443 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
■Front turn signal light (vehicles with single-beam headlights) 
For the left side only: Remove the 
bolt and move the washer fluid 
filler opening. 
Turn the bulb base counterclock- 
wise. 
Remove the light bulb.
Replacing light bulbs
1
2
3 

449 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
■Replacing the following bulbs 
If any of the lights listed below has burnt out, have it replaced by any autho- 
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●Headlights
●Front position lights/daytime running lights
●Front fog lights
●Front turn signal lights (vehicles with triple-beam headlights)
●Side turn signal lights
●Stop/tail lights
●Stop lights
●Rear fog light
●Rear turn signal lights
●Back-up lights
●High mounted stoplight
●License plate lights
■LED Lights 
The lights other than the front turn signal lig ht (vehicles with single-beam headlights) and outer foot lights each consist of a number of  LEDs. If any of the LEDs burn out, take your 
vehicle to any authorized Lexus retailer or  Lexus authorized repairer, or any reliable repairer to have the light replaced.
■Condensation build-up on the inside of the lens 
Temporary condensation build-up on the inside  of the headlight lens does not indicate a malfunction. Contact any authorized Lexus reta iler or Lexus authorized repairer, or any reliable repairer for more information in the following situations:
●Large drops of water have built  up on the inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs 
 P. 441 

5588-1. Specifications 
GS450h_300h_OM_OM30F92E_(EE)
Light bulbs
Light bulbsWType
ExteriorFront turn signal lights*21A
Outer foot lights5B
InteriorVanity lights8B
Trunk light3.8B
A: Wedge base bulbs (amber) 
B: Wedge base bulbs (clear)
*:  Vehicles with single-beam headlights 

587Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Engine coolant temperature  
gauge....................................................... 105 
Engine oil..................................................406 
Capacity ................................................ 550 
Checking .............................................. 406 
Oil level warning message ...........466 
Oil pressure warning  
message..............................................466 
Preparing and checking  
before winter .................................... 334 
Engine switch ...........................................217 
Auto power off function ...................219 
Changing the power switch  
modes ................................................... 218 
If your vehicle has to be  
stopped in an emergency..........453 
Starting the hybrid system............... 217 
EPS (Electric Power Steering)........ 325 
Function .................................................. 325 
Warning light .........................................461 
Warning message.............................466 
EV drive mode ....................................... 222 
First-aid kit storage net....................... 375 
Flat tire 
Vehicles with spare tire ................. 498 
Vehicles without spare tire .......... 509 
Floor mats ................................................... 34 
Fluid 
Brake........................................................554 
Hybrid transmission .........................553 
Washer ...................................................... 411 
Fog lights .................................................. 250 
Replacing light bulbs ....................... 449 
Switch ...................................................... 250 
Follow me home system .................... 238 
Footwell light .......................................... 366 
Front air conditioning system .......... 346 
Front fog lights ....................................... 250 
Replacing light bulbs ....................... 449 
Switch ...................................................... 250 
Wattage ................................................. 449 
Front personal lights............................ 367 
Front position lights ............................. 237 
Light switch............................................ 237 
Replacing light bulbs ....................... 449 
Welcome light illumination  
control ................................................... 140 
Front seats ................................................. 175 
Adjustment ............................................. 175 
Cleaning ................................................ 394 
Correct driving posture.................... 36 
Driving position memory ................ 178 
Head restraints .....................................183 
Power easy access system............. 178 
Seat heaters.......................................... 362 
Seat position memory ....................... 178 
Seat ventilators ................................... 362 
Front turn signal lights ..........................231 
Replacing light bulbs ........... 443, 449 
Turn signal lever................................... 231 
Wattage .................................................558
F
*: 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