
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 

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 

4506-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after turning off the lights.  
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is unavoid- able to hold the glass portion, use and hold with a clean dry cloth to avoid getting 
moisture and oils on the bulb.  Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to  secure them. Failure to do so may result 
in heat damage, fire, or wate r entering the headlight unit. This may damage the head- lights or cause condensation to build up on the lens.
■To prevent damage or fire 
●Make sure bulbs are fully seated and locked. 
●Check the wattage of the bulb before installing to prevent heat damage.
NOTICE
■When replacing the outer foot lights 
If the front window is stopping you from  conducting the replace operation properly, open the window on the side you are working on to allow you enough space to work. 
Continuing the operation without giving yourself enough space to work could lead you to scratch the vehicle. 

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 

583Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Approach warning 
Dynamic radar cruise control  
with full-speed range....................302 
Armrest.................................................... 380 
Ashtrays .................................................... 378 
Assist grips ............................................. 383 
Audio input*
Audio system*
Automatic headlight leveling  
system ...................................................240 
Automatic High Beam ....................... 246 
Automatic light control system  ...... 237 
AUX port*
Auxiliary boxes ...................................... 373
AVS (Adaptive Variable  
Suspension system) .......................... 325 
Back-up light 
Replacing light bulb .......................... 443 
Wattage................................................. 558 
Battery (12-volt battery)...................... 412 
If the 12-volt battery is  
discharged........................................ 530 
Preparing and checking  
before winter .................................... 334 
Warning light ...................................... 460 
Battery (traction battery)..................... 80 
Blind Spot Monitor (BSM)  ................314 
Blind Spot Monitor function .......... 319 
Rear Crossing Traffic  
Alert function...................................... 321 
Bluetooth®*
Brake
Brake Hold ........................................... 235 
Fluid .......................................................... 554 
Parking brake .......................................232 
Regenerative braking..........................78 
Warning light........................... 460, 462 
Warning message ............................ 466 
Brake assist  ............................................ 324 
Brake Hold .............................................. 235 
Break-in tips ........................................... 202 
Brightness control 
Instrument panel li ght control ....... 107 
BSM (Blind Spot Monitor) .................314 
Blind Spot Monitor function .......... 319 
Rear Crossing Traffic  
Alert function...................................... 321 
Card key ....................................................134 
Care ............................................... 390, 394 
Aluminum wheels................................ 391 
Exterior ................................................... 390 
Interior..................................................... 394 
Seat belts ............................................... 395
B
C
*: Refer to the “NAVIGATION AND MULTIMEDIA 
SYSTEM OWNER’S MANUAL”. 

588Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Fuel ............................................................. 257 
Capacity .................................................549 
Fuel gauge.............................................. 105 
Information ........................................... 559 
Refueling ................................................ 257 
Type ........................................................  549 
Warning light ....................................... 462 
Warning messages...........................466 
Fuel consumption 
Average fuel consumption .............. 113 
Average fuel consumption  
after refueling ...................................... 113 
Current fuel consumption................ 113 
Fuel filler door ........................................ 257 
Refueling ................................................ 257 
When the fuel filler door  
cannot be opened ......................... 259 
Fuses .......................................................... 437 
Gauges ...................................................... 104 
Glove box ................................................ 370 
Glove box light ...................................... 370 
Grille Shutter system 
Warning message.............................466 
Hands-free system  
(for cellular phone)*
Head restraints ....................................... 183
Headlight cleaner...................... 252, 254 
Headlights ............................................... 237 
Adaptive Front-lighting  
System (AFS)................................... 239 
AHS (Adaptive High-beam  
System) ................................................. 241 
Automatic High Beam  
system.................................................. 246 
Follow me home system................ 238 
Headlight leveling warning  
message ............................................. 466 
Light switch............................................ 237 
Replacing light bulbs ....................... 449 
Head-up display....................................... 119 
Heated steering wheel.........................361 
Heaters ..................................................... 346 
Air conditioning system ................. 346 
Heated steering wheel ................... 362 
Outside rear view mirrors ............ 352 
Seat heaters.......................................... 362 
High-voltage components .................. 80 
Hood........................................................... 401 
Open ......................................................... 401 
Warning message ............................ 466
G
H