
3
1 
8 
7
6
5
4
3
2
GS450h_300h_OM_OM30F92E_(EE)
3-5. Opening, closing the  
windows and moon roof 
Power windows............................ 193
Moon roof ...................................... 196 
4-1. Before driving 
Driving the vehicle .................... 200 
Cargo and luggage .................. 208
Trailer towing (vehicles  
without towing package) .....209 
Trailer towing (vehicles with  
towing package)....................... 210 
4-2. Driving procedures 
Power (ignition) switch ..............217
EV drive mode ............................ 222 
Hybrid transmission .................. 224 
Turn signal lever .......................... 231
Parking brake ..............................232
Brake Hold....................................235 
4-3. Operating the lights  
and wipers 
Headlight switch ......................... 237
AHS (Adaptive High-beam  
System)......................................... 241 
Automatic High Beam ............. 246 
Fog light switch .......................... 250 
Windshield wipers  
and washer.................................. 251 
4-4. Refueling 
Opening the fuel tank cap...... 257 
4-5. Using the driving support  
systems 
Lexus Safety System+ ............... 261
PCS (Pre-Crash Safety  
system)......................................... 270 
LKA (Lane-Keeping  
Assist)...........................................282 
RSA (Road Sign Assist)............ 291
Dynamic radar cruise  
control with full-speed 
range ............................................ 296 
Cruise control ............................ 308 
Driving mode select switch.......311 
BSM (Blind Spot Monitor) ...... 314 
•The Blind Spot Monitor 
function...................................... 319
• The Rear Crossing Traffic 
Alert function .......................... 321 
Driving assist systems...............324 
4-6. Driving tips 
Hybrid vehicle driving tips....... 331
Winter driving tips .....................334
4Driving 

5
1 
8 
7
6
5
4
3
2
GS450h_300h_OM_OM30F92E_(EE)
6-3. Do-it-yourself maintenance 
Do-it-yourself service  
precautions ................................399 
Hood ................................................ 401 
Positioning a floor jack.............402 
Engine compartment............... 403
12-volt battery............................... 412
Tires .................................................. 416
Tire inflation pressure...............429
Wheels............................................. 431 
Air conditioning filter................433 
Electronic key battery ..............435
Checking and replacing  
fuses .............................................. 437 
Light bulbs ..................................... 442 
7-1. Essential information 
Emergency flashers...................452 
If your vehicle has to be  
stopped in an 
emergency.................................453 
7-2. Steps to take in an  
emergency 
If your vehicle needs  
to be towed ................................454 
If you think something  
is wrong .......................................459 
If a warning light turns on  
or a warning buzzer 
sounds..........................................460 
If a warning message  
is displayed................................. 466 
If you have a flat tire  
(vehicles with spare tire) ..... 498 
If you have a flat tire  
(vehicles without spare 
tire) ............................................... 509 
If the hybrid system  
will not start................................523 
If the parking brake  
cannot be released.................525 
If the electronic key does  
not operate properly ............. 527 
If the 12-volt battery is  
discharged ................................ 530 
If your vehicle overheats .........535
If the vehicle becomes  
stuck.............................................. 542
7When trouble arises 

9
GS450h_300h_OM_OM30F92E_(EE) 
The installation of an RF-transmitter system  in your vehicle could affect electronic sys- tems such as:
●Multiport fuel injection system/seque ntial multiport fuel injection system
●Dynamic radar cruise control with full-speed range system
●Cruise control system
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system 
Be sure to check with any authorized Lexus re tailer or Lexus authorized repairer, or any reliable repairer for precautionary measures or  special instructions regarding installation of an RF-transmitter system. 
Further information regarding frequency ba nds, power levels, antenna positions and installation provisions for the installation of  RF-transmitters, is available on request at any authorized Lexus retailer or Lexus author ized repairer, or any reliable repairer. 
High voltage parts and cables on the hybrid vehicles emit approximately the same amount of electromagnetic waves as the conventional gasoline powered vehicles orhome electronic appliances despite  of their electromagnetic shielding. 
Unwanted noise may occur in the reception of the radio frequency transmitter (RF-trans- mitter). 
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive 
chemicals. If the vehicle is scrapped with th e airbags and seat belt pretensioners left as they are, this may cause an accident such as fire. Be sure to have the systems of the SRSairbag and seat belt pretensioner removed and disposed of by a qualified service shop or 
by any authorized Lexus retailer or Lexus au thorized repairer, or any reliable repairer before you scrap your vehicle.
Installation of an RF-transmitter system
Scrapping of your Lexus
Your vehicle contains batteries and/or accumulators. Do not discard them into the 
environment but cooperate with separate collection  (Directive 2006/66/EC). 

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 

17Pictorial index 
GS450h_300h_OM_OM30F92E_(EE)
Multi-information display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 111
Display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . .P. 111 
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 126 When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 466
Parking brake switches  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 232
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 23 2 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 335Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 462, 472
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  231
Headlight switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 237 
Headlights/front position lights/tail lights/ daytime running lights  . . . . . . .P. 237 Front fog lights/rear fog light  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 250
Windshield wiper and washer switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 251
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . P. 251 Adding washer fluid  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  411 Headlight cleaners  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 252, 254 
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 486
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 452 
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  146 
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 401 
Tilt and telescopic steering control switch. . . . . . . . . . . . . . . . . . . . . . . . . .  P. 186
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . P. 186 
Driving position memory  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 346
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . .  P. 346 
Rear window defogger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 352
Audio system*
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 148
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
4
5
6
7
8
9
10
11
12
13
14 

18Pictorial index 
GS450h_300h_OM_OM30F92E_(EE)
■Switches (Left-hand drive vehicles)
VSC OFF switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 326 
Heated steering wheel switch* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362 
Automatic High Beam switch*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 246 
Adaptive High-beam System switch* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 241 
Instrument panel light control switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 107 
Odometer/trip meter and trip meter reset butt on . . . . . . . . . . . . . . . . .  P. 107 
HUD (Head-up display) switches*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 119
Brake hold switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 235
1
2
3
4
5
6
7 

25Pictorial index 
GS450h_300h_OM_OM30F92E_(EE)
Multi-information display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 111
Display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . .P. 111 
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 126 When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 466
Parking brake switches  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 232
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 23 2 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 335Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 462, 472
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  231
Headlight switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 237 
Headlights/front position lights/tail lights/ daytime running lights  . . . . . . .P. 237 Front fog lights/rear fog light  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 250
Windshield wiper and washer switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 251
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . P. 251 Adding washer fluid  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  411 Headlight cleaners  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 252, 254 
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 486
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 452 
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  146 
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 401 
Tilt and telescopic steering control switch. . . . . . . . . . . . . . . . . . . . . . . . . .  P. 186
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . P. 186 
Driving position memory  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 346
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . .  P. 346 
Rear window defogger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 352
Audio system*
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 148
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
4
5
6
7
8
9
10
11
12
13
14 

26Pictorial index 
GS450h_300h_OM_OM30F92E_(EE)
■Switches (Right-hand drive vehicles)
Brake hold switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 235 
Odometer/trip meter and trip meter reset butt on . . . . . . . . . . . . . . . . .  P. 107 
Instrument panel light control switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 107
HUD (Head-up display) switches*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 119 
VSC OFF switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 326 
Automatic High Beam switch*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 246 
Adaptive High-beam System switch* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 241 
Heated steering wheel switch* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
1
2
3
4
5
6
7