
3
1
8 7
6
5
4
3
2
GS450h_OM_OM30E26U_(U)
9
3-5. Opening, closing the windows and moon roof
Power windows ............................. 167
Moon roof ........................................ 171
4-1. Before driving Driving the vehicle ...................... 176
Cargo and luggage.....................187
Vehicle load limits ....................... 190
Trailer towing .................................. 191
Dinghy towing ...............................192
4-2. Driving procedures Power (ignition) switch ..............193
EV drive mode ............................200
Hybrid transmission .................. 203
Turn signal lever .......................... 209
Parking brake ................................. 211
Brake Hold .....................................214
Horn ..................................................216
4-3. Operating the lights  and wipers
Headlight switch .......................... 217
Fog light switch ........................... 222
Windshield wipers  and washer ................................ 223
Headlight cleaner switch........ 230 4-4. Refueling
Opening the fuel tank cap .......231
4-5. Using the driving support  systems
Cruise control ............................. 236
Dynamic radar  cruise control............................ 240
Dynamic radar cruise control  with full-speed range............. 255
LKA  (Lane-Keeping Assist) ............ 271
Driving mode select switch .....281
Driving assist systems .............. 284
PCS  (Pre-Collision System) ...........291
BSM  (Blind Spot Monitor) .............. 301
• The Blind Spot Monitor function .................................... 305
• The Rear Cross Traffic  Alert function ........................308
Lexus night view ............................ 311
4-6. Driving tips Hybrid vehicle driving tips ....... 317
Winter driving tips .......................319
4Driving 

5
1
8 7
6
5
4
3
2
GS450h_OM_OM30E26U_(U)
9
6-3. Do-it-yourself maintenanceDo-it-yourself service precautions................................ 423
Hood ............................................... 426
Positioning a floor jack..............427
Engine compartment ............... 429
12-volt battery ............................. 439
Tires.................................................. 443
Tire inflation pressure ............... 453
Wheels ........................................... 456
Air conditioning filter ............... 458
Electronic key battery.............. 460
Checking and replacing  fuses.............................................. 462
Headlight aim ............................... 477
Light bulbs .....................................479
7-1. Essential information Emergency flashers .................. 494
If your vehicle has to be stopped in an emergency.... 495 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 496
If you think  something is wrong ................ 502
If a warning light turns on or  a warning buzzer sounds..... 503
If a warning message  is displayed ..................................513
If you have a flat tire ....................541
If the hybrid system  will not start ............................... 554
If the shift lever cannot  be shifted from P ..................... 556
If the parking brake cannot  be released .................................557
If the electronic key does not  operate properly ..................... 559
If the 12-volt battery is discharged............................. 562
If your vehicle overheats ......... 566
If the vehicle becomes  stuck ............................................... 571
7When trouble arises 

17Pictorial index
GS450h_OM_OM30E26U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 223
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 319
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . . P. 361
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 410
Fuel filler door  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  2 3 1
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 231
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 576
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . P. 443
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 582
Winter tires/tire chain  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 319
Checking/rotation/tire pressure warning system. . . . . . . . . . . . . . . . . . . . P. 443
Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 541
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . P. 426
Opening  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 426
Engine compartment cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  5 7 7
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 566
Warning messages  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 520
Headlights/parking lights/daytime running ligh ts  . . . . . . . . . . . . . . . . . . . P. 217
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Turn signal lights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  209
Tail lights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . P. 217
Stop lights
Brake Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 214 
License plate lights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 21 7
Back-up lights
Shifting the shift lever to R  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   P. 203
Side marker lights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
4
5
6
7
Light bulbs of the exterior lights for driving
( R e p l a c i n g  m e t h o d :  P.  4 7 9 ,  Wa t t s :  P.  5 8 3 )
*: If equipped
8
9
10
11
12
13
14
15 

19Pictorial index
GS450h_OM_OM30E26U_(U)
Multi-information display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 96
Display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 96
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  111
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . .P. 513
Parking brake switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 211
Applying/releasing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 211
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 320
Warning buzzer/message  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 513
Turn signal lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  209
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Headlights/parking lights/tail lights/daytime  running lights . . . . . . . . . . . P. 217
Fog lights
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Windshield wiper and washer switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 223
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  .P. 223
Adding washer fluid  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 438
Warning messages  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 530
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 494
Trunk opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  1 4 3
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426
Tilt and telescopic steering contro l switch . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 161
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P . 161
Driving position memory  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 152
Air conditioning system  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 335
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . P. 335
Rear window defogger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 360
Audio system
*2
Trunk opener main switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 144
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
4
5
6
7
8
9
10
11
12
13
14 

20Pictorial index
GS450h_OM_OM30E26U_(U)
■Switches
Headlight cleaner switch* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
VSC OFF switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 286
Instrument panel light control swit ches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 93
Odometer/trip meter and trip meter reset button  . . . . . . . . . . . . . . . . . . .P. 93
HUD (Head-up display) switches
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 104
Heated steering wheel switch
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 380
BSM (Blind Spot Monitor) main switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 301
Lexus night view switch
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 311
Brake hold switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 21 4
1
2
3
4
5
6
7
8
9 

GS450h_OM_OM30E26U_(U)
872. Instrument cluster
2
Instrument cluster
◆Outside rear view mirrors (vehicles with BSM)
Warning lights inform the driver of ma lfunctions in the indicated vehicle’s
systems.
Warning lights
*1
(U.S.A.)
Brake system warning light
(  P.  5 0 3 )*1
(U.S.A.)
ABS warning light 
( P.  5 0 4 )
*1
(Canada)
Brake system warning light
( P.  5 0 3 )*1
(Canada)
ABS warning light 
( P.  5 0 4 )
*1Charging system warning
light ( P.  5 0 4 )*1Electric power steering
system warning light
( P.  5 0 4 )
*1
(U.S.A.)
Malfunction indicator
lamp ( P.  5 0 4 )*1, 2
(if equipped)
“AFS OFF” indicator 
( P. 505)
*1
(Canada)
Malfunction indicator
lamp ( P.  5 0 4 )*1, 2Brake hold operated 
indicator ( P. 505)
*1SRS warning light 
( P.  5 0 4 )*2
(U.S.A.)
Parking brake indicator 
(  P. 505) 

88
GS450h_OM_OM30E26U_(U)
2. Instrument cluster
*1: These lights turn on when the power switch is turned to ON mode to indicate that
a system check is being performed. They will  turn off after the hybrid system is on,
or after a few seconds. There may be a ma lfunction in a system if the lights do not
come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
*2
(Canada)
Parking brake indicator 
(  P. 505)*1Master warning light 
( P.  5 0 6 )
*1
Brake system warning light
( P.  5 0 6 )*1, 2
(if equipped)
“PCS” warning light 
( P. 504, 515)
Open door warning light 
( P.  5 0 6 )*1
Slip indicator ( P. 505)
Low fuel level warning light
( P.  5 0 6 )*1Tire pressure warning light 
( P.  5 0 7 )
Seat belt reminder light
( P.  5 0 6 ) 

GS450h_OM_OM30E26U_(U)
892. Instrument cluster
2
Instrument cluster
The indicators inform the driver of the operating state of the vehicle’s vari-
ous systems. 
Indicators
Turn signal indicator 
(  P.  2 0 9 )
(if equipped)
LKA (Lane-Keeping 
Assist) indicator 
( P.  2 7 1 )
(U.S.A.)
Headlight indicator
( P.  2 1 7 )*1
(if equipped)
Intuitive parking assist indi-
cator
(Canada)
Tail light indicator
( P.  2 1 7 )  *2
(if equipped)
“AFS OFF” indicator
( P.  2 1 9 )  
Headlight high beam indi-
cator ( P.  2 1 8 )
*2, 3Slip indicator 
( P.  2 8 6 )
(if equipped)
Front fog light indicator
( P. 222)*2VSC OFF indicator 
( P.  2 8 6 )
“READY” indicator 
(  P.  1 9 3 )
*2, 4
(if equipped)
“PCS” warning light 
( P. 293) 
EV indicator ( P.  74 )
(U.S.A.)
Parking brake indicator 
(  P. 211)
Cruise control indicator 
(  P.  2 3 6 ,  2 4 0 )
(Canada)
Parking brake indicator 
( P.  2 1 1 )
(if equipped)
Radar cruise control indi-
cator ( P.  2 4 0 )*2Brake hold standby indica-
tor ( P.  2 1 4 )
Cruise control “SET” indi-
cator ( P.  2 3 6 ,  2 4 0 )
*2Brake hold operated indi-
cator ( P.  2 1 4 )