Page 6 of 1014

TABLE OF CONTENTS6
GS450h_300h_OM_OM30D53E_(EE)6-3. Do-it-yourself maintenance
Positioning a floor jack......735
Hood....................................800
Positioning a floor jack.......735
Positioning a floor jack.......735
12-volt battery ................... 748
Tires................................... 753
Tire inflation pressure ....... 770
Wheels............................... 772
Air conditioning filter ....... 775
Electronic key battery ....... 777
Checking and replacing
fuses..................................780
Light bulbs ........................ 800
Essential information
Emergency flashers ........... 820
If your vehicle has to be stopped
in an enargency.................8217-1. Steps to take in an emergency
If your vehicle needs to be
towed.................................822
If you think something is
wrong.................................829
If a warning light turns on or a
warning buzzer
sounds...............................830
If a warning message is dis-
played...............................838
If you have a flat tire (vehicles
with a spare tire))..............870
If you have a flat tire (vehicles
without a spare
tire)...................................884
If the hybrid system will not
start....................................902
If the shift lever cannot be
shifted from P....................904
If the parking brake cannnot be
released.............................905
If the electronic key does not
operate properly................908
If the 12-volt battery is dis-
charged.............................911
If your vehicle overheats ... 915
If the vehicle becomes
stuck.................................923
7When Trouble arises
Page 15 of 1014

15Pictorial index
GS450h_300h_OM_OM30D53E_(EE)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 434
To prevent freezing (windshield wiper de-icer)
*1 . . . . . . . . . . P. 500
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . P. 722
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 929
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 753
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 936
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 434
Checking/rotation/tire pressure warning system
*1 . . . . . . . . . P. 753
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 870, 884
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 739
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 930
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 915
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 847
Headlights/front position lights/daytime running lights . . . . . . P. 272
Front fog lights
*1/rear fog light*2. . . . . . . . . . . . . . . . . . . . . . P. 283
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 264
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Stop lights
Brake Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 269
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Back-up light
*2
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 800, Watts: P. 939)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
8
9
10
11
12
13
14
Page 19 of 1014
19Pictorial index
GS450h_300h_OM_OM30D53E_(EE)Driving position memory switches . . . . . . . . . . . . . . . . . . . . . . P. 198
Outside rear view mirror switches . . . . . . . . . . . . . . . . . . . . . . P. 211
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 183
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 215
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 215
PCS OFF switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 404
Tire pressure warning reset switch
*. . . . . . . . . . . . . . . . . . . . . P. 756
AFS OFF switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 274
*: If equipped
1
2
3
4
5
6
7
8
Page 27 of 1014
27Pictorial index
GS450h_300h_OM_OM30D53E_(EE)AFS OFF switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 274
Tire pressure warning reset switch . . . . . . . . . . . . . . . . . . . . . . P. 756
PCS OFF switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 404
Outside rear view mirror switches . . . . . . . . . . . . . . . . . . . . . . P. 211
Driving position memory switches . . . . . . . . . . . . . . . . . . . . . . P. 198
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 215
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 215
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 183
*: If equipped
1
2
3
4
5
6
7
8
Page 103 of 1014
1021-3. Theft deterrent system
GS450h_300h_OM_OM30D53E_(EE)
Tilt sensor detection considerations (if equipped)
The sensor may trigger the alarm in the following situations:
The vehicle is transported by a ferry, trailer, train, etc.
The vehicle is parked in a parking garage.
The vehicle is inside a car wash that moves the vehicle.
Any of the tires loses air pressure.
The vehicle is jacked up.
An earthquake occurs or the road caves in.
NOTICE
To ensure the intrusion sensor function correctly
Installing accessories other than genuine Lexus parts or leaving objects
between the driver’s seat and front passenger’s seat may reduce the detec-
tion performance.
To ensure that the sensors operate prop-
erly, do not touch or cover them.
Do not spray air fresheners or other
products directly into the sensor holes.
Page 107 of 1014

1062. Instrument cluster
GS450h_300h_OM_OM30D53E_(EE)
*1: These lights turn on when the power switch is turned to ON mode to indi-
cate 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 malfunction in
a system if the lights do not come on, or turn off. Have the vehicle
inspected by any authorized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
*2: The light flashes to indicate a malfunction.
The indicators inform the driver of the operating state of the vehi-
cle’s various systems.
Open door warning light
(P. 833)*1Master warning light
(P. 833)
Low fuel level warning
light (P. 8 3 3 )
*1
(if
equipped)
Tire pressure warning
light
(P. 834)
Seat belt reminder light
(P. 833)
Indicators
Turn signal indicator
(P. 264)
(if
equipped)
Automatic High Beam
indicator (P. 277)
Tail light indicator
(P. 272)
(if
equipped)
Front fog light indicator
(P. 283)
Headlight high beam
indicator (P. 272)Rear fog light indicator
(P. 283)
Page 115 of 1014

1142. Instrument cluster
GS450h_300h_OM_OM30D53E_(EE)
Multi-information display
The multi-information display presents the driver with a variety of
driving-related data including the current outside air temperature.
Energy monitor (P. 131)
Outside temperature display
(P. 115)
Trip information (P. 115)
Displays driving range, fuel con-
sumption and other cruising
related information
Tire inflation pressure (if equipped) (P. 117)
Drive monitor (P. 117)
Lexus parking assist-sensor display* (if equipped) (P. 347)
Dynamic radar cruise control display* (if equipped) (P. 302)
Dynamic radar cruise control with full-speed range display*
(if equipped) (P. 318)
LKA (Lane-Keeping Assist) display* (if equipped) (P. 339)
Warning messages (P. 838)
Automatically displayed when a malfunction occurs in one of the vehicle’s
systems. Display can be switched by pressing the “DISP” button. (P.
115)
*: Automatically displayed when the system is used. Display can be
switched by pressing the “DISP” button. (P. 115)
Display contents
Page 118 of 1014
1172. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30D53E_(EE)
Tire inflation pressure (if equipped)
Outside temperature, average
fuel consumption after refueling
or driving range can be selected
and displayed.
If displayed on the drive moni-
tor, other trip information or
warning messages can be dis-
played simultaneously.
For display and selection proce-
dures, follow the “Setting up the
displays”.
The information displayed on the
drive monitor will not be displayed
on the trip information screen.
Displays inflation pressure of each tire
For the vehicles with a compact spare tire: The
inflation pressure of the spare tire will not be dis-
played.
Drive monitor