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
4364-6. Driving tips
GS450h_300h_OM_OM30D53E_(EE)
Vehicles with front and rear tires of the same size except for the
vehicles with LDH and 19 inch tires
Use the correct tire chain size when mounting the tire chains.
Chain size is regulated for each tire size.
Side chain
(3 mm [0.12 in.] in diameter)
Cross chain
(4 mm [0.16 in.] in diameter)
Vehicles with front and rear tires of differing sizes and vehicles
with LDH and 19 inch tires
Tire chains cannot be mounted.
Snow tires should be used instead.
Regulations regarding the use of tire chains vary depending on
location and type of road. Always check local regulations before
installing chains.
Selecting tire chains
1
2
Regulations on the use of tire chains
7746-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Wheels
When replacing wheels, care should be taken to ensure that they are
equivalent to those removed in load capacity, diameter, rim width
and inset
*.
Replacement wheels are available at any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
*: Conventionally referred to as “off-
set”.
Lexus does not recommend using the following:
Wheels of different sizes or types
Used wheels
Bent wheels that have been straightened
Steel wheels (except for vehicles with a steel spare wheel)
If a wheel is bent, cracked or heavily corroded, it should be
replaced. Otherwise, the tire may separate from the wheel or cause
a loss of handling control.
Wheel selection
8987-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
In the following cases, the tire cannot be repaired with the emergency tire
puncture repair kit. Contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
When the tire is damaged due to driving without sufficient air pressure
When the tire lost air pressure due to a crack or damage in the tire sidewall
When the tire is visibly separated from the wheel
When the cut or damage to the tread is 4 mm (0.16 in.) long or more
When the wheel is damaged
When two or more tires have been punctured
When there is more than one hole or cut in the damaged tire
When the sealant has expired
Emergency tire puncture repair kit
The sealant has a limited lifespan. The expiry date is shown on the bottle.
The sealant should be replaced before the expiry date. Contact any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional for replacement.
The sealant stored in the emergency tire puncture repair kit can be used only
once to temporarily repair a single tire. If the sealant has been used and
need to be purchased, contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
The sealant can be used when the outside temperature is from -40 C (-40
F) to 60 C (140 F).
The repair kit is exclusively designed for size and type of tires originally
installed on your vehicle. Do not use it for tires that a different size than the
original ones, or for any other purposes.
If the sealant gets on your clothes, it may stain.
If the sealant adheres to a wheel or the surface of the vehicle body, the stain
may not be removable if it is not cleaned at once. Immediately wipe away
the sealant with a wet cloth.
During operation of the repair kit, a loud operation noise is produced. This
does not indicate a malfunction.
Do not use the emergency tire puncture repair kit to check or to adjust the
tire pressure.
9368-1. Specifications
GS450h_300h_OM_OM30D53E_(EE)
Type A
*1: 5 passengers and full loaded
*2: “For optimizing fuel economy, ECO tire pressure is recommended. Tire
pressure affects traveling comfort, road noise and steering characteristics.”
Tires and wheels
Tire size225/50R17 94W
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)
Vehicle speed
Front tire
kPa (kgf/cm2
or bar, psi)
Rear tire
kPa (kgf/cm2
or bar, psi)
More than 210 km/
h
(132 mph)270 (2.7,
39)
*1
260 (2.6, 38)
300 (3.0,
44)
*1
280 (2.8, 41)
From 160 km/h
(100
mph) to 210 km/h
(132 mph)
240 (2.4, 35)
260 (2.6,
38)
*1
240 (2.4, 35)
Normal pressure:
160 km/h
(100 mph)
or less
240 (2.4, 35)
ECO pressure*2:
160 km/h
(100 mph)
or less
270 (2.7, 39)270 (2.7, 39)
Wheel size17 7 1/2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
937
8 8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30D53E_(EE)
Type B
*: 5 passengers and full loaded
Type C
Tire size235/45R18 94Y
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)
Vehicle speed
Front tire
kPa (kgf/cm2
or bar, psi)
Rear tire
kPa (kgf/cm2
or bar, psi)
More than 210 km/
h
(132 mph)
240 (2.4, 35)
270 (2.7, 39)*
240 (2.4, 35)
From 160 km/h
(100
mph) to 210 km/h
(132 mph)
240 (2.4, 35)
160 km/h (100
mph)
or less
Wheel size18 8J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire size235/40R19 96Y XL
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)
Vehicle speed
Front tire
kPa (kgf/cm2
or
bar, psi)
Rear tire
kPa (kgf/cm2
or
bar, psi)
More than 210 km/
h
(132 mph)250 (2.5, 36)*
240 (2.4, 35)290 (2.9, 42)*
260 (2.6, 38)
From 160 km/h
(100
mph) to 210 km/h
(132 mph)
240 (2.4, 35)260 (2.6, 38)*
250 (2.5, 36)
160 km/h (100
mph)
or less
939
8 8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30D53E_(EE)
Type D
*: 5 passengers and full loaded
Compact spare tire (if equipped)
When towing a trailer
Add 20.0 kPa (0.2 kgf/cm
2 or bar, 3 psi) to the recommended tire inflation
pressure and drive at speeds below 100 km/h (62 mph).
Tire size235/40R19 96Y XL (front) and 265/35R19 94Y (rear)
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)
Vehicle speed
Front tire
kPa (kgf/cm2
or
bar, psi)
Rear tire
kPa (kgf/cm2
or
bar, psi)
More than 210 km/
h
(132 mph)250 (2.5, 36)*
240 (2.4, 35)270 (2.7, 39)*
250 (2.5, 36)
From 160 km/h
(100
mph) to 210 km/h
(132 mph)
240 (2.4, 35)250 (2.5, 36)
160 km/h (100
mph)
or less
Wheel size19 8J (235/40R19), 19 9J (265/35R19)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire sizeT155/70D17 110M, T145/70D18 107M
Tire inflation pressure
(Recommended cold
tire
inflation pressure)
420 kPa (4.2 kgf/cm2 or bar, 60 psi)
Wheel size17 4T (T155/70D17), 18 4T (T145/70D18)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
974Alphabetical index
GS450h_300h_OM_OM30D53E_(EE)
Power control unit coolant ........744
Capacity ................................933
Checking ...............................744
Preparing and checking before
winter .................................434
Power easy access system .........199
Power outlets .............................700
Power steering ...........................398
Warning light........................833
Warning message..................845
Power switch .............................246
Power trunk lid ..........................187
Power windows .........................215
Door lock linked window
operation.............................217
Jam protection function ........216
Operation ..............................215
Window lock switch .............215
Pre-Crash Safety system (PCS) .406
Function ................................406
PCS OFF switch ...................408
Warning light........................833
Warning message..842, 855, 862
Radar cruise control (dynamic
radar cruise control) ........302, 319
Radiator .....................................747
Radio .........................................527
Radio Data System (RDS) ........532
Rear air conditioning system .....496
Rear door sunshades ..................712Rear fog light ............................ 283
Replacing light bulb............. 818
Switch .................................. 283
Rear personal lights .................. 685
Rear seat heaters ....................... 704
Rear sunshade ........................... 712
Operation ............................. 712
Reverse operation feature .... 713
Rear turn signal lights............... 267
Replacing light bulbs ........... 811
Turn signal lever .................. 267
Wattage ................................ 940
Rear view mirror
Inside rear view mirror ........ 208
Outside rear view mirrors .... 211
Rear view monitor system ........ 361
Rear window defogger ............ 501
Refueling .................................. 293
Capacity ............................... 929
Fuel types............................. 929
Opening the fuel tank cap .... 295
When the fuel filler door
cannot be opened ............... 296
Regenerative braking.................. 82
Remote Touch .......................... 442
Remote Touch screen .............. 445
Replacing
Electronic key battery .......... 779
Fuses .................................... 782
Light bulbs ........................... 803
Tires ..................................... 871
Road accident cautions ............... 88
R