2018 Lexus GS450h fuel cap

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GS450h_OM_OM30G62U_(U)
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4-1. Before drivingDriving the vehicle ..................... 168
Cargo and luggage .................... 176
Vehicle load limits ....................... 179
Trailer towing ............................... 180
Dinghy towing ................................ 181
4-2. Driving procedures Power (ignition) switch............. 182
EV drive mode ..............................187
Hybrid transmission................... 189
Turn signal lever .......................... 195
Parking brake ................................196
Brake Hold .................................... 198
4-3. Operating the lights and wipers
Headlight switch ........................200
Automatic High Beam............. 203
Windshield wipers and washer ................................ 207 4-4. Refueling
Opening the fuel tank cap .......213
4-5. Using the driving support systems
Lexus Safety System+ ................ 217
PCS (Pre-Collision System) ......... 223
LKA (Lane-Keeping Assist) .......................................... 234
Dynamic radar cr uise control
with full-speed range............. 243
Cruise control ............................. 255
Driving mode select switch ... 258
BSM (Blind Spot Monitor) ............. 260
• The Blind Spot Monitor function .................................... 263
• The Rear Cross Traffic Alert function......................... 265
Driving assist systems .............. 268
4-6. Driving tips Hybrid vehicle driving tips ......274
Winter driving tips......................276
4Driving

15Pictorial index
GS450h_OM_OM30G62U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 207
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 276
To prevent freezing (windshield wiper de-icer)
*. . . . . . . . . . . . . . . . . . . . . . . P. 293
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 472
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 365
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 477
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 27 6
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 365
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 441
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 351
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 351
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 354
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 473
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 46 1
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 4 12
Headlights/front side marker lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 195
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 195
Tail lights/rear side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
Rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 195
Stop lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 168
Back-up light
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 189
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
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Light bulbs of the exte rior lights for driving
(Replacing method: P. 391, Watts: P. 480)
*: If equipped
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GS450h_OM_OM30G62U_(U)
4Driving
4-1. Before driving Driving the vehicle ...................... 168
Cargo and luggage .................... 176
Vehicle load limits ....................... 179
Trailer towing ................................180
Dinghy towing ............................... 181
4-2. Driving procedures Power (ignition) switch ............. 182
EV drive mode ............................. 187
Hybrid transmission ................... 189
Turn signal lever........................... 195
Parking brake ............................... 196
Brake Hold..................................... 198
4-3. Operating the lights and wipers
Headlight switch ........................ 200
Automatic High Beam ............ 203
Windshield wipers and washer.................................207 4-4. Refueling
Opening the fuel tank cap ...... 213
4-5. Using the driving support systems
Lexus Safety System+ ................ 217
PCS (Pre-Collision System) ......... 223
LKA (Lane-Keeping Assist) .......................................... 234
Dynamic radar cruise control with full-speed range ............. 243
Cruise control ............................. 255
Driving mode select switch ...258
BSM (Blind Spot Moni tor).............. 260
• The Blind Spot Monitor
function .................................... 263
• The Rear Cross Traffic Alert function ......................... 265
Driving assist systems .............. 268
4-6. Driving tips Hybrid vehicle driving tips ..... 274
Winter driving tips ..................... 276

GS450h_OM_OM30G62U_(U)
1694-1. Before driving
4
Driving
■When starting off on a uphill
The hill-start assist control is available. (→P. 269)
■For fuel-efficient driving
Keep in mind that hybrid vehicles are simila r to conventional vehicles, and it is necessary
to refrain from activities such as sudden acce leration, etc. Refer to “Hybrid vehicle driv-
ing tips”. ( →P. 274)
■Driving in the rain
●Drive carefully when it is ra ining, because visibility will be reduced, the windows may
become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, beca use the road surface will be especially slip-
pery.
●Refrain from high speeds when driving on an expressway in the rain, because there may
be a layer of water between the tires and th e road surface, preventing the steering and
brakes from operating properly.
■Restraining engine output (Brake Override System)
●When the accelerator and brake pedals are depressed at the same time, the hybrid sys-
tem output may be restrained.
●A warning message is displayed on the mult i-information display while the system is
operating. ( →P. 429)
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is pe rformed, the hybrid system output may be
restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes S) with the acce lerator pedal depressed, a warning message appears on
the multi-information display. ( →P. 417)
• When the accelerator pedal is depressed t oo much while the vehicle is in reverse.
●While Drive-Start Control is being activated, your vehicle may have trouble escaping
from the mud or fresh snow. In such case, deactivate TRAC (→P. 270) to cancel Drive-
Start Control so that the vehicle may beco me able to escape from the mud or fresh
snow.
■Breaking in your new Lexus
To extend the life of the vehicle, observin g the following precautions is recommended:
●For the first 186 miles (300 km):
Avoid sudden stops.
●For the first 621 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.

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GS450h_OM_OM30G62U_(U)4-4. Refueling
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Driving
Opening the fuel tank cap
●Turn the power switch off and ensure that all the doors and windows are
closed.
●Confirm the type of fuel.
■Fuel types
→ P. 481
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi cle has a fuel tank opening that only accom-
modates the specia l nozzle on unleaded fuel pumps.
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
WARNING
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting fr om static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fu el tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances th at are harmful if inhaled.
●Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any pe rson or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.

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GS450h_OM_OM30G62U_(U)
4-4. Refueling
With the doors unlocked, press the
center of the rear edge of the fuel
filler door.
Push until you hear a click and take your
hand away to slightly open the fuel filler
door. Then open the door fully by hand.
Turn the fuel tank cap slowly to
remove it and put it into the holder
on the fuel filler door.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel system components or the vehicle’s painted sur-
face.
Opening the fuel tank cap
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GS450h_OM_OM30G62U_(U)
2154-4. Refueling
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Driving
■When the fuel filler door cannot be opened by pressing the rearward of the fuel filler
door
After refueling, turn the fuel tank cap
until you hear a click. Once the cap
is released, it will turn slightly in the
opposite direction.
Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door until you hear a click.
When you lock the doors, the fuel filler
door will lock also.
Remove the cover inside the trunk and pull the
lever.
Closing the fuel tank cap
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GS450h_OM_OM30G62U_(U)
4-4. Refueling
■Fuel filler door lock condition
The fuel filler door may not be locked even when the vehicle’ s doors are locked in the fol-
lowing conditions:
●When operating the door lock button inside the vehicle
●When the automatic door lock ing system is operated (→P. 125)
●When the fuel filler door is closed after the vehicle’s doors are locked
WARNING
■When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle. Doing
so may cause a fire or other incident whic h may result in death or serious injury.