2015 Lexus GS300h tire pressure

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GS450h_300h_OM_OM30F00E_(EE)
6-3. Do-it-yourself maintenanceDo-it-yourself service precautions ................................. 415
Hood .................................................417
Positioning a floor jack .............. 418
Engine compartment................. 419
12-volt battery..............................428
Tires ..................................................432
Tire inflation pressure................ 445
Wheels............................................ 447
Air conditioning filter................ 449
Electronic key battery ............... 451
Checking and replacing fuses ..............................................453
Light bulbs .....................................458
7-1. Essential information Emergency flashers...................468
If your vehicle has to be stopped in an
emergency ................................. 469 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................ 470
If you think something is wrong ....................................... 475
If a warning light turns on or a warning buzzer
sounds...........................................476
If a warning message is displayed.................................482
If you have a flat tire (vehicles with spare tire)........................... 517
If you have a flat tire (vehicles without spare tire) ...................528
If the hybrid system will not start................................543
If the shift lever cannot be shifted from P ............................545
If the parking brake cannot be released .................546
If the electronic key does not operate properly .................... 548
If the 12-volt battery is discharged .................................. 551
If your vehicle overheats .........556
If the vehicle becomes stuck..............................................563
7When trouble arises

15Pictorial index
GS450h_300h_OM_OM30F00E_(EE)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 250
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 354
To prevent freezing (windshield wiper de-icer)
*1. . . . . . . . . . . . . . . . . . . . . . . . P. 372
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 408
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 569
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 432
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 575
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 54
Checking/rotation/tire pressure warning system
*1 . . . . . . . . . . . . . . . . . . . . . P. 432
Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 517, 528
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 417
Engine compartment cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 421
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 570
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 556
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 48 4
Headlights/front position lights/daytime running lights . . . . . . . . . . . . P. 236
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Front fog lights/rear fog light
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 249
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
Stop lights
Emergency brake signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 345
Rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Back-up light
*2
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
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5
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Light bulbs of the exterior lights for driving
(Replacing method: P. 458, Watts: P. 578)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
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951-3. Theft deterrent system
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GS450h_300h_OM_OM30F00E_(EE)
For safety and security
■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 detection performance.
●To ensure that the sensors operate properly,
do not touch or cover them.
●Do not spray air fresheners or other products
directly into the sensor holes.

992. Instrument cluster
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Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
Warning lights inform the driver of malfunctions in the indicated vehicle’s sys-
tems.
Wa r n i n g l i g h t s
*1
Brake system warning light
(→ P. 4 76 )
*2, 3
(If equipped)
“AFS OFF” indicator
(→ P. 4 7 8 )
*2, 4Charging system warning
light ( →P. 4 76 )*1, 3Brake hold operated
indicator ( →P. 4 7 8 )
*2Malfunction indicator
lamp ( →P. 4 76 )*3Parking brake indicator
(→ P. 4 7 8 )
*2SRS warning light
(→ P. 4 76 )*1Brake system warning light
(→ P. 4 7 8 )
*1ABS warning light
(→ P. 477)Low fuel level warning light
(→ P. 4 7 8 )
*2Electric power steering
system warning light
(→ P. 477)Seat belt reminder light
(→ P. 4 7 8 )
*2, 3
(If equipped)
PCS (Pre-Crash Safety
system) warning light
(→ P. 477)*2
Master warning light
(→ P. 4 7 8 )
*1
Slip indicator ( →P. 477)
*2
(If equipped)
Tire pressure warning light
(→ P. 4 7 9 )

1142. Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
■Energy monitor
→P. 1 2 6
■G-forces
Displays lateral G-forces on the vehicle
Also displays, around the periphery of the G-force display, the left and right
steering amount, accelerator pedal input, and brake fluid pressure
Acceleration G-force on the
vehicle
Current G-force value (analyzed
value of front/rear and left/right
G-forces)
Accelerator pedal input
Brake fluid pressure
Record of the maximum G-forces
Steering amount
Actual vehicle conditions may differ from the displayed information depending on
road conditions, temperature, vehicle speed and other factors.
Use this information as reference.
●Resetting the record of maximum G-forces
Press and hold to reset the record.
●Peak hold function (F SPORT models)
If lateral G-forces of 0.5 G or greater are generated, the G-force value
display will turn amber and be held for 2 seconds.
■Tire inflation pressure (vehicles with the tire pressure warning system)
Displays inflation pressure of each tire.
The inflation pressure of the compact spare tire will not be displayed.
■LDA (Lane Departure Alert with steering control) vehicle sway warning (if
equipped)
→P. 2 9 0
■LKA (Lane-Keeping Assist) vehi cle sway warning (if equipped)
→ P. 2 8 1
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1152. Instrument cluster
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Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
■Display off
A blank screen is displayed
*1: Displayed when the item is set in “Drive Info 1”, “Drive Info 2” or “Drive Info 3”.
( → P. 5 8 2 )
*2: The function can be reset by pressing the of the meter control switches for longer
than 1 second when the item to reset is displayed.
If there is more than one item that can be reset, the item selection screen will appear.
The settings of the following items can be changed, refer to P. 581
For functions that can be enabled or disabled, the function switches between on and
off each time is pressed.
■ (Lane Departure Alert with steering control) (if equipped)
(→ P. 2 9 0 )
■ (Lane-Keeping Assi st) (if equipped) ( →P. 281)
■ (Pre-Crash Safety system) (if equipped) ( →P. 2 6 9 )
■ (Adaptive Front-lighting System) ( →P. 238)
■ BSM (Blind Spot Monitor) (if equipped) ( →P. 333)
■
Select to turn the speed warning on and off, or to change the speed at which
the speed warning is displayed.
■ (Road Sign Assi st) (if equipped) ( →P. 2 9 8 )
■
Select to set the display mode of the clock.
■
●
Oil Maintenance ( →P. 4 2 4 )
●TPMS (Tire pressure warning system) (if equipped) ( →P. 4 3 4 )
Settings display

1172. Instrument cluster
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Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
■G-force display
●The G-force values may not be zero even when the vehicle is parked, such as when it is
parked on an incline.
●Depending on the vehicle usage conditions, the brake fluid pressure display may not
reach its maximum reading even though the brake pedal is fully depressed.
●If a 12-volt battery terminal is disconnected and reconnected, the steering amount dis-
play may be disabled temporarily. After driving the vehicle for a while, the display will
be enabled.
●Depending on the condition of the vehicle, the brake fluid pressure display may change
even when the brake pedal is not depressed.
■System check display
After turning the power switch to ON mode, opening image is displayed while system
operation is checked. When the system check is complete, the normal screen will return.
■Suspension of the settings display
In the following situations, the settings di splay using the meter control switches will be
suspended.
●When a warning message appears on the multi-information display
●When the vehicle begins to move
■Tire inflation pressure (if equipped)
●It may take a few minutes to display the tire inflation pressure after the power switch is
turned to ON mode. It may also take a few minutes to display the tire inflation pressure
after inflation pressure has been adjusted.
●“---” may be displayed if the tire information cannot be determined due to unfavorable
radio wave conditions.
●Tire inflation pressure changes with temperature. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge.
■When disconnecting and reconnecting 12-volt battery terminals
The drive information will be reset.
■Liquid crystal display
→P. 1 0 9

2134-1. Before driving
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Driving
GS450h_300h_OM_OM30F00E_(EE)
■Tire information
●Increase the tire inflation pressure to 20.0 kPa (0.2 kgf/cm2 or bar, 3 psi) greater than
the recommended value when towing. ( →P. 5 7 5 )
●Increase the air pressure of the trailer tires in accordance with the total trailer weight
and according to the values recommended by the manufacturer of your trailer.
■Trailer lights
●Please consult at any authorized dealer or repairer, or another duly qualified and
equipped professional when in stalling trailer lights, as incorrect installation may cause
damage to the vehicle’s lights. Please take care to comply with your state’s laws when
installing trailer lights.
●Check that the turn signal lights and stoplights are operating correctly every time you
hitch up the trailer. Directly wiring up to your vehicle may damage the electrical system
and stop the lights from functioning correctly.
■Break-in schedule
Lexus recommends that vehicles fitted with new power train components should not be
used for towing trailers for the first 800 km (500 miles).
■Safety checks before towing
●Check that the maximum load limit for the towing hitch/bracket and hitch ball is not
exceeded. Bear in mind that the coupling weight of the trailer will add to the load
exerted on the vehicle. Also make sure that the total load exerted on the vehicle is
within the range of the weight limits. ( →P. 2 1 1 )
●Ensure that the trailer load is secure.
●Supplementary outside rear view mirrors shou ld be added to the vehicle if the traffic
behind cannot be clearly seen with standa rd mirrors. Adjust the extending arms of
these mirrors on both sides of the vehicle so that they always provide maximum visibility
of the road behind.
■Maintenance
●Maintenance must be performed more frequently when using the vehicle for towing
due to the greater weight burden placed on the vehicle compared to normal driving.
●Retighten all bolts securing the hitching ball and bracket after towing for approximately
1000 km (600 miles).
NOTICE
■When the rear bumper strengthening material is aluminum
Ensure the steel bracket part does not come directly in contact with that area.
When steel and aluminum come into contact, there is a reaction similar to corrosion,
which will weaken the section concerned and may result in damage. Apply a rust inhib-
itor to parts that will come in co ntact when attaching a steel bracket.