roof Lexus GS450h 2015 Opening, closing and locking the doors and trunk / LEXUS 2015 GS450H FROM MAR. 2015 PROD. (OM30F70U) Owner's Manual

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3-5. Opening, closing the windows and moon roof
■Moon roof open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the
instrument cluster when the power switch is turned off and the driver’s door is
opened with the moon roof open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: P. 5 9 9 )
CAUTION
Observe the following precautions.
Failure to do so may cause death or serious injury.
■Opening the moon roof
●Do not allow any passengers to put thei r hands or heads outside the vehicle while
it is moving.
●Do not sit on top of the moon roof.
■Closing the moon roof
●The driver is responsible for moon roof opening and closing operations.
In order to prevent accidental operation, especially by a child, do not let a child
operate the moon roof. It is possible for children and other passengers to have
body parts caught in the moon roof.
●Check to make sure that all passengers do not have any part of their body in a
position where it could be caught wh en the moon roof is being operated.
●When using the mechanical key and oper ating the moon roof, operate the moon
roof after checking to make sure that there is no possibility of any passenger hav-
ing any of their body parts caught in the moon roof. Also, do not let a child oper-
ate moon roof by the mechanical key. It is possible for children and other
passengers to get caught in the moon roof.
●When exiting the vehicle, turn the power switch off, carry the key and exit the
vehicle along with the child. There may be accidental operation, due to mischief,
etc., that may possibly lead to an accident.
■Jam protection function
●Never use any part of your body to inte ntionally activate the jam protection func-
tion.
●The jam protection function may not work if something gets caught just before
the moon roof fully closes.

GS450h_OM_OM30F70U_(U)
3174-6. Driving tips
4
Driving
◆Air conditioning
Use the air conditioning only when necessary. Doing so can help con-
trol excessive gasoline consumption.
In summer: In high temperatures, use the recirculated air mode. Doing
so will help to reduce the burden on the air conditioner and reduce fuel
consumption as well.
In winter: Because the gasoline eng ine will not automatically cut out
until the gasoline engine and the interi or of the vehicle are warm, it will
consume fuel. Also, fuel consumption can be improved by avoiding
overuse of the heater.
◆Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. Improper tire
inflation pressure can cause poor fuel consumption.
Also, as snow tires can cause large amounts of friction, their use on dry
roads can lead to poor fuel consump tion. Use a tire that is appropriate
for the season.
◆Luggage
Carrying heavy luggage can lead to poor fuel consumption. Avoid car-
rying unnecessary luggage. Installing a large roof rack can also cause
poor fuel consumption.
◆Warming up before driving
Since the gasoline engine starts up and cuts out automatically when
cold, warming up the engine is unne cessary. Moreover, frequently driv-
ing short distances will cause the engine to repeatedly warm up, which
can lead to poor fuel consumption.

GS450h_OM_OM30F70U_(U)
3194-6. Driving tips
4
Driving
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is frozen.
Pour warm water over the frozen area to melt the ice. Wipe away the
water immediately to prevent it from freezing.
●To ensure proper operation of the climate control system fan, remove
any snow that has accumulated on the air inlet vents in front of the wind-
shield.
●Check for and remove any excess ice or snow that may have accumu-
lated on the exterior lights, vehicle’s roof, chassis, around the tires or on
the brakes.
●Remove any snow or mud from the bo ttom of your shoes before getting
in the vehicle.
Accelerate the vehicle slowly, keep a safe distance between you and the
vehicle ahead, and drive at a reduced speed suitable to road conditions.
Park the vehicle and move the shift lever to P without setting the parking
brake. The parking brake may freeze up, preventing it from being
released. If necessary, block the wheels to prevent inadvertent sliding or
creeping.
Before driving the vehicle
When driving the vehicle
When parking the vehicle

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GS450h_OM_OM30F70U_(U)
6-1. Maintenance and care
Cleaning and protecting the vehicle exterior
●Working from top to bottom, liberally apply water to the vehicle body,
wheel wells and underside of the vehicle to remove any dirt and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a chamois.
●For hard-to-remove marks, use car wash soap and rinse thoroughly
with water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle body is
cool.
■Self-restoring coat
The vehicle body has a self-restoring coating that is resistant to small surface
scratches caused in a car wash etc.
●The coating lasts for 5 to 8 years from when the vehicle is delivered from the plant.
●The restoration time differs depending on the depth of the scratch and outside
temperature. The restoration time may become shorter when the coating is
warmed by applying warm water.
●Deep scratches caused by keys, co ins, etc. cannot be restored.
●Do not use wax that contain abrasives.
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of the
vehicle. Make sure to extend the mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface and harm
your vehicle’s paint.
Perform the following to protect th e vehicle and maintain it in prime
condition:

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6-3. Do-it-yourself maintenance
■Driver’s side instrument panel
FuseAmpereCircuit
1STOP7. 5Stop lights, high mounted stoplight
2P/ W- B5Po w e r w i n d o w m a s t e r s w i t c h
3P/ S E AT 1 F/ L30Po w e r s e a t s
4D/L NO.125Power door lock system
5NV-IR10Lexus night view
6FL S/HTR10Seat heaters/ventilators
7WIPER30Windshield wipers
8WIPER-IG5Windshield wipers
9LH-IG10
Seat belts, body ECU, AFS, overhead mod-
ule, raindrop sensor, inside rear view mirror,
lane camera sensor (LKA), head-up display,
shift lock system, intuitive parking assist, front
left-hand door ECU, driver monitor system,
Remote Touch screen, electric tilt and tele-
scopic steering column, power seats, moon
roof, windshield wiper de-icer, intuitive park-
ing assist switch, PTC heater, Blind Spot
Monitor buzzer
10LH ECU-IG10
VDIM, brake system, D-SW MODULE
(Blind Spot Monitor, heated steering wheel),
driver support system, AFS, electric cooling
fans, EPB, air conditioning system, steering
sensor

GS450h_OM_OM30F70U_(U)
4716-3. Do-it-yourself maintenance
6
Maintenance and care
11DOOR FL30Outside rear view mirror defoggers, power
window (front left-hand)
12CAPACITOR
(HV)10Capacitor
13STRG LOCK15Steering lock system
14D/L NO.225Power door lock system
15DOOR RL30Power window (rear left-hand)
16HAZ15Turn signal lights, emergency flashers
17LH-IG210
Multiport fuel injection system/sequential
multiport fuel injection system, stop lights,
smart access system with push-button start,
steering lock system, brake system, power
management system
18LH J/B-B7. 5Body ECU
19S/ROOF20Moon roof
20P/ S E AT 2 F/ L25Po w e r s e a t s
21TI & TE20Electric tilt and telescopic steering column
22A/C7. 5Air conditioning system
FuseAmpereCircuit

5217-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
Indicates that the trunk is
not fully closedIf the vehicle reaches a
speed of 3 mph (5
km/h), flashes
and a buzzer sounds
to indicate that the
trunk is not yet fully
closed.
Close the trunk.
Indicates that the win-
dows are not fully closed
(with the power switch
off, and the driver’s door
open)
Close all the windows.
Indicates that the moon
roof is not fully closed
(with the power switch
off, and the driver’s door
open)
Close the moon roof.
Indicates that the win-
dows and the moon roof
are not fully closed (with
the power switch off, and
the driver’s door open)
Close all the windows
and the moon roof.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)
(Flashes)
(Flashes)

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7
When trouble arises
7-2. Steps to take in an emergency
If the electronic key does not operate properly
■Doors
Use the mechanical key
( P. 120) in order to perform
the following operations:
Locks all the doors
Closes the windows and moon
roof
* (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 5 seconds
unlocks the other doors.
Opens the windows and moon
roof
* (turn and hold)
*: This setting must be customized at your Lexus dealer.
If communication between the ele ctronic key and vehicle is inter-
rupted ( P. 130) or the electronic key cannot be used because the
battery is depleted, the smart access system with push-button start and
wireless remote control cannot be us ed. In such cases, the doors and
trunk can be opened and the hybrid system can be started by following
the procedure below.
Locking and unlocking the doors, unlocking the trunk and key
linked functions
1
2
3
4

5617-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
■Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when stop-
ping the hybrid system.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immedi ately when the battery is depleted. (P. 4 6 0 )
■Changing power switch modes
Release the brake pedal and press the power switch in step above.
The hybrid system does not start and modes will be changed each time the switch is
pressed.( P. 1 9 4 )
■When the electronic key does not work properly
●Make sure that the smart access system with push-button start has not been deac-
tivated in the customization setting. If it is off, turn the function on.
(Customizable features:  P. 599)
●Check if battery-saving mode is set. If it is set, cancel the function. ( P. 1 2 9 )
CAUTION
■When using the mechanical key and operating the power windows and moon
roof
Operate the power window or moon roof af ter checking to make sure that there is
no possibility of any passenger having any of their body parts caught in the window
or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for children
and other passengers to get caught in the power window or moon roof.
3

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8-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of hybrid transmission,
power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty 12-volt battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated