Page 667 of 1014

6445-4. Using the hands-free phone system(for cellular phone)
GS450h_300h_OM_OM30D53E_(EE)
Received messages can be forwarded from the connected Blue-
tooth
® phone, enabling checking and replying (Quick reply).
Checking a message
Display the “Telephone” screen. (P. 625)
Select “Messages” on the “Telephone” screen.
Depending on the type of Bluetooth® phone being connected, it may be
necessary to perform additional steps on the phone.
When “Message transfer” is set to “Off”, a confirmation screen will be
displayed. Select “Yes”.
Select the desired message
to check.
The text of the message is not
displayed while driving.
Selecting “Previous” or “Next”
displays the previous or next
message.
Select “Play” to start reading out of the message. Select “Stop”
to stop the function.
To adjust the message reading out volume
Select “-” or “+”, turn the “power/volume” knob, or use the vol-
ume switch on the steering wheel.
Replying a message (Quick reply)
Select “Reply” on the
desired message screen.
Using a Bluetooth® phone message
1
2
3
4
1
Page 726 of 1014
7025-7. Other interior features
GS450h_300h_OM_OM30D53E_(EE)
Heated steering wheel
Turns the heater on/off
The indicator light comes on when
the heater is operating.
Operating condition
The power switch is in ON mode.
Timer
The heated steering wheel will automatically turn off after about 30 minutes.
: If equipped
The heated steering wheel heats the side grips of the steering
wheel.
Page 727 of 1014
7035-7. Other interior features
5
Interior features
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Burns
Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel when the heated steering wheel is
on:
Babies, small children, the elderly, the sick and the physically challenged
Persons with sensitive skin
Persons who are fatigued
Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
NOTICE
To prevent the 12-volt battery from being discharged
Turn the switch off when the hybrid system is off.
Page 743 of 1014
719
6Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ......... 720
Cleaning and protecting
the vehicle interior .......... 724
6-2. Maintenance
Maintenance
requirements ................... 728
6-3. Do-it-yourself maintenance
Do-it-yourself service
precautions...................... 731
Hood ................................. 734
Positioning a floor jack ..... 735
Engine compartment ......... 737
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
Page 744 of 1014

7206-1. Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
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 thor-
oughly 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.
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.
Rear spoiler (if equipped) may not be washable in some automatic car
washes. There may also be an increased risk of damage to vehicle.
High pressure car washes
Do not allow the nozzles of the car wash to come within close proximity of
the windows.
Before using the car wash, check that the fuel filler door on your vehicle is
closed properly.
Perform the following to protect the vehicle and maintain it in
prime condition:
Page 745 of 1014

7216-1. Maintenance and care
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Notes for a smart entry & start system
If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. In that case, follow the
following correction procedures to wash the vehicle:
Place the key in a position 2 m (6 ft.) or more separate from the vehicle
while the vehicle is being washed. (Take care to ensure that the key is not
stolen.)
Set the electronic key to battery-saving mode to disable the smart entry &
start system. (P. 1 4 9 )
Aluminum wheels
Remove any dirt immediately by using a neutral detergent. Do not use hard
brushes or abrasive cleaners. Do not use strong or harsh chemical cleaners.
Use the same mild detergent and wax as used on the paint.
Do not use detergent on the wheels when they are hot, for example after
driving for long distance in the hot weather.
Wash detergent from the wheels immediately after use.
Bumpers
Do not scrub with abrasive cleaners.
Front side windows water-repellent coating
The following precautions can extend the effectiveness of the water-repel-
lent coating.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long
period.
Clean the windows with a soft, damp cloth as soon as possible.
• Do not use wax or glass cleaners that contain abrasives when cleaning
the windows.
• Do not use any metallic objects to remove condensation build up.
When the water-repellent performance has become insufficient, the coating
can be repaired. Contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Outside rear view mirror rain-clearing coating (if equipped)
Observe the following precautions in order to retain the rain-clearing proper-
ties of the mirrors:
Clean the mirrors using a car shampoo or glass cleaner that does not contain
silicone or an abrasive compound, and rinse thoroughly with water.
Allow the mirrors to be exposed to direct sunlight for 1 to 2 days.
Page 747 of 1014

7236-1. Maintenance and care
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
To prevent paint deterioration and corrosion on the body and components
(aluminum wheels etc.)
Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the
paint surface
• After driving in an area contaminated with soot, oily smoke, mine dust,
iron powder or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
If the paint is chipped or scratched, have it repaired immediately.
To prevent the wheels from corroding, remove any dirt and store in a
place with low humidity when storing the wheels.
Cleaning the exterior lights
Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surfaces of the lights.
Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
When using an automatic car wash (vehicles with rain-sensing windshield
wipers)
Turn off AUTO mode of the wiper to prevent the wiper from operating.
(P. 285)
If AUTO mode is selected, the wipers may operate and the wiper blades
may be damaged.
Page 780 of 1014

7566-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Your vehicle is equipped with a tire pressure warning system that
uses tire pressure warning valves and transmitters to detect low tire
inflation pressure before serious problems arise.
Vehicles without the tire inflation pressure display function
If the tire pressure drops below a predetermined level, the driver is
warned by a warning light. (P. 834)
Vehicles with the tire inflation pressure display function
If the tire pressure drops below a predetermined level, the driver
is warned by a screen display and a warning light. (P. 859)
The tire pressure detected by the tire pressure warning system
can be displayed on the multi-information display. (P. 117)
Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and
transmitters must also be installed.
When new tire pressure warning valves and transmitters are
installed, new ID codes must be registered in the tire pressure
warning computer and the tire pressure warning system must be
initialized. Have tire pressure warning valve and transmitter ID
codes registered by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional. (P. 758)
Tire pressure warning system (if equipped)