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 756 of 1014

7326-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Light bulbs (P. 803)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser (P. 747)
Tire inflation pressure (P. 772)• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d (P. 748)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding
water or washer fluid)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
When working on the engine compartment
Make sure that the “POWER ON” on the multi-information display and
the “READY” indicator are both off.
Keep hands, clothing and tools away from the moving fan and engine
drive belt.
Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately. If you still experience dis-
comfort, consult a doctor.
ItemsParts and tools
Page 868 of 1014
8417-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
A buzzer sounds and a warning message is shown on the multi-
information display. The following warning indicates the possibil-
ity of damage to the vehicle that may lead to an accident. Immedi-
ately stop the vehicle in a safe place and contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
Stop the vehicle immediately.
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure
The warning light may come on if the engine
oil pressure is too low.
Indicates a malfunction in the hybrid system
or
Page 1000 of 1014

968Alphabetical index
GS450h_300h_OM_OM30D53E_(EE)
Emergency brake signal ............399
Emergency flashers ...................820
Emergency tire puncture
repair kit ..................................885
Energy monitor..........................131
Engine .......................................928
Accessory mode....................247
Compartment ........................738
Engine switch .......................246
Hood .....................................734
How to start the hybrid
system.................................246
Identification number ...........928
Ignition switch
(power switch)....................246
Overheating ..........................917
Power switch ........................246
Engine compartment cover........740
Engine coolant ...........................744
Capacity ................................933
Checking ...............................744
Preparing and checking
before winter ......................434
Engine coolant temperature
gauge .......................................109
Engine oil ..................................741
Capacity ................................930
Checking ...............................741
Oil level warning message....853
Oil pressure warning
message ..............................841
Preparing and checking
before winter ......................434Engine switch ........................... 246
EPS (Electric Power Steering) . 398
Function ............................... 398
Warning light ....................... 833
Warning message................. 845
EV drive mode.......................... 254
First-aid kit storage net ............. 694
Flat tire
Vehicles with a spare tire..... 871
Vehicles without a spare tire 885
Floor mats ................................... 34
Fluid
Brake.................................... 935
Hybrid transmission............. 934
Washer ................................. 748
Fog lights .................................. 283
Replacing light bulbs ... 805, 818
Switch .................................. 283
Wattage ................................ 940
Follow me home system ........... 273
Footwell light ........................... 684
Front air conditioning system ... 478
Front fog lights ......................... 283
Replacing light bulbs ... 805, 818
Switch .................................. 283
Wattage ................................ 940
Front personal lights ................. 685
Front position lights.................. 272
Light switch ......................... 272
Replacing light bulbs ........... 818
Welcome light illumination
control ............................... 143
F