brake fluid Lexus GS300h 2013 Owner's Manual

17Pictorial index
GS450h_300h_OM_OM30D53E_(EE)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 114
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 114
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 130
When the warning messages are displayed. . . . . . . . . . . . . . . . P. 838
Parking brake switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 266
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 266
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 435
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 838
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 264
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Headlights/front position lights/tail lights/daytime running lightsP. 272
Front fog lights
*/rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . P. 283
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . P. 285
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 747
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 858
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 820
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Tilt and telescopic steering control switch . . . . . . . . . . . . . . . . P. 207
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Driving position memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 478
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 478
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 499
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 501
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 501
Hands-free system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 611
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 188
*: If equipped
4
5
6
7
8
9
10
11
12
13
14

25Pictorial index
GS450h_300h_OM_OM30D53E_(EE)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 114
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 114
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 130
When the warning messages are displayed. . . . . . . . . . . . . . . . P. 838
Parking brake switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 266
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 266
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 435
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 838
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 264
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Headlights/front position lights/tail lights/daytime running lightsP. 272
Front fog lights
*/rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . P. 283
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . P. 285
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 747
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 858
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 820
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Tilt and telescopic steering control switch . . . . . . . . . . . . . . . . P. 207
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Driving position memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 478
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 478
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 499
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 501
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 501
Hands-free system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 611
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 188
*: If equipped
4
5
6
7
8
9
10
11
12
13
14

881-2. Hybrid system
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Road accident cautions
Observe the following precautions to reduce the risk of death or serious
injury:
Pull your vehicle off the road, apply the parking brake, shift the shift lever
to P, and turn the hybrid system off.
Do not touch the high voltage parts, cables and connectors.
If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
If a fluid leak occurs, do not touch the fluid as it may be strong alkaline
electrolyte from the hybrid battery (traction battery). If it comes into con-
tact with your skin or eyes, wash it off immediately with a large amount of
water or, if possible, boric acid solution. Seek immediate medical atten-
tion.
If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using
even a small amount of water may be dangerous.
If your vehicle needs to be towed, do so with rear wheels raised. If the
wheels connected to the electric motor (traction motor) are on the ground
when towing, the motor may continue to generate electricity. This may
cause an electricity leakage leading to a fire. (P. 822)
Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.

235
4 4-1. Before driving
Driving
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may
cause the following serious damage to the vehicle:
Engine stalling
Short in electrical components
Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have any authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional check the following:
Brake function
Changes in quantity and quality of oil and fluid used for the engine, trans-
mission, differential, etc.
Lubricant condition for the propeller shaft, bearings and suspension joints
(where possible), and the function of all joints, bearings, etc.

7296-2. Maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus rec-
ommends that maintenance service operations as well as other inspections
and repairs be carried out by authorized Lexus dealers or repairers or other
duly qualified and equipped professionals. For repairs and services covered
by your warranty, please visit an authorized Lexus dealer or repairer, who
will use genuine Lexus parts in repairing any difficulties you may encounter.
There can also be advantages in utilizing authorized Lexus dealers or repair-
ers for non-warranty repairs and services, as members of the Lexus network
will be able to expertly assist you with any difficulties you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped profes-
sional will perform all of the scheduled maintenance on your vehicle reliably
and economically due to their experience with Lexus vehicles.
Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs
that indicate service is needed. Some important clues are:
Engine missing, stumbling or pinging
Appreciable loss of power
Strange engine noises
A fluid leak under the vehicle (However, water dripping from the air condi-
tioning system after use is normal.)
Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked
immediately.)
Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
Vehicle pulls to one side when driven straight on a level road
Strange noises related to suspension movement
Loss of brake effectiveness, spongy feeling brake pedal, pedal almost
touches the floor, vehicle pulls to one side when braking
Engine coolant temperature continually higher than normal (P. 1 1 0 )
If you notice any of these clues, take your vehicle to any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as
soon as possible. Your vehicle may need adjustment or repair.

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

733 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high.
(P. 747)
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine
wear due to dirt in the air.
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

829
7 7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
If you think something is wrong
Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
Flat-looking tires or uneven tire wear
Engine coolant temperature gauge needle continually points
higher than normal.
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the hybrid system
Engine missing, stumbling or running roughly
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle pulls heavily to one side when driving on a level road
Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor
If you notice any of the following symptoms, your vehicle proba-
bly needs adjustment or repair. Contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

8307-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
If a warning light turns on or a warning buzzer
sounds
The following warning indicates a possible problem in the brake
system. Immediately stop the vehicle in a safe place and contact
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then goes
off, this does not necessarily indicate a malfunction in the system.
However, if this continues to occur, have the vehicle inspected by
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.
Wa r n i n g
lightWarning light/Details
Brake system warning light (warning buzzer)
• Low brake fluid
• Malfunction in the electronically controlled brake sys-
tem

8397-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
If a warning message is displayed
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is currently
being displayed on the multi-infor-
mation display.
Multi-information display
If any of the warning light comes on again after the following
actions have been performed, contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
The following warning indicates a possible problem in the brake
system. Immediately stop the vehicle in a safe place and contact
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
If a warning is shown on the multi-information display, stay calm
and perform the following actions:
1
2
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.
Wa r n i n g m e s s a g eDetails
Indicates the following:
• The brake fluid level is low; or,
• The brake system is malfunctioning.
A buzzer also sounds.