brake fluid Lexus IS300h 2013 Owner's Manual

17Pictorial index
IS300h_EE(OM53B95E)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 115
Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 115
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 121
When the warning messages are displayed . . . . . . . . . . . . . . . . . . P. 513
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . P. 312
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 513
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 226
Headlights/front position lights/tail lights/daytime running lights P. 226
Front fog lights
*1/rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . P. 235
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 235
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 446
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 521
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 498
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 143
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437
Tilt and telescopic steering control switch
*1. . . . . . . . . . . . . . P. 176
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 176
Driving position memory*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 168
Tilt and telescopic steering lock release lever*1 . . . . . . . . . . . P. 176
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 176
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 398
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 398
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 404
Audio system*1, 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 316
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 316
Hands-free system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 367
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 145
*1: If equipped
*2: For vehicles with a navigation system, refer to “Navigation System Owner's
Manual”.
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25Pictorial index
IS300h_EE(OM53B95E)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 115
Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 115
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 121
When the warning messages are displayed . . . . . . . . . . . . . . . . . . P. 513
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . P. 312
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 513
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 226
Headlights/front position lights/tail lights/daytime running lights P. 226
Front fog lights
*1/rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . P. 235
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 235
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 446
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 521
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 498
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 143
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437
Tilt and telescopic steering control switch
*1. . . . . . . . . . . . . . P. 176
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 176
Driving position memory*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 168
Tilt and telescopic steering lock release lever*1 . . . . . . . . . . . P. 176
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 176
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 398
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 398
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 404
Audio system*1, 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 316
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 316
Hands-free system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 367
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 145
*1: If equipped
*2: For vehicles with a navigation system, refer to “Navigation System Owner's
Manual”.
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871-2. Hybrid system
1
For safety and security
IS300h_EE(OM53B95E)
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 elec-
trolyte from the hybrid battery (traction battery). If it comes into contact with
your skin or eyes, wash it off immediately with a large amount of water or, if
possible, boric acid solution. Seek immediate medical attention.
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 tow-
ing, the motor may continue to generate electricity. This may cause an elec-
tricity leakage leading to a fire. (P. 500)
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.

1994-1. Before driving
4
Driving
IS300h_EE(OM53B95E)
NOTICE
When driving the vehicle
Do not depress the accelerator and brake pedals at the same time during driv-
ing, as this may restrain driving torque.
Do not use the accelerator pedal or depress the accelerator and brake pedals at
the same time to hold the vehicle on a hill.
When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to move
or the vehicle may accelerate suddenly if the accelerator pedal is accidentally
depressed.
Avoiding damage to vehicle parts
Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage the power steering motor.
When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.
If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehicle.
It may be difficult to control your vehicle.
The vehicle will make abnormal sounds or vibrations.
The vehicle will lean abnormally.
Information on what to do in case of a flat tire (P. 530, 544)
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 qualified and
equipped professional check the following:
Brake function
Changes in quantity and quality of oil and fluid used for the engine, hybrid
transmission, differential, etc.
Lubricant condition for the propeller shaft, bearings and suspension joints
(where possible), and the function of all joints, bearings, etc.

3114-6. Driving tips
4
Driving
IS300h_EE(OM53B95E)
Use fluids that are appropriate to the prevailing outside temperatures.
•Engine oil
• Engine/power control unit coolant
•Washer fluid
Have a service technician inspect the condition of the 12-volt battery.
Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the rear tires.
*
Ensure that all tires are the specified size and brand, and that chains match
the size of the tires.
*: Tire chains cannot be mounted on the 18-inch tires.
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
windshield.
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 bottom of your shoes before get-
ting 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.
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
Preparation for winter
Before driving the vehicle
When driving the vehicle

4347-2. Maintenance
IS300h_EE(OM53B95E)
Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recom-
mends that maintenance service operations as well as other inspections and
repairs be carried out by authorized Lexus dealers or repairers or other duly qual-
ified and equipped professionals. For repairs and services covered by your war-
ranty, 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 repairers 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 condition-
ing 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 imme-
diately.)
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. 110)
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 possi-
ble. Your vehicle may need adjustment or repair.
CAUTION
If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and possi-
ble death or serious injury.
Handling of the 12-volt battery
12-volt battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands after
handling.
(P. 447)

4367-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
CAUTION
The engine compartment contains many mechanisms and fluids that may move
suddenly, become hot, or become electrically energized. To avoid death or seri-
ous injury, observe the following precautions.
When working on the engine compartment
Make sure that the “ACCESSORY” or “IGNITION ON” on the multi-infor-
mation 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 mani-
fold, 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 discomfort, consult a doctor.
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 automati-
cally start to run if the air conditioning is on and/or the coolant temperature is
high. (P. 446)
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.

5068-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
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 think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as
possible.
Visible symptoms
Audible symptoms
Operational symptoms

5078-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53B95E)
If a warning light turns on or a warning buzzer sounds
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.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light (warning buzzer)*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
Immediately stop the vehicle in a safe place and contact any
authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional. Continuing to drive the
vehicle may be dangerous.
Brake system warning light
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
Have the vehicle inspected by any authorized Lexus dealer
or repairer, or another duly qualified and equipped profes-
sional immediately.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and contact any
authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional.
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The emission control system (if equipped);
• The electronic engine control system; or
• The electronic throttle control system
Have the vehicle inspected by any authorized Lexus dealer
or repairer, or another duly qualified and equipped profes-
sional immediately.

5168-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
A buzzer also sounds.
Immediately stop the vehicle in a safe place and
contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped profes-
sional. Continuing to drive the vehicle may be
dangerous.
Indicates a malfunction in the hybrid system
A buzzer also sounds.
Immediately stop the vehicle in a safe place and
contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped profes-
sional.
Indicates that one or more of the doors is not fully
closed
The system also indicates which doors are not
fully closed.
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate
that the door(s) are not yet fully closed.
Make sure that all the doors are closed.
Indicates that the hood is not fully closed
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate
that the hood is not yet fully closed.
Close the hood.
Indicates that the trunk is not fully closed
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate
that the trunk is not yet fully closed.
Close the trunk.
(If equipped)
Indicates a malfunction in the Lexus parking
assists-sensor
The assist-sensors flash.
A buzzer also sounds.
Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly quali-
fied and equipped professional.
Warning messageDetails/Actions