3
1
9 8
7
6 4 3
2
IS300h_EE(OM53C61E)
5
3-5. Opening, closing the
windows and moon roof
Power windows ............................ 184
Moon roof ...................................... 187
4-1. Before driving
Driving the vehicle ...................... 192
Cargo and luggage .................. 200
Trailer towing................................. 201
4-2. Driving procedures
Power (ignition) switch.............209
EV drive mode ............................. 214
Hybrid transmission ................... 216
Turn signal lever .......................... 222
Parking brake............................... 224
ASC
(Active Sound Control) ........ 225
4-3. Operating the lights and
wipers
Headlight switch ......................... 226
Automatic High Beam ............. 229
Fog light switch............................233
Windshield wipers and
washer..........................................2354-4. Refueling
Opening the fuel tank cap........241
4-5. Using the driving support
systems
Cruise control ............................. 245
Dynamic radar cruise
control.......................................... 249
LDA
(Lane Departure Alert) ..........261
Lexus parking
assist-sensor .............................. 267
Rear view monitor system ....... 274
Driving mode select
switch ...........................................283
Driving assist systems ...............286
PCS (Pre-Crash Safety
system)......................................... 292
BSM (Blind Spot Monitor) ..... 299
•The Blind Spot Monitor
function.....................................304
•The Rear Crossing
Traffic Alert function .......... 306
4-6. Driving tips
Hybrid vehicle driving tips..... 309
Winter driving tips ........................311
4Driving
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191
4Driving
IS300h_EE(OM53C61E)
4-1. Before driving
Driving the vehicle ...................... 192
Cargo and luggage .................. 200
Trailer towing................................. 201
4-2. Driving procedures
Power (ignition) switch.............209
EV drive mode ............................. 214
Hybrid transmission ................... 216
Turn signal lever .......................... 222
Parking brake............................... 224
ASC
(Active Sound Control) ........225
4-3. Operating the lights and
wipers
Headlight switch ......................... 226
Automatic High Beam ............. 229
Fog light switch............................ 233
Windshield wipers and
washer.......................................... 235
4-4. Refueling
Opening the fuel tank cap........2414-5. Using the driving support
systems
Cruise control ............................. 245
Dynamic radar cruise
control ......................................... 249
LDA
(Lane Departure Alert) .......... 261
Lexus parking
assist-sensor...............................267
Rear view monitor system ....... 274
Driving mode select
switch ........................................... 283
Driving assist systems............... 286
PCS (Pre-Crash Safety
system) ........................................ 292
BSM (Blind Spot Monitor) ..... 299
•The Blind Spot Monitor
function ....................................304
•The Rear Crossing
Traffic Alert function ...........306
4-6. Driving tips
Hybrid vehicle driving tips .....309
Winter driving tips ........................ 311
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209
4
Driving
IS300h_EE(OM53C61E)4-2. Driving procedures
Check that the parking brake is set.
Check that the shift lever is in P.
Firmly depress the brake pedal.
and a message will be displayed on the multi-information display.
If it is not displayed, the hybrid system cannot be started.
Press the power switch.
Continue depressing the brake pedal
until the hybrid system is completely
started.
The hybrid system can be started from
any power switch mode.
Check that the “READY” indicator is on.
The vehicle will not move when the “READY” indicator is off.
Power (ignition) switch
Performing the following operations when carrying the electronic key on your
person starts the hybrid system or changes power switch modes.
Starting the hybrid system
1
2
3
4
5
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2104-2. Driving procedures
IS300h_EE(OM53C61E)
Stop the vehicle.
Shift the shift lever to P.
Set the parking brake. (→P. 2 2 4 )
Press the power switch.
Release the brake pedal and check that the display on the meters is off.
Modes can be changed by pressing the power switch with brake pedal released.
(The mode changes each time the switch is pressed.)
Off*
The emergency flashers can be used.
The multi-information display will not be
displayed.
ACCESSORY mode
Some electrical components such as the
audio system can be used.
“ACCESSORY” will be displayed on the
meters.
ON mode
All electrical components can be used.
“IGNITION ON” will be displayed on
the meters.
*: If the shift lever is in a position other than
P when turning off the hybrid system,
the power switch will be turned to
ACCESSORY mode, not to off.
Stopping the hybrid system
Changing power switch modes
1
2
3
4
5
1
2
3
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2134-2. Driving procedures
4
Driving
IS300h_EE(OM53C61E)
CAUTION
■When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the hybrid system under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■Caution while driving
If hybrid system failure occurs while the vehicle is moving, do not lock or open the
doors until the vehicle reaches a safe and complete stop. Activation of the steering lock
in this circumstance may lead to an accident, resulting in death or serious injury.
■Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the vehicle, press
and hold the power switch for more than 2 seconds, or press it briefly 3 times or more
in succession. (→P. 4 9 5 )
However, do not touch the power switch while driving except in an emergency. Turning
the hybrid system off while driving will not cause loss of steering or braking control,
however, power assist to the steering will be lost. This will make it more difficult to steer
smoothly, so you should pull over and stop the vehicle as soon as it is safe to do so.
NOTICE
■To prevent 12-volt battery discharge
●Do not leave the power switch in ACCESSORY or ON mode for long periods of
time without the hybrid system on.
●If “ACCESSORY” or “IGNITION ON” is displayed on the meters while the hybrid
system is not operating, the power switch is not off. Exit the vehicle after turning the
power switch off.
●Do not stop the hybrid system when the shift lever is in a position other than P. If the
hybrid system is stopped in another shift lever position, the power switch will not be
turned off but instead be turned to ACCESSORY mode. If the vehicle is left in
ACCESSORY mode, 12-volt battery discharge may occur.
■When starting the hybrid system
●Do not depress the accelerator pedal unnecessarily.
●If the hybrid system becomes difficult to start, have your vehicle checked by any
authorized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional immediately.
■Symptoms indicating a malfunction with the power switch
If the power switch seems to be operating somewhat differently than usual, such as the
switch sticking slightly, there may be a malfunction. Contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional immediately.
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2424-4. Refueling
IS300h_EE(OM53C61E)
CAUTION
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting from static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.
●Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any person or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel system components or the vehicle’s painted sur-
face.
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4367-3. Do-it-yourself maintenance
IS300h_EE(OM53C61E)
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 “ACCESSORY” or “IGNITION 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 flamma-
ble.
●Take care because brake fluid can harm your hands or eyes and damage painted sur-
faces. 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 automatically 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.
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565
9 9-1. Specifications
Vehicle specifications
IS300h_EE(OM53C61E)
■Spark plug
Cooling system
Gasoline engine
Po w e r c o n t ro l u n i t
Left-hand drive
vehiclesRight-hand drive
vehicles
Capacity8.2 L (8.7 qt.,
7. 2 I m p . q t . )2.0 L (2.1 qt.,
1.8 Imp. qt.)2.2 L (2.3 qt.,
1.9 Imp. qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-silicate,
non-amine, non-nitrite, and non-borate coolant with long-
life hybrid organic acid technology
Do not use plain water alone.
Ignition system
Make DENSO FK20HBR8
Gap 0.8 mm (0.031 in.)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
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