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4096-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53B95E)
Turn the heated steering wheel on/
off
The indicator light comes on when
the heated steering wheel is operat-
ing.
Heated steering wheel/seat heaters/seat ventilators
: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by
blowing air from the seats.
CAUTION
Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the heater 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.)
Observe the following precautions to prevent minor burns or overheating,
• Do not cover the seat with a blanket or cushion when using the seat heater.
• Do not use seat heater more than necessary.
NOTICE
Do not put heavy objects that have an uneven surface on the seat and do not
stick sharp objects (needles, nails, etc.) into the seat.
To prevent 12-volt battery discharge, do not use the functions when the hybrid
system is off.
Heated steering wheel
Page 424 of 628

4106-1. Using the air conditioning system
IS300h_EE(OM53B95E)
The heated steering wheel can be used when the power switch is in ON mode.
The heated steering wheel will automatically turn off after about 30 minutes.
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights
(amber) light as follows:
Hi (3 segments lit) Mid (2 seg-
ments lit) Lo (1 segment lit)
Off
The seat heaters can be used when the power switch is in ON mode.
Seat heater timer control: The seat heater automatically switches from
HiMidLo. The switching timing differs depending on the temperature
inside the cabin etc. when the seat heater was operated.
The seat heater timer control can be turned on and off by pressing the seat
heater switches for the driver side and front passenger side at the same time
until a buzzer sounds. The buzzer will beep once when the seat heater timer
control is turned on and twice when it is turned off.
Each time the switch is pressed, the
intensity of the seat ventilator
changes and the level indicator
lights (green) light as follows:
Hi (3 segments lit) Mid (2 seg-
ments lit) Lo (1 segment lit)
Off
The seat ventilators can be used when the power switch is in ON mode.
Seat heaters
Ty p e A Ty p e B
Seat ventilators
Page 497 of 628
4837-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
Front turn signal lights (vehicles with discharge headlights)
To ensure enough space to per-
form work, turn the steering
wheel to rotate the front wheel
away from the bulb to be
replaced.
Remove the 2 fender liner
clips.
Turn the steering wheel to the left
when replacing the right side light
bulb, and turn the steering wheel
to the right when replacing the
left side light bulb.
To take out the lower clip, turn
the head of the clip to unlock it,
then remove it by pulling.
Unfasten the clamp, and pull
back the fender liner.
When unfastening the clamp,
wrap the tip of the screwdriver
with tape to protect the vehicle
from damage.
Turn the bulb base counter-
clockwise.
1
2
3
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4998-1. Essential information
8
When trouble arises
IS300h_EE(OM53B95E)
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle speed
as much as possible.
To stop the hybrid system, press
and hold the power switch for 2
consecutive seconds or more, or
press it briefly 3 times or more in
succession.
Stop the vehicle in a safe place by the road.
If your vehicle has to be stopped in an emergency
Only in an emergency, such as if it becomes impossible to stop the vehi-
cle in the normal way, stop the vehicle using the following procedure:
1
2
3
4
3
Press and hold for 2 seconds or
more or press briefly 3 times or
4
CAUTION
If the hybrid system has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the brake
pedal harder to depress and the steering wheel heavier to turn. Decelerate as
much as possible before turning off the hybrid system.
5
Page 514 of 628

500
IS300h_EE(OM53B95E)8-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional before towing.
The hybrid system is operating but the vehicle will not move.
The vehicle makes an abnormal sound.
If a tow truck is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency tow-
ing eyelet. This should only be
attempted on hard surfaced roads for
short distances at under 30 km/h (18
mph).
A driver must be in the vehicle to
steer and operate the brakes. The
vehicle’s wheels, drive train, axles,
steering and brakes must be in good
condition.
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional or a commercial towing service, using a lift-type
truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/provincial
and local laws.
Before towing
Emergency towing
Page 516 of 628
5028-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
Do not tow with a sling-type truck
to prevent body damage.
Towing with a sling-type truck
Towing with a wheel-lift type truck
From the frontFrom the rear
Use a towing dolly under the rear
wheels.Turn the power switch to ACCES-
SORY mode so that the steering
wheel is unlocked.
Page 518 of 628

5048-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
Before emergency towing
Release the parking brake.
Shift the shift lever to N.
Turn the power switch to ACCESSORY (hybrid system off) or ON (hybrid
system operating) mode.
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
When transporting the vehicle
Caution while towing
Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress
on the emergency towing eyelets and the cables or chains. Always be cautious
of the surroundings and other vehicles while towing.
If the hybrid system is off, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
Installing towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.
1
2
3
Be sure to transport the vehicle with the
rear wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the rear wheels contacting the
ground, the drivetrain and related parts
may be damaged or the electric motor
(traction motor) may generate electricity. If
the motor generates electricity, depending
on the state of the damage or malfunction,
fi d t h t i it
Page 519 of 628
5058-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53B95E)
NOTICE
To prevent causing serious damage to the transmission when towing using a
wheel-lift type truck
Never tow this vehicle from the front with the rear wheels on the ground.
To prevent damage to the vehicle when towing using a wheel-lift type truck
Do not tow the vehicle from the rear with the power switch off. The steering
lock mechanism is not strong enough to hold the front wheels straight.
When raising the vehicle from the rear, ensure adequate ground clearance for
towing at the opposite end of the raised vehicle. Without adequate clearance,
the vehicle could be damaged while being towed from the rear.
To prevent body damage when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
To prevent damage to the vehicle
Do not use the rear tie down hooks when your vehicle is towed.