2013 Lexus IS300h ECU

1974-1. Before driving
4
Driving
IS300h_EE(OM53B95E)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
When the vehicle is stopped
Do not depress the accelerator pedal unnecessarily.
If the shift lever is any position other than P or N, the vehicle may accelerate
suddenly and unexpectedly, causing an accident.
In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indicator on,
and apply the parking brake as necessary.
If the vehicle is stopped on an incline, in order to prevent accidents caused by
the vehicle rolling forward or backward, always depress the brake pedal and
securely apply the parking brake as needed.
Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause the
exhaust system to overheat, which could result in a fire if combustible mate-
rial is nearby.
When the vehicle is parked
Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in the
vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic
material of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior
of the vehicle, and may also cause a short circuit in the vehicle’s electrical
components.
Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place
such as the glove box or on the floor, it may be lit accidentally when luggage
is loaded or the seat is adjusted, causing a fire.
Do not attach adhesive discs to the windshield or windows. Do not place con-
tainers such as air fresheners on the instrument panel or dashboard. Adhesive
discs or containers may act as lenses, causing a fire in the vehicle.
Do not leave a door or window open if the curved glass is coated with a met-
allized film such as a silver-colored one. Reflected sunlight may cause the
glass to act as a lens, causing a fire.
Always apply the parking brake, shift the shift lever to P, stop the hybrid sys-
tem and lock the vehicle.
Do not leave the vehicle unattended while the hybrid system is operating.
Do not touch the exhaust pipes while the hybrid system is operating or imme-
diately after turning the hybrid system off.
Doing so may cause burns.

1984-1. Before driving
IS300h_EE(OM53B95E)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
When taking a nap in the vehicle
Always turn the hybrid system off. Otherwise, if you accidentally move the
shift lever or depress the accelerator pedal, this could cause an accident or fire
due to hybrid system overheating. Additionally, if the vehicle is parked in a
poorly ventilated area, exhaust gases may collect and enter the vehicle, leading
to death or a serious health hazard.
When braking
When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause one
side of the vehicle to brake differently than the other side. Also, the parking
brake may not securely hold the vehicle.
If the electronically controlled brake system does not operate, do not follow
other vehicles closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be depressed
more firmly than usual. Also, the braking distance will increase. Have your
brakes fixed immediately.
The brake system consists of 2 or more individual hydraulic systems; if one of
the systems fails, the other(s) will still operate. In this case, the brake pedal
should be depressed more firmly than usual and the braking distance will
increase. Have your brakes fixed immediately.

2004-1. Before driving
IS300h_EE(OM53B95E)
Cargo and luggage
Take notice of the following information about storage precautions,
cargo capacity and load:
CAUTION
Things that must not be carried in the trunk
The following things may cause a fire if loaded in the trunk:
Receptacles containing gasoline
Aerosol cans
Storage precautions
Observe the following precautions.
Failure to do so may prevent the pedals from being depressed properly, may
block the driver’s vision, or may result in items hitting the driver or passengers,
possibly causing an accident.
Stow cargo and luggage in the trunk whenever possible.
To prevent cargo and luggage from sliding forward during braking, do not
stack anything in the enlarged trunk. Keep cargo and luggage low, as close to
the floor as possible.
When you fold down the rear seats, long items should not be placed directly
behind the front seats.
Never allow anyone to ride in the enlarged trunk. It is not designed for pas-
sengers. They should ride in their seats with their seat belts properly fastened.
Do not place cargo or luggage in or on the following locations.
• At the feet of the driver
• On the front passenger or rear seats (when stacking items)
• On the package tray
• On the instrument panel
• On the dashboard
• In front of the navigation system screen (if equipped) or Lexus Display
Audio screen (if equipped)
Secure all items in the occupant compartment.
Load and distribution
Do not overload your vehicle.
Do not apply loads unevenly.
Improper loading may cause deterioration of steering or braking control
which may cause death or serious injury.

2054-1. Before driving
4
Driving
IS300h_EE(OM53B95E)
Tire information
Increase the tire inflation pressure to 20.0 kPa (0.2 kgf/cm2 or bar, 3 psi) greater
than the recommended value when towing. (P. 570)
Increase the air pressure of the trailer tires in accordance with the total trailer
weight and according to the values recommended by the manufacturer of your
trailer.
Break-in schedule
Lexus recommends that vehicles fitted with new power train components should
not be used for towing trailers for the first 800 km (500 miles).
Safety checks before towing
Check that the maximum load limit for the towing hitch/bracket hitch ball is not
exceeded. Bear in mind that the coupling weight of the trailer will add to the
load exerted on the vehicle. Also make sure that you will not be towing a load
that exceeds the maximum permissible axle capacity.
Ensure that the trailer load is secure.
Supplementary outside rear view mirrors should be added to the vehicle if the
traffic behind cannot be clearly seen with standard mirrors. Adjust the extend-
ing arms of these mirrors on both sides of the vehicle so that they always pro-
vide maximum visibility of the road behind.
Maintenance
Maintenance must be performed more frequently when using the vehicle for
towing due to the greater weight burden placed on the vehicle compared to nor-
mal driving.
Retighten all bolts securing the hitching ball and bracket after towing for
approximately 1000 km (600 miles).
NOTICE
When the rear bumper strengthening material is aluminum
Ensure the steel bracket part does not come directly in contact with that area.
When steel and aluminum come into contact, there is a reaction similar to cor-
rosion, which will weaken the section concerned and may result in damage.
Apply a rust inhibitor to parts that will come in contact when attaching a steel
bracket.

2064-1. Before driving
IS300h_EE(OM53B95E)
Your vehicle will handle differently when towing a trailer. In order to
avoid accident, death or serious injury, keep the following in mind when
towing:
Checking connections between trailer and lights
Stop the vehicle and check the operation of the connection between the
trailer and lights after driving for a brief period as well as before start-
ing off.
Practicing driving with a coupled trailer
Get the feel for turning, stopping and reversing with the trailer cou-
pled by practicing in an area with no or light traffic.
When reversing with a coupled trailer, hold the section of the steer-
ing wheel nearest to you and rotate clockwise to turn the trailer left
or counterclockwise to turn it right. Always rotate a little at a time to
prevent steering error. Have someone guide you when reversing to
lessen the risk of an accident.
Increasing vehicle-to-vehicle distance
At a speed of 10 km/h (6 mph), the distance to the vehicle running
ahead of you should be equivalent to or greater than the combined
length of your vehicle and trailer. Avoid sudden braking that may cause
skidding. Otherwise, the vehicle may spin out of control. This is espe-
cially true when driving on wet or slippery road surfaces.
Sudden acceleration/steering input/cornering
Executing sharp turns when towing may result in the trailer colliding
with your vehicle. Decelerate well in advance when approaching turns
and take them slowly and carefully to avoid sudden braking.
Important points regarding turning
The wheels of the trailer will travel closer to the inside of the curve
than the wheels of the vehicle. To make allowance for this, take the
turns wider than you would normally do.
Guidance

2074-1. Before driving
4
Driving
IS300h_EE(OM53B95E)
Important points regarding stability
Vehicle movement resulting from uneven road surfaces and strong
crosswinds will affect handling. The vehicle may also be rocked by
passing buses or large trucks. Frequently check behind when moving
alongside such vehicles. As soon as such vehicle movement occurs,
immediately start to decelerate smoothly by slowly applying the
brakes. Always steer the vehicle straight ahead while braking.
Passing other vehicles
Consider the total combined length of your vehicle and trailer and
ensure that the vehicle-to-vehicle distance is sufficient before execut-
ing lane changes.
Transmission information
To maintain engine braking efficiency, when using engine braking
when driving on a long steep downward grade, do not use the transmis-
sion in D. The vehicle must be driven in gear shift position “4” in S
mode. (P. 219)
If the engine overheats
Towing a loaded trailer up a long, steep incline in temperatures exceed-
ing 30C (85F) may result in the engine overheating. If the engine
coolant temperature gauge indicates that the engine is overheating, turn
the air conditioning off immediately, leave the road and stop the vehi-
cle in a safe place.
(P. 555)
When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle and
trailer. Firmly set the parking brake and shift the shift lever to P.

2114-2. Driving procedures
4
Driving
IS300h_EE(OM53B95E)
If the hybrid system is stopped with the shift lever in a position other than
P, the power switch will not be turned off but instead be turned to
ACCESSORY mode. Perform the following procedure to turn the switch
off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Power OFF” is displayed on the multi-information
display and then press the power switch once.
Check that “Turn Power OFF” on the multi-information display is off.
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the shift
lever in P, the power switch will automatically turn off. However, this function
cannot entirely prevent 12-volt battery discharge. Do not leave the vehicle with
the power switch in ACCESSORY or ON mode for long periods of time when
the hybrid system is not operating.
Sounds and vibrations specific to a hybrid vehicle
P. 8 2
Electronic key battery depletion
P. 133
When the ambient temperature is low, such as during winter driving conditions
It may take time before the “READY” indicator comes on.
Conditions affecting operation
P. 151
Notes for the entry function
P. 152
If the hybrid system does not start
Check that the shift lever is securely set in P. The hybrid system may not start if
the shift lever is displaced out of P.
The immobilizer system may not have been deactivated. (P. 90)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
When stopping the hybrid system with the shift lever in a position
other than P
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2334-3. Operating the lights and wipers
4
Driving
IS300h_EE(OM53B95E)
Front and rear fog light switch
Turns the front and rear fog
lights off
Turns the front fog lights on
Turns both front and rear
fog lights on
Releasing the switch ring returns it
to .
Operating the switch ring again turns
only the rear fog light off.
Rear fog light switch
Turns the rear fog light off
Turns the rear fog light on
Releasing the switch ring returns it
to .
Operating the switch ring again turns
only the rear fog light off.
Fog light switch
The fog lights secure excellent visibility in difficult driving conditions,
such as in rain and fog.
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