Page 525 of 612
5258-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53C61E)
*: The hybrid system may not be restarted depending on the vehicle condition.
■Warning messages
→P. 5 2 0
■Warning buzzer
→P. 5 0 7
Once
Indicates that the power switch has
been pressed while driving
→Except when emergency stop-
ping of the vehicle is needed,
immediately release the power
switch.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
IS300h_EE_OM53C61E.book 525 ページ 2014年5月20日 火曜日 午後5時40分
Page 538 of 612

5388-2. Steps to take in an emergency
IS300h_EE(OM53C61E)
CAUTION
■When fixing the flat tire
●Stop your vehicle in a safe and flat area.
●Do not touch the wheels or the area around the brakes immediately after the vehicle
has been driven.
After the vehicle has been driven, the wheels and the area around the brakes may be
extremely hot. Touching these areas with hands, feet or other body parts may result in
burns.
●Connect the valve and hose securely with the tire installed on the vehicle.
●If the hose is not properly connected to the valve, air leakage may occur or sealant
may be sprayed out.
●If the hose comes off the valve while inflating the tire, there is a risk that the hose will
move abruptly due to air pressure.
●After inflation of the tire has completed, the sealant may splatter when the hose is dis-
connected or some air is let out of the tire.
●Follow the operation procedure to repair the tire. If the procedure is not followed, the
sealant may spray out.
●Keep back from the tire while it is being repaired, as there is a chance of it bursting
while the repair operation is being performed. If you notice any cracks or deforma-
tion of the tire, turn off the compressor switch and stop the repair operation immedi-
ately.
●The kit may overheat if operated for a long period of time. Do not operate the com-
pressor continuously for more than 10 minutes.
●Parts of the kit become hot during operation. Be careful handling the kit during and
after operation.
●Do not attach the vehicle speed warning sticker to an area other than the one indi-
cated. If the sticker is attached to an area where an SRS airbag is located, such as the
pad of the steering wheel, it may prevent the SRS air bag from operating properly.
■Driving to spread the liquid sealant evenly
●Drive the vehicle carefully at a low speed. Be especially careful when turning and cor-
nering.
●If the vehicle does not drive straight or you feel a pull through the steering wheel, stop
the vehicle and check the following:
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If tire inflation pressure is 130 kPa (1.3 kgf/cm
2 or bar, 19 psi)
or below, this may indicate severe tire damage.
IS300h_EE_OM53C61E.book 538 ページ 2014年5月20日 火曜日 午後5時40分
Page 539 of 612

5398-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53C61E)
NOTICE
■When performing an emergency repair
●Perform the emergency repair without removing the nail or screw that has punctured
the tread of the tire. If the object that has punctured the tire is removed, repair by the
emergency tire puncture repair kit may not be possible.
●The kit is not waterproof. Make sure that the kit is not exposed to water, such as when
it is being used in the rain.
●Do not put the kit directly onto dusty ground such as sand at the side of the road. If the
kit vacuums up dust etc., a malfunction may occur.
●Use the kit with the top facing upward. The kit cannot work properly if it is laid on its
side.
■Handling the emergency tire puncture repair kit
●The compressor power source should be 12 V DC suitable for vehicle use. Do not
connect the compressor to any other source.
●If gasoline splatters on the kit, the kit may deteriorate. Take care not to allow gasoline
to contact it.
●Store the kit in its assigned place out of reach of children.
●Do not disassemble or modify the kit. Do not subject parts such as the air pressure
indicator to impacts. This may cause a malfunction.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and trans-
mitter may not operate properly. If a liquid sealant is used, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as soon
as possible. Make sure to replace the tire pressure warning valve and transmitter when
replacing the tire. (→P. 4 5 1 )
IS300h_EE_OM53C61E.book 539 ページ 2014年5月20日 火曜日 午後5時40分
Page 540 of 612

5408-2. Steps to take in an emergency
IS300h_EE(OM53C61E)
■Run-flat tires (A “RFT” or “DSST” mark is molded on the sidewall)
Take your vehicle to the nearest
Lexus dealer or authorized tire
dealer as soon as possible if any tire
goes flat.
The vehicle can be driven for a maxi-
mum of 300 km (186 miles) at a
speed below 60 km/h (37 mph)
after the tire pressure warning light
comes on. (→P. 505)
■In some conditions (such as at high temperatures)
You cannot continue driving for up to 300 km (186 miles).
■For the detailed information on run-flat tires
See the tire warranty booklet.
If you have a flat tire (vehicles with run-flat tires)
Your vehicle is not equipped with a spare tire, but instead you can continue
driving the vehicle with run-flat tires even if any tire goes flat.In this case, slow
down and drive with extra caution.
NOTICE
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional as the tire pressure warning valve and transmitter may be dam-
aged if not handled correctly.
■When driving over bumps
If a vehicle has a flat tire, the vehicle height will be lower than usual. Ensure that nothing
strikes the bottom of the vehicle.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and trans-
mitter may not operate properly. If a liquid sealant is used, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional or other
qualified service shop as soon as possible. Make sure to replace the tire pressure warn-
ing valve and transmitter when replacing the tire. (→P. 4 5 1 )
IS300h_EE_OM53C61E.book 540 ページ 2014年5月20日 火曜日 午後5時40分
Page 576 of 612
5769-2. Customization
IS300h_EE(OM53C61E)
■Door lock (→P. 136, 143, 544)
■Smart entry & start system and wireless remote control (→P. 136, 143)
FunctionDefault settingCustomized setting
Unlocking using a mechani-
cal keyAll doors
unlocked in
one stepDriver's door
unlocked in one
step, all doors
unlocked in two
steps
———O
Speed-detecting automatic
door lock functionOnOffO—OO
Shifting gears to position
other than P locks all doorsOffOnO—OO
Shifting gears to P unlocks
all doorsOffOnO—OO
Opening driver's door
unlocks all doorsOnOffO—OO
Locking/unlocking of the
trunk when all doors are
locked/unlockedOnOff———O
1234
FunctionDefault settingCustomized setting
Operation signal
(Emergency flashers)OnOffO—OO
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked
30 seconds
60 seconds
——OO120 seconds
Open door warning buzzerOnOff———O
1234
IS300h_EE_OM53C61E.book 576 ページ 2014年5月20日 火曜日 午後5時40分
Page 583 of 612
583
IS300h_EE(OM53C61E)
9
Vehicle specifications
9-3. Initialization
Items to initialize
The following item must be initialized for normal system operation after such
cases as the 12-volt battery being reconnected, or maintenance being per-
formed on the vehicle:
ItemWhen to initializeReference
Tire pressure warning system
• When rotating the tires
• When changing the tire inflation
pressure by changing traveling
speed or load weight, etc.
P. 4 5 2
IS300h_EE_OM53C61E.book 583 ページ 2014年5月20日 火曜日 午後5時40分
Page 588 of 612

588What to do if... (Troubleshooting)
IS300h_EE(OM53C61E)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. (→P. 1 8 4 )
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
(→P. 211)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (→P. 505)
●The parking brake indicator is on
Is the parking brake released? (→P. 2 2 4 )
Depending on the situation, other types of warning buzzer may also sound.
(→P. 503, 509)
●Did anyone inside the vehicle open a door or anything move inside the vehicle
during setting the alarm?
The sensor detects them and the alarm sounds. (→P. 9 6 )
To stop the alarm, turn the power switch to ON mode or start the hybrid system.The windows do not open or close by operating the power window
switches
The power switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)
IS300h_EE_OM53C61E.book 588 ページ 2014年5月20日 火曜日 午後5時40分
Page 589 of 612
589What to do if... (Troubleshooting)
IS300h_EE(OM53C61E)
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. (→P. 509)
●When a warning light turns on or a warning message is displayed, refer to
P. 503, 509.
●Vehicles with an emergency tire puncture repair kit
Stop the vehicle in a safe place and repair the flat tire temporarily with the
emergency tire puncture repair kit. (→P. 5 2 6 )
●Vehicles with run-flat tires
Slow down and drive with extra caution. Take your vehicle to the nearest
Lexus dealer or authorized tire dealer to have the flat tire replaced.
(→P. 5 4 0 )
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(→P. 5 5 6 ) A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
IS300h_EE_OM53C61E.book 589 ページ 2014年5月20日 火曜日 午後5時40分