charging Lexus IS300h 2014 Owner's Manual
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Page 81 of 612
811-2. Hybrid system
1
For safety and security
IS300h_EE(OM53C61E)
■Regenerative braking
In the following situations, kinetic energy is converted to electric energy and decelera-
tion force can be obtained in conjunction with the recharging of the hybrid battery (trac-
tion battery).
●The accelerator pedal is released while driving with the shift lever in D or S.
●The brake pedal is depressed while driving with the shift lever in D or S.
■EV indicator
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop automati-
cally in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
●As the gasoline engine charges the hybrid battery (traction battery), the battery does
not need to be charged from an outside source. However, if the vehicle is left parked for
a long time the hybrid battery will slowly discharge. For this reason, be sure to drive the
vehicle at least once every few months for at least 30 minutes or 16 km (10 miles). If the
hybrid battery becomes fully discharged and you are unable to jump-start the vehicle
with a 12-volt battery, contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
●If the shift lever is in N, the hybrid battery (traction battery) will not be charged. Always
shift the shift lever to P when the vehicle is stopped. When driving in heavy traffic, oper-
ate the vehicle with the shift lever in D or S to avoid discharging the battery.
■Charging the 12-volt battery
→P. 5 4 9 The EV indicator comes on when the vehicle is
driven using only the electric motor (traction
motor) or the gasoline engine is stopped.
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Page 105 of 612
1052. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53C61E)
Warning lights inform the driver of malfunctions in the indicated vehicle systems.
*1: These lights turn on when the power switch is turned to ON mode to indicate that a
system check is being performed. They will turn off after the hybrid system is on, or
after a few seconds. There may be a malfunction in a system if the lights do not come
on, or turn off. Have the vehicle inspected by any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
*2: The light flashes to indicate a malfunction.
*3: This light illuminates on the center panel.
Wa r n i n g l i g h t s
*1Brake system warning light
(→P. 5 0 3 )*1Slip indicator
(→P. 5 0 4 )
*1Brake system warning light
(→P. 5 0 3 )*1 Automatic headlight level-
ing system warning light
(→P. 5 0 5 )
*1Charging system warning
light (→P. 5 0 3 )Open door warning light
(→P. 5 0 5 )
*1Malfunction indicator
lamp (→P. 5 0 3 )Low fuel level warning light
(→P. 5 0 5 )
*1SRS warning light
(→P. 5 0 4 )Driver’s and front passen-
ger’s seat belt reminder light
(→P. 5 0 5 )
*1ABS warning light
(→P. 5 0 4 )*3Rear passengers’ seat belt
reminder lights (→P. 505)
*1Electric power steering sys-
tem warning light
(→P. 5 0 4 )*1Master warning light
(→P. 5 0 5 )
*1, 2
(if equipped)
Pre-crash safety system
warning light (→P. 5 0 4 )*1Tire pressure warning light
(→P. 5 0 5 )
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Page 113 of 612
1132. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53C61E)
■Hybrid System Indicator
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline engine power is not being used very often.
The gasoline engine will automatically stop and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an Eco-friendly manner.
Po w e r a re a
Shows that an Eco-friendly driving range is being exceeded (during full power driving
etc.)
●Hybrid System Indicator is displayed when the driving mode is other than sport mode
with the tachometer setting other than “Tachometer (Always)”.
●By keeping the indicator needle (except F SPORT models) or bar display (F SPORT
models) within the Eco area, more Eco-friendly driving can be achieved.
●Charge area indicates regeneration* status. Regenerated energy will be used to
charge the hybrid battery (traction battery).
*: When used in this manual, regeneration refers to the conversion of energy created by
the movement of the vehicle into electrical energy.
XExcept F SPORT models XF SPORT models
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2
3
4
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Page 123 of 612
1232. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53C61E)
Navigation system screenLexus Display Audio
screenMulti-information display
When the vehicle is powered by the electric motor (traction motor)
When the vehicle is powered by both the gasoline engine and the electric motor (trac-
tion motor)
When the vehicle is powered by the gasoline engine
When the vehicle is charging the hybrid battery (traction battery)
When there is no energy flow
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Page 133 of 612
1333-1. Key information
3
Operation of each component
IS300h_EE(OM53C61E)
■When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press any but-
tons on the electronic key while inside the aircraft cabin. If you are carrying an electronic
key in your bag etc., ensure that the buttons are not likely to be pressed accidentally.
Pressing a button may cause the electronic key to emit radio waves that could interfere
with the operation of the aircraft.
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year and a
half.)
●If the battery becomes low, an alarm will sound in the cabin when the hybrid system is
stopped. (→P. 5 2 3 )
●As the electronic key always receives radio waves, the battery will become depleted
even if the electronic key is not used. The following symptoms indicate that the elec-
tronic key battery may be depleted. Replace the battery when necessary. (→P. 4 7 1 )
• The smart entry & start system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not leave the electronic key within 1 m (3 ft.) of the
following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■Replacing the battery
→P. 4 7 1
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped professional for
details.
■If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.
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Page 386 of 612
3865-11. Bluetooth®
IS300h_EE(OM53C61E)
■Bluetooth® antenna
The antenna is built into the display.
If the portable audio player is behind the seat or in the glove box or console box, or is
touching or covered by metal objects, the connection status may deteriorate.
If the cellular phone is behind the seat or in the console box, or touching or covered by
metal objects, the connection status may deteriorate.
■Battery charge/signal status
●This display may not correspond exactly with the portable audio player or cellular
phone itself.
●This system does not have a charging function.
●The portable audio player or cellular phone battery will be depleted quickly when the
device is connected to Bluetooth®.
■When using the Bluetooth® audio and hands-free system at the same time
The following problems may occur.
●The Bluetooth® audio connection may be interrupted.
●Noise may be heard during Bluetooth® audio playback.
■About the contact in this system
The following data is stored for every registered cellular phone. When another phone is
connecting, you cannot read the registered data.
●Contact data
●Call history
●Favorite
When removing a Bluetooth® phone from the system, the above-mentioned data is also
deleted.
■About Bluetooth®
Bluetooth® is a registered trademark of Blue-
tooth SIG, Inc.
The Bluetooth
® word mark and logos are
owned by the Bluetooth SIG, Inc. and any use of
such marks by FUJITSU TEN LIMITED is under
license. Other trademarks and trade names are
those of their respective owners.
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Page 448 of 612
4487-3. Do-it-yourself maintenance
IS300h_EE(OM53C61E)
The meanings of each caution symbol on the top of the 12-volt battery are as fol-
lows:
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following precautions before recharging:
●If recharging with the 12-volt battery installed on the vehicle, be sure to disconnect the
ground cable.
●Make sure the power switch on the charger is off when connecting and disconnecting
the charger cables to the 12-volt battery.
■After recharging/reconnecting the 12-volt battery
●The hybrid system may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the hybrid system.
●Unlocking the doors using the smart entry & start system may not be possible immedi-
ately after reconnecting the 12-volt battery. If this happens, use the wireless remote
control or the mechanical key to lock/unlock the doors.
●Start the hybrid system with the power switch in ACCESSORY mode. The hybrid sys-
tem may not start with the power switch turned off. However, the hybrid system will
operate normally from the second attempt.
●The power switch mode is recorded by the vehicle. If the 12-volt battery is reconnected,
the vehicle will return the power switch mode to the status it was in before the 12-volt
battery was disconnected. Make sure to turn off the power switch before disconnecting
the 12-volt battery. Take extra care when connecting the 12-volt battery if the power
switch mode prior to the 12-volt battery being disconnected is unknown.
If the system will not start even after multiple attempts at all the methods above, contact
any authorized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
Caution symbols
No smoking, no naked
flames, no sparks12-volt battery acid
Shield eyesNote operating instructions
Keep away from childrenExplosive gas
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2
3
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Page 449 of 612
4497-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
CAUTION
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near the 12-volt battery:
●Do not cause sparks by touching the 12-volt battery terminals with tools.
●Do not smoke or light a match near the 12-volt battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the 12-volt battery.
●Keep children away from the 12-volt battery.
■Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt battery in
a garage or closed room where there is insufficient ventilation.
■How to recharge the 12-volt battery
Only perform a slow charge (4 A — 5 A). The 12-volt battery may explode if charged at
a quicker rate.
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immediate medical
attention. If possible, continue to apply water with a sponge or cloth while traveling to
the nearest medical facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical attention
immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the clothing and fol-
low the procedure above if necessary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention immedi-
ately.
■When replacing the 12-volt battery
Use a 12-volt battery designed for this vehicle. Failure to do so may cause gas (hydro-
gen) to enter the passenger compartment, causing a fire or explosion.
For replacement of the 12-volt battery, contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
NOTICE
■When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating. Also, be sure
all accessories are turned off.
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Page 503 of 612
5038-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53C61E)
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 necessar-
ily 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 qualified
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 professional
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 qualified
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 professional
immediately.
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Page 549 of 612
5498-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53C61E)
Once the hybrid system has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the hybrid system starts, have the vehicle inspected at any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as
soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical appli-
ances. If the vehicle is left for a long time, the 12-volt battery may discharge, and the
hybrid system may be unable to start. (The 12-volt battery recharges automatically while
the hybrid system is operating.)
■When recharging or replacing the 12-volt battery
●For vehicles with an alarm: Make sure that the key is not inside the vehicle when
recharging or replacing the 12-volt battery. The key may be locked in the vehicle if the
alarm is activated. (→P. 9 8 )
●In some cases, it may not be possible to unlock the doors using the smart entry & start
system when the 12-volt battery is discharged. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt battery is
reconnected, the system will return to the mode it was in before the 12-volt battery was
discharged. Before disconnecting the 12-volt battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery dis-
charged, be especially careful when reconnecting the 12-volt battery.
8
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