2017 Lexus IS300h battery

841-2. Hybrid system
IS300h_EE(OM53D89E)
WARNING
■High voltage precautions
This vehicle has high voltage DC and AC sy stems as well as a 12-volt system. DC and
AC high voltage is very dangerous and can cause severe burns and electric shock that
may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts, cables or their
connectors.
●The hybrid system will become hot after starting as the system uses high voltage. Be careful of both the high voltage and the hi gh temperature, and always obey the warn-
ing labels attached to the vehicle.
■Road accident cautions
Observe the following precautions to reduce the risk of death or serious injury:
●Pull your vehicle off the road, apply the parking brake, shift the shift lever to P, and turn the hybrid system off.
●Do not touch the high voltage parts, cables and connectors.
●If electric wires are exposed inside or ou tside your vehicle, an electric shock may occur. Never touch exposed electric wires.
●If a fluid leak occurs, do not touch the flui d as it may be strong alkaline electrolyte
from the hybrid battery (traction battery). If it comes into contact with your skin or
eyes, wash it off immediately with a large amount of water or, if possible, boric acid solution. Seek immedi ate medical attention.
●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible. Never use a
fire extinguisher that is not meant for electric fires. Using even a small amount of water may be dangerous.
●If your vehicle needs to be towed, do so with rear wheels raised. If the wheels con-
nected to the electric motor (traction motor) are on the ground when towing, the motor may continue to generate elec tricity. This may cause a fire. (P. 568)
●Carefully inspect the ground under the vehicle. If you find that liquid has leaked onto
the ground, the fuel system may have been damaged. Leave the vehicle as soon as possible.
●Never try to open the service plug accesshole located under the luggage under tray.
The service plug is used only when the vehicle
is serviced and is su bject to high voltage.

851-2. Hybrid system
1
For safety and security
IS300h_EE(OM53D89E)
WARNING
■Hybrid battery (traction battery)
●Never resell, hand over or modify the hybrid battery. To prevent accidents, hybrid
batteries that have been removed from a disposed vehicle are collected through any
authorized Lexus retailer or Lexus authoriz ed repairer, or any reliable repairer. Do not dispose of the battery yourself.
Unless the battery is properly collected, th e following may occur, resulting in death
or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and it is hazardous to
the environment or someone may touch a high voltage part, resulting in an electric
shock. • The hybrid battery is intended to be used exclusively with your hybrid vehicle. If
the hybrid battery is used outside of your vehicle or modified in any way, accidents
such as electric shock, heat generation , smoke generation, an explosion and elec- trolyte leakage may occur.
When reselling or handing over your vehicle, the possibility of an accident is
extremely high because the person receiving the vehicle may not be aware of these dangers.
●If your vehicle is disposed of without the hybrid battery having been removed, there is
a danger of serious electric shock if high voltage parts, cables and their connectors are touched. In the event that your vehicle must be disposed of, the hybrid battery
must be disposed of by any authorized Lexu s retailer or Lexus authorized repairer, or
any reliable repairer. If the hybrid battery is not disposed of properly, it may cause electric shock that can result in death or serious injury.
NOTICE
■Hybrid battery (traction battery) air intake vent
●Do not place objects that will block the air intake vent. The hybrid battery (traction
battery) may overheat and be damaged.
●Clean the air intake vent regularly to prevent the hybrid battery (traction battery) from overheating.
●Do not get water or foreign materials in the air intake vent as this may cause a short
circuit and damage the hybrid battery (traction battery).
●Do not carry large amounts of water such as water cooler bottles in the vehicle. If
water spills onto the hybrid battery (traction battery), the battery may be damaged.
Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

941-3. Theft deterrent system
IS300h_EE(OM53D89E)
■Triggering of the alarm
The alarm may be triggered in the following situations: (Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, depending on the situ ation, the door may automatically lock to
prevent improper entry into the vehicle:
●The doors are unlocked manually without the mechanical key and the alarm is trig- gered.
●While the alarm is operating, the doors ar e unlocked manually without the mechanical
key.
●When recharging or replacing the 12-volt battery
●The doors or trunk are unlocked using the mechanical key.
●A person inside the vehicle opens a door, the
trunk or hood, or unlocks the vehicle using a
inside lock button.
●The 12-volt battery is recharged or replaced
when the vehicle is locked. ( P. 633)
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation of
the system cannot be guaranteed.

1092. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53D89E)
■Hybrid System Indicator
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline en gine power is not being used very often.
The gasoline engine will automatically st op and restart under various conditions.
Eco area
Shows that the vehicle is being dr iven in an Eco-friendly manner.
Power area
Shows that an Eco-friendly driving range is being exceeded (during full power driving
etc.)
●Depending on the selected driving mode, the Hybrid System Indicator or tachometer will be displayed. The Hybrid System Indica tor or tachometer can be set to always be
displayed on of the multi-information display. (P. 119)
●The Hybrid System Indicator is displayed in the following situations:
• When the tachometer setting is set to change according to the driving mode and a
driving mode other than sport mode is selected • When the tachometer setting is set to al ways display the Hybrid System Indicator
●By keeping the indicator needle (except F SPORT models) or bar display (F SPORT models) within the Eco area, more Ec o-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 refe rs to the conversion of energy created by
the movement of the vehicle into electrical energy.
Except F SPORT modelsF SPORT models
1
2
3
4

1262. Instrument cluster
IS300h_EE(OM53D89E)
NOTICE
■While setting up the display
To prevent 12-volt battery discharge, ensure that the hybrid system is operating while
setting up the display features.

1292. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53D89E)
These images are examples only, and may vary slightly from actual conditions.
When the vehicle is
powered by both the gasoline engine and
the electric motor
(traction motor)
When the vehicle is powered by the gaso-
line engine
When the vehicle is
charging the hybrid battery (traction bat-
tery)
When there is no energy flow
Hybrid battery (trac-
tion battery) status
LowFullLowFull
Audio system screenMulti-information display

1393-1. Key information
3
Operation of each component
IS300h_EE(OM53D89E)
To take out the mechanical key, push
the release button and take the key out.
The mechanical key can only be
inserted in one direction, as the key only
has grooves on one side. If the key can- not be inserted in a lock cylinder, turn it
over and re-attempt to insert it.
After using the mechanical key, store it in the electronic ke y. Carry the mechan-
ical key together with the electronic key.
If the electronic key battery is depleted or the entry function does not operate
properly, you will ne ed the mechanical
key. ( P. 628)
Using the mechanical key

1403-1. Key information
IS300h_EE(OM53D89E)
■Card key (if equipped)
●The card key is not waterproof.
●The mechanical key that is stored inside the card key should be used only if a problem arises, such as when the card key does not operate properly.
●If it is difficult to take out the mechanical key, push down the lock release button using a
pen tip etc. If it is still difficul t to pull it out, use a coin etc.
■When required to leave the vehicle’s key with a parking attendant
Set the luggage security system ( P. 153) on and lock the glove box (P. 485) as cir- cumstances demand.
Remove the mechanical key for your own use and provide the attendant with the elec-
tronic key only.
■If you lose your mechanical keys
New genuine mechanical keys can be made by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer using the other mechanical key and the key number stamped on your key number plate. Keep the plate in a safe place such as your
wallet, not in the vehicle.
●To store the mechanical key in the card key,
insert it while pressing the lock release button.
●If the battery cover is not installed and the bat- tery falls out or if the battery was removed
because the key got wet, reinstall the battery
with the positive terminal facing the Lexus emblem.