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591-1. For safe use
1
For safety and security
RC300h_EE(OM24740E)
●It is recommended that children sit in the rear seats to avoid accidental con-
tact with the shift lever, wiper switch, etc.
●Use the window lock switch to avoid children operating the power window
accidentally.
●Do not let small children operate equipment which may catch or pinch body
parts, such as the power window, hood, trunk, seats etc.
Safety information for children
Observe the following precautions when children are in the vehicle.
Use a child restraint system appropriate for the child, until the child becomes
large enough to properly wea r the vehicle’s seat belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to have or use the key.
Children may be able to start the vehicle or sh ift the vehicle into neutral. There is also a danger that children may injure themselves by playing with the windows, the moon roof or other features of the vehicle. In addition, heat build-up or extremely cold tempera-
tures inside the vehicle can be fatal to children.
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731-1. For safe use
1
For safety and security
RC300h_EE(OM24740E)
If your child restraint system is not
equipped with a lock-off (a seat
belt locking feature), secure the
child restraint system using a
locking clip.
After installing the child restraint system, rock it back and forth to ensure
that it is installed securely.
◆Removing a child restraint system installed with a seat belt
Press the buckle release button and
fully retract the seat belt.
When releasing the buckle, the child restraint system may spring up due tothe rebound of the seat cushion.
Release the buckle while holding down the child restraint system.
Since the seat belt automatically
reels itself, slowly return it to the stowing position.
■When installing a child restraint system
You may need a locking clip to install the child restraint system. Follow the instructions provided by the manufacturer of the system. If your child restraint system does not pro-
vide a locking clip, you can purchase the following item from any authorized Lexus dealer or repairer, or another duly qualified and equipped professional: Locking clip for child restrain t system (Part No. 73119-22010)
5
6
Page 74 of 640

741-1. For safe use
RC300h_EE(OM24740E)
WARNING
■When installing a child restraint system
Observe the following precautions. Failure to do so may result in death or serious injury.
●Do not allow children to play with the seat belt. If the seat belt becomes twistedaround a child’s neck, it may lead to choking or other serious injuries that could resultin death. If this occurs and the buckle ca nnot be unfastened, scissors should be used
to cut the belt.
●Ensure that the belt and plate are securely locked and the seat belt is not twisted.
●Shake the child restraint system left and right, and forward and backward to ensure
that it has been securely installed.
● After securing a child restrain t system, never adjust the seat.
●When a junior seat is installed, always ensure that the shoulder belt is positioned
across the center of the child’s shoulder. Th e belt should be kept away from the child’s neck, but not so that it could fall off the child’s shoulder.
●Follow all installation instructions provided by the child restraint system manufacturer.
Page 79 of 640

791-1. For safe use
1
For safety and security
RC300h_EE(OM24740E)
Key of letters inserted in the above table:
IUF: Suitable for ISOFIX forward-facing child restraint systems of universal cat-
egory approved for use in this mass group.
IL: Suitable for ISOFIX child restraint systems of the categories for “specific
vehicles”, “restricted”, or “semi-universal”, approved for use in this mass
group.
X: ISOFIX position not suitable for ISOFIX child restraint systems in this mass
group and/or this size class.
*1: When installing an ISOFIX child restraint system on a rear seat, move the front seat as
far forward as possible.
*2: If the head restraint interferes with your child restraint system, and the head restraint
can be removed, remove the head restraint.
When using a “LEXUS MINI” or “LEXUS MIDI”, adjust the support leg and
ISOFIX connectors as follows:
Lock the ISOFIX connectors
where numbers 5 can be seen.
Lock the support leg where
3rd hole can be seen.
●Adjust the front seat so that it does not interfere with the child or child restraint
system.
●The child restraint systems mentioned in the table may not be available out-
side of the EU area.
●Other child restraint systems different from the systems mentioned in the
table can be used, but the suitability of the systems must be carefully checked
with the child restraint system manufacturer and retailer.
1
2
Page 90 of 640

901-2. Hybrid system
RC300h_EE(OM24740E)
There is an air intake vent on the right
side of the rear seat back for the pur-
pose of cooling the hybrid battery
(traction battery). If the vent becomes
blocked, the hybrid battery may over-
heat, leading to a reduction in hybrid
battery output.
When a certain level of impact is detected by the impact sensor, the emergency
shut off system blocks the high voltage current and stops the fuel pump to mini-
mize the risk of electrocution and fuel leakage. If the emergency shut off system
activates, your vehicle will not restart. To restart the hybrid system, contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional.
A message is automatically displayed when a malfunction occurs in the hybrid
system or an improper operation is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
( P. 542)
Hybrid battery (traction battery) air intake vent
Emergency shut off system
Hybrid warning message
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941-2. Hybrid system
RC300h_EE(OM24740E)
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 dealer or repairer, or an other duly qualified and equipped profes- sional. Do not dispose of the battery yourself.
Unless the battery is properly collected, the following may occur, resulting in death
or serious injury:
• The hybrid battery may be illegally dispos ed 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 batterymust be disposed of by any authorized Lexu s dealer or repairer, or another duly qual-
ified and equipped professional. 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 shortcircuit 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 (tract ion battery), the battery may be damaged. Have the vehicle inspected by any authorized Lexus dealer or repairer, or anotherduly qualified and equipped professional.
Page 101 of 640
1011-3. Theft deterrent system
1
For safety and security
RC300h_EE(OM24740E)
Vehicles employing this system have
labels on the side windows.
Turn the power switch off, have all the passengers exit the vehicle and ensure that
both side doors are closed.
Using the entry function:
Touch the sensor area on the outside door handle twice within 5 seconds.
Using the wireless remote control:
Press twice within 5 seconds.
Using the entry function: Hold the outside door handle.
Using the wireless remote control: Press .
Double locking system
Unauthorized access to the vehicle is pr evented by disabling the door unlock-
ing function from both the interior and exterior of the vehicle.
Setting the double locking system
Canceling the double locking system
WARNING
■Double locking system precaution
Never activate the double locking system when there are people in the vehicle because both side doors cannot be opened from inside the vehicle.
Page 102 of 640
1021-3. Theft deterrent system
RC300h_EE(OM24740E)
The alarm uses light and sound to give an alert when an intrusion is detected.
The alarm is triggered in the following situations when the alarm is set:
●A locked door or trunk is unlocked or opened in any way other than using the
entry function or wireless remote control. (The door will lock again automati-
cally.)
●The hood is opened.
●The intrusion sensor detects something moving inside the vehicle. (Example:
an intruder breaks a window and gets into the vehicle.) (if equipped)
●The tilt sensor detects a change of vehicle inclination. (if equipped)
Close the doors, trunk and hood, and
lock both side doors using the entry
function or wireless remote control.
The system will be set automatically
after 30 seconds.
The indicator light changes from being
on to flashing when the system is set.
Alarm
: If equipped
The alarm
Setting the alarm system