LEXUS RX300H 2017 Manual Online

811-1. For safe use
1
For safety and security
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.
●Shake the child restraint system left and right, and forward and backward to ensurethat it has been securely installed.
●After securing a child restraint system, never adjust the seat.
●When using the lower anchors, be sure that there are no foreign objects around the anchors and that the seat belt is not caught behind the child restraint system.
●Follow all installation instructions provided by the child restraint system manufacturer.

821-1. For safe use
RC300h_EE(OM24740E)
■Anchor brackets (for top strap)
Anchor brackets are provided for the each rear seat.
Use anchor brackets when fixing the
top strap.
■Fixing the top strap to the anchor bracket
Install the child restraint system in accordance to the operation manual
enclosed with the child restraint system.
Remove the head restraint if it
interferes with your child restraint
system. ( P. 186)
Open the anchor bracket cover,
latch the hook onto the anchor
bracket and tighten the top strap.
Make sure the top strap is
securely latched.
Using an anchor bracket (for top strap)
Top strap
Anchor brackets
1
Hook
Top strap
2

831-1. For safe use
1
For safety and security
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.
●Firmly attach the top strap and make sure that the belt is not twisted.
●Do not attach the top strap to anything other than the anchor bracket.
●Shake the child restraint system left and right, and forward and backward to ensure
that it has been securely installed.
●After securing a child restraint system, never adjust the seat.
●Follow all installation instructions provided by the child restraint system manufacturer.
NOTICE
■Anchor brackets (for top strap)
When not in use, make certain to close the lid. If it remains open, the lid may be dam-
aged.

841-1. For safe use
RC300h_EE(OM24740E)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and odorless. Observe the following precautions.Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident
caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle even when the trunk lid is closed, open the windows and have the vehicle inspected at any authorized Lexus dealer or repairer,or another duly qualified and equipped professional as soon as possible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop the hybrid system.
●Do not leave the vehicle with the hybrid system on for a long time.If such a situation cannot be avoided, park the vehicle in an open space and ensurethat exhaust fumes do not enter the vehicle interior.
●Do not leave the hybrid system operating in an area with snow build-up, or where it is snowing. If snowbanks build up around the vehicle while the hybrid system is operat- ing, exhaust gases may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack caused by corrosion, damage to a joint or abnormal exhaust noise, be sure to have the vehicle
inspected and repaired by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.

85
1
For safety and security
RC300h_EE(OM24740E)
1-2. Hybrid system
The illustration is an example for explanation and may differ from the actual item.
Hybrid system features
Your vehicle is a hybrid vehicle. It has characteristics different from conven-
tional vehicles. Be sure you are closely familiar with the characteristics of your
vehicle, and operate it with care.
The hybrid system combines the use of a gasoline engine and an electric
motor (traction motor) according to dr iving conditions, improving fuel effi-
ciency and reducing exhaust emissions.
Gasoline engine Electric motor (Traction motor)12

861-2. Hybrid system
RC300h_EE(OM24740E)
◆When stopped/during start off
The gasoline engine stops* when the vehicle is stopped. During start off, the
electric motor (traction motor) drives the vehicle. At slow speeds or when
traveling down a gentle slope, the engine is stopped* and the electric motor
(traction motor) is used.
When the shift lever is in N, the hybrid battery (traction battery) is not being
charged.
*: When the hybrid battery (traction battery) requires charging or the engine is warm-
ing up, etc., the gaso line engine will not automatically stop.
( P. 87)
◆During normal driving
The gasoline engine is predominantly used. The electric motor (traction
motor) charges the hybrid battery as necessary.
◆When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the hybrid bat-
tery (traction battery) is added to that of the gasoline engine via the electric
motor (traction motor).
◆When braking (regenerative braking)
The wheels operate the electric motor (traction motor) as a power generator,
and the hybrid battery (traction battery) is charged.
■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 with the shift lever in D or S.
●The brake pedal is depressed with the shift lever in D or S.

871-2. Hybrid system
1
For safety and security
RC300h_EE(OM24740E)
■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 (traction 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 (traction battery) becomes fully discharged and you are unable to start the hybrid system, contact any authorized Lexus dealer or repairer, oranother duly qualified and equipped professional.
■Charging the 12-volt battery
 P. 584
The EV indicator comes on when the vehicle is
driven using only the electric motor (traction motor) or the gasoline engine is stopped.

881-2. Hybrid system
RC300h_EE(OM24740E)
■After the 12-volt battery has discharged or when the terminal has been removed and installed during exchange, etc.
The gasoline engine may not stop even if the vehicle is being driven by the hybrid battery
(traction battery). If this continues for a few days, contact any authorized Lexus dealer or repairer, or another duly qua lified and equipped professional.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration ev en though the vehicle is able to move with the “READY” indicator is illuminated. For sa fety, apply the parking brake and make sure to shift the shift lever to P when parked.
The following sounds or vibrations may occu r when the hybrid system is operating and are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid batter y (traction battery) under the rear seats when the hybrid system starts or stops.
●Relay operating sounds such as a snap or so ft clank will be emitted from the hybrid bat-
tery (traction battery), under the rear seat s, when the hybrid system is started or stopped.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmission when the gasoline engine starts or stops, when driving at low speeds, or during idling.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is depressed or as the accelerator pedal is released.
●Vibration may be felt when the gasoline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vent on the side of the rear seat back.
■Maintenance, repair, recycling, and disposal
Contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional regarding maintenance, repair, re cycling and disposal. Do not dispose of the
vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features P. 607)

891-2. Hybrid system
1
For safety and security
RC300h_EE(OM24740E)
The illustration is an example for explanation and may differ from the actual item.
Hybrid system precautions
Take care when handling the hybrid system, as it is a high voltage system
(about 650 V at maximum) as well as contains parts that become extremely
hot when the hybrid system is operatin g. Obey the warning labels attached to
the vehicle.
Warning label
Power control unit
Electric motor (traction motor)
Hybrid battery (traction battery)
Service plug
High voltage cables (orange)
Air conditioning compressor
1
2
3
4
5
6
7

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