ECU LEXUS NX300h 2015 Owner's Guide

70 1-1. For safe use
NX300h_U_OM78007U WA R N I N G ■
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 twisted
around a child’s neck, it may lead to chokin g or other serious injuries that could result
in death.
If this occurs and the buckle cannot be unfa stened, 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 restraint system, never adjust the seat. ●
When a booster seat is installed, always en sure that the shoulder belt is positioned
across the center of the child’s shoulder. The 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.●
When securing some types of child restraint systems in rear seats, it may not be possi-
ble to properly use the seat belts in positi ons next to the child restraint without inter-
fering with it or affecting se at belt effectiveness. Be sure your seat belt fits snugly
across your shoulder and low on your hips. If it does not, or if it interferes with the child
restraint, move to a different position. Failur e to do so may result in death or serious
injury. ●
When installing a child restraint system in the rear center seat, adjust both seatbacks
at the same angle. Otherwise, the child restraint system cannot be securely
restrained and this may cause death or seriou s injuries in the even t of sudden braking,
sudden swerving or an accident. ■
When installing a booster seat
To prevent the belt from going into ALR lock mode, do not fully extend the shoulder
belt. ALR mode causes the belt to tighten on ly. This could cause injury or discomfort to
the child. (  P. 3 6 )■
Do not use a seat belt extender
If a seat belt extender is used when instal ling a child restraint system, the seat belt will
not securely hold the child restraint system, which could cause death or serious injury
to the child or other passengers in the event of sudden braking, sudden swerving or an
accident.

711-1. For safe use
1
For safety and security
NX300h_U_OM78007U ■
Child restraint LATCH anchors
LATCH anchors are provided for
the outboard rear seats. (Buttons
displaying the location of the
anchors are attached to the seats.) ■
Installation with LATCH system
Install the child restraint system in accordance to the operation manual
enclosed with the child restraint system.
Adjust the seatback
If there is gap between the child seat and the seatback, adjust the seatback
until good contact is achieved.
If the head restraint interferes
with the child restraint system
installation and the head restraint
can be removed, remove the
head restraint. (  P. 1 5 8 )
Widen the gap between the seat cushion and seatback slightly.Child restraint system fixed with a child restraint LATCH anchor
1
2
3

72 1-1. For safe use
NX300h_U_OM78007U 
Ty p e A
Latch the hooks of the lower
straps onto the LATCH anchors.
For owners in Canada:
The symbol on a child restraint
system indicates the presence of
a lower connector system. 
Ty p e B
Latch the buckles onto the
LATCH anchors.
For owners in Canada:
The symbol on a child restraint
system indicates the presence of
a lower connector system.
After installing the child restraint syst em, rock it back and forth to ensure
that it is installed securely. Canada only4
Canada only4
5

731-1. For safe use
1
For safety and security
NX300h_U_OM78007U ■
Laws and regulations pertaining to anchors
The LATCH system conforms to FMVSS225 or CMVSS210.2.
Child restraint systems conforming to FMVS S213 or CMVSS213 specifications can be
used.
This vehicle is designed to conform to SAE J1819.
■
Anchor brackets (for top tether strap)
Anchor brackets are provided for
each rear seat.
Use anchor brackets when fixing the
top strap. WA R N I N G ■
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 ensure
that it has been securely installed. ●
After securing a child restraint system, never adjust the seat. ●
When using the LATCH 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.●
When securing some types of child restraint systems in rear seats, it may not be possi-
ble to properly use the seat belts in positi ons next to the child restraint without inter-
fering with it or affecting se at belt effectiveness. Be sure your seat belt fits snugly
across your shoulder and low on your hips. If it does not, or if it interferes with the child
restraint, move to a different position. Failur e to do so may result in death or serious
injury.
Using an anchor bracket (for top tether strap) Anchor
brackets Rear center seat
Outboard rear seats

74 1-1. For safe use
NX300h_U_OM78007U ■
Fixing the top tether strap to the anchor bracket
Install the child restraint system in accordance to the operation manual
enclosed with the child restraint system. 
Outboard rear seats
Adjust the head restraint to the
upmost position. If the head restraint interferes with
the child restraint system installation
and the head restraint can be
removed, remove the head restraint.
(  P. 1 5 8 )
Open the anchor bracket cover,
latch the hook onto the anchor
bracket and tighten the top tether
strap. Make sure the top tether strap is
securely latched.
When installing the child restraint
system with the head rest being
raised, be sure to have the top tether
strap pass underneath the head rest. 
Rear center seat
Adjust the head restraint to the
downmost position. If the head restraint interferes with
the child restraint system installation
and the head restraint can be
removed, remove the head restraint.
(  P. 1 5 8 ) 1
Hook
Top tether strap2
1

751-1. For safe use
1
For safety and security
NX300h_U_OM78007U Open the anchor bracket cover,
latch the hook onto the anchor
bracket and tighten the top tether
strap. Make sure the top tether strap is
securely latched.
When installing the child restraint
system with the head rest being
lower, be sure to have the top tether
strap pass over the top of the head
rest.■
Laws and regulations pertaining to anchors
The LATCH system conforms to FMVSS225 or CMVSS210.2.
Child restraint systems conforming to FMVS S213 or CMVSS213 specifications can be
used.
This vehicle is designed to conform to SAE J1819. Hook Top tether
strap2
WA R N I N G ■
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 tether strap and make sure that the belt is not twisted. ●
Do not attach the top tether 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.●
Outboard rear seats: When installing the child restraint system with the head rest
being raised, after the head rest has been raised and then the anchor bracket has
been fixed, do not lower the head rest. ●
Rear center seat: When insta lling the child restraint system with the head rest being
lowered, be sure to have the top tether strap pass over the top of the head rest. If the
belt passes below the head rest, it is possib le that the child restraint system may not be
securely fixed.
NOTICE ■
Anchor brackets (for top tether strap)
When not in use, make certain to close the lid. If it remains open, the lid may be dam-
aged.

771-2. Hybrid system
1
For safety and security
NX300h_U_OM78007UHybrid system features
The illustration is an example for explanation and may differ from the actual item.
Gasoline engine
Front electric motor (traction motor)
Rear electric motor (traction motor)
*
* : AWD models onlyYour vehicle is a hybrid vehicle. It ha s 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.
1
2
3

791-2. Hybrid system
1
For safety and security
NX300h_U_OM78007U ■
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 driv ing with the shift lever in D or S.■
EV indicator
■
Conditions in which the ga soline 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 (t raction 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 ever y few months for at least 30 minutes or 10
miles (16 km). If the hybrid battery (tractio n battery) becomes fully discharged and you
are unable to start the hybrid system, contact your Lexus dealer. ■
Charging the 12-volt battery
 P. 5 9 7 ■
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 ve hicle is being driven by the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.The EV indicator comes on when the vehicle is
driven using only the electric motor (traction
motor) or the gasoline engine is stopped.

811-2. Hybrid system
1
For safety and security
NX300h_U_OM78007UHybrid system precautions
The illustration is an example for explanation and may differ from the actual item.
* : AWD models onlyTake 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 operating. Obey the warning labels attached to
the vehicle.
Warning label
Hybrid battery (traction battery)
Rear electric motor (traction
motor)
*Service plug High voltage cables (orange)
Front electric motor (traction
motor)
Power control unit
Air conditioning compressor1
2
3
4 5
6
7
8

831-2. Hybrid system
1
For safety and security
NX300h_U_OM78007U ■
If a warning light comes on, a warning message is displayed, or the 12-volt battery is dis-
connected
The hybrid system may not start. In this case, try to start the system again. If the “READY”
indicator does not come on, contact your Lexus dealer. ■
Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to make the low fuel level warning light (  P. 5 6 7 )
go off. If there is only a small amount of fu el, the hybrid system may not be able to start.
(The standard amount of fuel is about 2.7 gal. [10.1 L, 2.2 Imp.gal.], when the vehicle is on
a level surface. This value may vary when the vehicle is on a slope. Add extra fuel when
the vehicle is inclined.) ■
Electromagnetic waves ●
High voltage parts and cables on hybrid ve hicles incorporate electromagnetic shield-
ing, and therefore emit approximately the same amount of electromagnetic waves as
conventional gasoline powered vehicl es or home electronic appliances.●
Your vehicle may cause sound interference in some third party-produced radio parts. ■
Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of the hybrid
battery (traction battery) can change in accordance with driving style and driving condi-
tions.
WA R N I N G ■
High voltage precautions
This vehicle has high voltage DC and AC systems 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 star ting 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. ●
Never try to open the service plug access
hole located underneath the rear seats. The
service plug is used only when the vehicle is
serviced and is subject to high voltage.