Page 59 of 487
57
1
1-4. Adjustable components (seats, mirrors, steering wheel)
Before driving
RX400h_U
Head restraints
■Adjusting the height of the head restraints
■Adjusting the rear center seat head restraints
Always raise the head restraint to the lock position when using.
CAUTION
■Head restraint precautions
Observe the following precautions regarding the head restraints. Failure to do so
may result in death or serious injury.
●Use the head restraints designed for each respective seat.
●Adjust the head restraints to the correct position at all times.
●Do not drive with the head restraints removed.
Vertical adjustment
Push and hold the lock release
button when lowering the head
restraint.
Angle adjustment *
Removal
Pull the head restraint up while
pushing the lock release button.
*: Front seats only
Lock
release
button
Make sure that the head restraints are
adjusted so that the center of the head
restraint is closest to the top of your ears.
Page 60 of 487
58
1-4. Adjustable components (seats, mirrors, steering wheel)
RX400h_U
Seat belts
Make sure that all occupants are wearing their seat belts before driving the
vehicle.
■Correct use of the seat belts
●Extend the shoulder belt so
that it comes fully over the
shoulder, but does not come
into contact with the neck or
slide off the shoulder.
● Position the lap belt as low as
possible over the hips.
● Adjust the position of the
seatback. Sit up straight and
well back in the seat.
● Do not twist the seat belt.
■ Fastening and releasing the seat belt
Fastening the belt
Push the tab into the buckle until
a clicking sound is heard.
Releasing the belt
Press the release button.
Release button
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1-4. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
RX400h_U
Seat belt comfort guide (outside rear seats)If the shoulder belt sits close to a person's neck, use the seat belt comfort
guide. Pull the comfort guide from the
pocket.
Slide the belt past the slot of the
guide.
The elastic cord must be behind
the seat belt.
■Adjusting the height of the belt (front seats)
Down
Up
Move the height adjuster up and
down as needed until you hear a
click.
STEP1
STEP2
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1-4. Adjustable components (seats, mirrors, steering wheel)
RX400h_U Buckle, position and release the
seat belt.
Seat belt pretensioners (front seats)
The pretensioner helps the seat
belt to quickly restrain the occu-
pant by retracting the seat belt
when the vehicle is subjected to
certain types of severe frontal colli-
sion or a vehicle rollover.
The pretensioner may not activate
in the event of a minor frontal
impact, a side impact or a rear
impact.
STEP3
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1-4. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
RX400h_U
■Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also lock if
you lean forward too quickly. A slow, easy motion will allow the belt to extend so that
you can move around fully.
■Automatic locking retractor (ALR)
When a passenger's shoulder belt is completely extended and then retracted even
slightly, the belt is locked in that position and cannot be extended. This feature is
used to hold the child restraint system (CRS) firmly. To free the belt again, fully
retract the belt and then pull the belt out once more. ( →P. 112)
■Pregnant women
Obtain medical advice and wear the seat belt
in the proper way. (→P. 5 8 )
Women who are pregnant should position
the lap belt as low as possible over the hips in
the same manner as other occupants. Extend
the shoulder belt completely over the shoul-
der and position the belt across the chest.
Avoid belt contact over the rounding of the
abdominal area.
If the seat belt is not worn properly, not only a
pregnant woman, but also the fetus could suf-
fer death or serious injury as a result of sud-
den braking or a collision.
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1-4. Adjustable components (seats, mirrors, steering wheel)
RX400h_U
■People suffering illness
Obtain medical advice and wear the seat belt in the proper way. ( →P. 5 8 )
■Child seat belt usage
The seat belts of your vehicle were principally designed for persons of adult size.
●Use a child restraint system appropriate for the child, until the child become large
enough to properly wear the vehicle's seat belt. ( →P. 1 0 8 )
●When the child becomes large enough to properly wear the vehicle's seat belt,
follow the instructions on P. 58 regarding seat belt usage.
■Replacing the belt after the pr etensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate for the
first collision, but will not activate for the second or subsequent collisions.
■Seat belt extender
CAUTION
Observe the following precautions to reduce the risk of injury in the event of sudden
braking or an accident.
Failing to do so may cause death or severe injury.
■Wearing a seat belt
●Ensure that all passengers wear a seat belt.
●Always wear a seat belt properly.
●Each seat belt should be used by one person only. Do not use a seat belt for more
than one person at once, including children.
●Lexus recommends that children be seated in the rear seat and always use a seat
belt and/or an appropriate child restraint system.
If your seat belts cannot be fastened securely
because they are not long enough, a person-
alized seat belt extender is available from
your Lexus dealer free of charge.
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1-4. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
RX400h_U
CAUTION
●Do not recline the seat any more than necessary to achieve a proper seating
position. The seat belt is most effective when the occupants are sitting up straight
and well back in the seats.
●Do not wear the shoulder belt under your arm.
●Always wear your seat belt low and snug across your hips.
■Seat belt pretensioners
●Do not place anything, such as a cushion, on the front passenger's seat. Doing so
will disperse the passenger's weight, which prevents the sensor from detecting
the passenger's weight properly. As a result, the seat belt pretensioner for the
front passenger's seat may not activate in the event of a collision.
●If the pretensioner has activated, the seat belt becomes locked: it cannot be fur-
ther extended, nor will it return to the stowed position. The seat belt cannot be
used again and must be replaced at your Lexus dealer.
■Child restraint lock function belt
Do not allow children to play with the child restraint lock function belt.
■Seat belt damage and wear
●Do not damage the seat belts by allowing the belt, plate, or buckle to be jammed
in the door.
●Inspect the seat belt system periodically. Check for cuts, fraying, and loose parts.
Do not use a damaged seat belt until it is replaced. Damaged seat belts cannot
protect an occupant from death or serious injury.
●Ensure that the belt and tab are locked and the belt is not twisted.
If the seat belt does not function correctly, immediately contact your Lexus
dealer.
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1-4. Adjustable components (seats, mirrors, steering wheel)
RX400h_U
CAUTION
●Replace the seat assembly, including the belts, if your vehicle has been involved in
a serious accident, even if there's no obvious damage.
●Do not attempt to install, remove, modify, disassemble or dispose of the seat belts.
Have any necessary repairs carried out by your Lexus dealer. Inappropriate han-
dling of the pretensioner may prevent it from operating properly resulting in
death or serious injury.
■Using a seat belt comfort guide
●Make sure the belt is not twisted and that it lies flat. The elastic cord must be
behind the belt and the guide must be on the front.
●To reduce the chance of injury in case of an accident or a sudden stop while driv-
ing, remove and store the comfort guide in its pocket when it is not in use.
●Always make sure the shoulder belt is positioned across the center of the shoul-
der. The belt should be kept away from the neck, and should not fall off the shoul-
der.
Failure to observe these precautions could reduce the effectiveness of the seat
belt in an accident, causing death or serious injury.
■Using a seat belt extender
●Do not wear the seat belt extender if you can fasten the seat belt without the
extender.
●Do not use the seat belt extender when installing a child restraint system because
the belt will not securely hold the child restraint system, increasing the risk of
death or injury in the event of a collision.
●The personalized extender may not be safe on another vehicle, when used by
another person, or at a different seatin g position other than the one originally
intended.
NOTICE
■When using a seat belt extender
When releasing the seat belt, press on the buckle release button on the extender,
not on the seat belt.
This helps prevent damage to the vehicle interior and the extender itself.