light Lexus GS450h 2007 Do-it-yourself maintenance / LEXUS 2007 GS450H FROM JULY 2006 PROD. (OM30A05U) Owner's Guide

79
1-8. Safety information
1
Before driving
■System malfunction
*
1: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may recognize him/
her as a child depending on his/her physique and posture.
*
2: In the event the front passenger does not wear a seat belt.
*3: When a large child who has outgrown a child restraint system sits in the front passenger seat, the sys tem may recognize him/her as an
adult depending on his/her physique and posture.
*
4: Never install a rear-facing child restraint system on the front passen- ger seat. A forward-facing child restraint system should only be
installed on the front passenger seat when it is unavoidable. 
( P. 8 2 )
*
5: In case the indicator is not illum inated, consult this manual as for
installing the child restraint system properly. ( P. 8 5 )
Indicator/
warning light “AIRBAG ON” and “AIRBAG OFF”
indicator lights “A I R B A G
OFF”
SRS warning light On
Front passenger’s seat belt reminder light Off
Devices Front passenger airbag and knee airbag
Deactivated
Side airbag in the front passenger seat
Curtain shield airbag
on the front passenger side Activated
Front passenger’s seat belt pretensioner

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1-8. Safety information
CAUTION
■Front passenger occupant classification system precautions
Observe the following precautions regarding the front passenger occupant classifi-
cation system.
●Wear the seat belt properly.
●Make sure the front passenger’s seat belt tab has not been left inserted into the
buckle before someone sits in the front passenger seat.
●Make sure the “AIRBAG OFF” indicator li ght is not illuminated when using the
seat belt extender for th e front passenger seat. If the “AIRBAG OFF” indicator
light is illuminated, disconnect the extender tongue from the seat belt buckle,
then reconnect the seat belt. Reconnect the seat belt extender after making sure
the “AIRBAG ON” indicator light is illumina ted. If you use the seat belt extender
while the “AIRBAG OFF” indicator light is illuminated, the front passenger airbag
and side airbag on the front passenger side may not activate correctly, which
could cause death or serious injury in the event of a collision.
●Do not apply a heavy load to the front passenger seat or equipment.
●Do not put weight on the front passenger seat by putting your hands or feet on
the front passenger seat seatback from the rear seat.
●Do not let a rear seat passenger lift the front passenger seat with their feet or
press on the seatback with their legs.
●Do not put objects under the front passenger seat.
●Do not recline the front passenger seatback so far that it touches a rear seat. This
may cause the “AIRBAG OFF” indicator light to be illuminated, which indicates
that the passenger’s airbags will not deploy in the event of a severe accident. If the
seatback touches the rear se at, return the seatback to a position where it does
not touch the rear seat. Keep the front pa ssenger seatback as upright as possible
when the vehicle is moving. Reclining the seatback excessively may lessen the
effectiveness of the seat belt system.

81
1-8. Safety information
1
Before driving
CAUTION
■Front passenger occupant classification system precautions
●If an adult sits in the front passenger se at, the “AIRBAG ON” indicator light is illu-
iminated. If the “AIRBAG OFF” indicator is illuminated, ask th e passenger to sit
up straight, well back in the seat, feet on the floor, and with the seat belt worn cor-
rectly. If the “AIRBAG OFF” indicator still remain illuminated, either ask the pas-
senger to move to the rear seat, or if th at is not possible, move the front passenger
seat fully rearward.
●When it is unavoidable to install a forw ard-facing child restraint system on the
front passenger seat, install the child rest raint system on the front passenger seat
in the proper order. ( P. 8 5 )
●Do not remove the front seat.
●Do not kick the front passenger seat or subject it to severe impact. Otherwise,
the SRS warning light may come on to indicate a malfunction in the detection sys-
tem. In this case, contact your Lexus dealer immediately.
●Do not use a seat accessory, such as a cushion or seat cover, that covers the seat
cushion surface.
●Child restraint systems installed on the rear seat should not contact the front seat-
backs.

84
1-8. Safety information
CAUTION
■Child restraint precautions
●For effective protection in automobile accidents and sudden stops, a child must
be properly restrained, using a seat belt or child restraint system depending on
the age and size of the child. Holding a child in your arms is not a substitute for a
child restraint system. In an accident, th e child can be crushed against the wind-
shield, or between you and the vehicle's interior.
●Lexus strongly urges the use of a proper child restraint system that conforms to
the size of the child, installed on the rear seat. According to accident statistics, the
child is safer when properly restrained in the rear seat than in the front seat.
●Never install a rear-facing child restraint system on the front passenger seat even
if the “AIRBAG OFF” indicator light is illuminated. In the event of an accident, the
force of the rapid inflation of the front passenger airbag can cause death or seri-
ous injury to the child if the rear-facing child restraint system is installed on the
front passenger seat.
●A forward-facing child restraint system shou ld allowed to be installed on the front
passenger seat only when it is unavoidable. Always move the seat as far back as
possible even if the “AIR BAG OFF” indicator light is illuminated, because the
front passenger airbag could inflate with considerable speed and force. Other-
wise, the child may be killed or seriously injured.
●Do not use the seat belt extender when installing a child restraint system on the
front or rear passenger seat. If installing a child restraint system with the seat belt
extender connected to the seat belt, 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 collision.
●Do not allow the child to lean his/her head or any part of his/her body against the
door or the area of the seat, front pillar or roof side rail from which the side air-
bags or curtain shield airbags deploy even if the child is seated in the child
restraint system. It is dangerous if the side airbags and curtain shield airbags
inflate, and the impact could cause death or serious injury to the child.
●Make sure you have complied with all inst allation instructions provided by the
child restraint manufacturer and that the sy stem is properly secured. If it is not
secured properly, it may cause death or serious injury to the child in the event of a
sudden stop or accident.

86
1-8. Safety information
Installing child restraints using a seat belt (child restraint lock function belt)
■Rear facing child seat Infant/convertible
Place the child seat on the rear
seat facing the rear of the vehicle.
Run the seat belt through the infant
seat and insert the plate into the
buckle. Make sure that the belt is
not twisted.
Fully extend the shoulder belt and
then allow it to retract slightly in
order to activate the ALR lock
mode.
Lock mode allows the seat belt to
retract only.
STEP1
STEP2
STEP3

87
1-8. Safety information
1
Before driving
While pushing the child seat down
into the rear seat, allow the shoul-
der belt to retract until the child
seat is securely in place.
After the shoulder belt has
retracted to a point where there is
no slack in the belt, pull the belt to
check that it cannot be extended.
■Forward facing Convertible child seat
Place the child seat on the seat
facing the front of the vehicle.
Run the seat belt through the child
seat and insert the plate into the
buckle. Make sure that the belt is
not twisted.
Fully extend the shoulder strap and
then allow it to retract slightly into
the ALR lock mode.
Lock mode allows the seat belt to
retract only.
STEP4
STEP1
STEP2
STEP3

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1-8. Safety information
1
Before driving
Removing a child restraint installed with a seat beltPush the buckle release button
and fully retract the seat belt.
Installation with child restraint lower anchoragesType A Widen the gap between
the seat cushion and seat-
back slightly.
Latch the hooks of the
lower straps onto the
anchorages.
If the child restraint has a top
strap, the top strap should be
latched onto the anchorage.
For owners in Canada:
The symbol on a child restraint sys-
tem indicates the presence of a
lower anchorage system.
Canada only
STEP1
STEP2

90
1-8. Safety information
Type BWiden the gap between
the seat cushion and seat-
back slightly.
Latch the buckles onto the
anchorages.
If the child restraint has a top
strap, the top strap should be
latched onto the anchorage.
For owners in Canada:
The symbol on a child restraint sys-
tem indicates the presence of a
lower anchorage system.
Child restraint systems with a top strap
Secure the child restraint using a
seat belt or lower anchors, and
lock the head restraint in place at
the lowest position.
Canada only
STEP1
STEP2
STEP1

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1-8. Safety information
CAUTION
■When installing a child restraint system
Follow the directions given in the child restraint system installation manual and fix
the child restraint system securely in place.
If the child restraint system is not correctly fixed in place, the child may be injured or
even killed in the event of sudden braking or an accident.
●When a booster seat is installed, always ensure that the shoulder belt is posi-
tioned across the center of the child's sh oulder. The belt should be kept away
from the child's neck, but not so that it could fall off the child's shoulder. Failing to
do so may result in death or serious inju ry in the event of an accident or sudden
braking.
●Ensure the belt and tab are securely locked and that the seat belt is not twisted.
●Push and pull the child seat in different directions to be sure it is secure.
●Follow all installation instructions provid ed by the child restraint system manufac-
turer.
●If the driver’s seat interferes with the child
restraint system and prevents it from being
attached correctly, attach the child restraint
system to the right-hand rear seat.
●Only put a forward facing or booster child
seat on the front seat when unavoidable.
When installing a forward facing or
booster child restraint on the front passen-
ger seat, move the seat as far back as possi-
ble even if the “AIRBAG OFF” indicator
light is illuminated. Failing to do so may
result in death or serious injury if the air-
bags deploy (inflate).

When driving2
95
2-1. Driving procedures .................. 96Driving the vehicle ....................... 96
Starting the hybrid system ...... 103
Transmission ................................. 106
Turn signal lever ........................... 110
Parking brake .................................. 111
2-2. Instrument cluster.................... 112 Gauges and meters .................... 112
Indicators and warning 
lights................................................ 116
Multi-information display.......... 119 2-3. Operating the lights and

windshield wipers................. 122
Headlight switch.......................... 122
Fog light switch ........................... 125
Windshield wipers and 
washer .......................................... 126
Headlight cleaner switch ........ 128
2-4. Using other driving 
systems .................................... 129
Cruise control .............................. 129
Dynamic radar cruise 
control ......................................... 132
Intuitive parking assist ................ 141
Rear view monitor system ...... 160
AVS (Adaptive Variable 
Suspension System) ............... 163
Driving assist systems............... 164
PCS (Pre-Collision 
System)......................................... 169
2-5. Driving information................ 172 Cargo and luggage.................... 172
Vehicle load limits ....................... 175
Winter driving tips ...................... 176
Trailer towing.................................. 181
Dinghy towing ............................. 182