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*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. 113)
*
5: In case the indicator is not illum inated, consult this manual as for 
installing the child restraint system properly. ( P. 117)
CAUTION
■Front passenger occupant classi fication system precautions
Observe the following precautions regarding the front passenger occupant classifi-
cation system.
Failure to do so may cause death or serious injury.
●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. 
         
        
        
     
        
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CAUTION
■Front passenger occupant classification system precautions
●If an adult sits in the front passenger se at, the “AIR BAG ON” indicator light is illu-
minated. If the “AIR BAG OFF” indicator is illuminated,  ask the passenger to sit 
up straight, well back in the seat, feet on  the floor, and with the seat belt worn cor-
rectly. If the “AIR BAG 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 forward-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.  1 1 7 )
●Do not modify or 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. 
         
        
        
     
        
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1-8. Safety information
Before driving
GS_HV_U
December 12, 2007 3:50 pm
Child restraint systems
Points to rememberStudies have shown that installing a ch ild restraint on a rear seat is much 
safer than installing one to the front passenger seat. 
● Choose a child restraint system approp riate to the age and size of the 
child. 
● For installation details, follow the ins tructions provided with the child 
restraint system.  
General installation instructions ar e provided in this manual. (P. 117)
Types of child restraints
Child restraint systems are classified  into the following 3 types according 
to the age and size of the child. 
Infant seat
A child restraint system for a small child or baby must itself be properly 
restrained on the seat with the lap portion of the lap/shoulder belt.
The laws of all 50 states of the U.S.A. and Canada now require the use of 
child restraint systems. 
         
        
        
     
        
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Convertible seat
Booster seat
■Selecting an appropriate child restraint system
Get an appropriate child restraint system for the child. If a child is too large for a 
child restraint system, sit the child on a re ar seat and use the vehicle’s seat belt. 
(  P. 66) 
         
        
        
     
        
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Before driving
GS_HV_U
December 12, 2007 3:50 pm
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, the 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 “AIR BAG 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. 
         
        
        
     
        
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CAUTION
■Child restraint precautions
●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.
■When the child restraint system is not in use
●Keep the child restraint system properly secure d on the seat even if it is not in use. 
Do not store the restraint unsecured in the passenger compartment.
●If it is necessary to detach the child restraint system, remove it from the vehicle or 
store it securely in the trunk. This will  prevent it from injuring passengers in the 
event of a sudden stop or accident. 
         
        
        
     
        
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1-8. Safety information
Before driving
GS_HV_U
December 12, 2007 3:50 pm
Installing child restraints
Follow the child restraint system manufacturer’s instructions. Firmly 
secure child restraints to the outboard rear seats using a seat belt or a child 
restraint lower anchors belt. Attach the top strap when installing a child 
restraint.
Seat belts equipped with a 
child restraint locking mecha-
nism (ALR/ELR belts except 
driver’s seat belt)
Child restraint lower anchors
Lower anchors are provided for 
the outboard rear seats. (But-
tons displaying the location of 
the anchors are attached to the 
seats.) 
Anchor bracket 
(for top strap)
Anchor brackets are provided 
for all rear seats. 
         
        
        
     
        
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Installing child restraints using a seat belt (child restraint lock function belt)
■Rear-facing  Infant seat/convertible seat
Place the child restraint system on 
the rear seat facing the rear of the 
vehicle.
Run the seat belt through the child 
restraint system 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