LEXUS GS300H 2019 Workshop Manual

511-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30F92E_(EE)
■Types of collisions that may not deploy the SRS airbags (SRS side and curtain shield air- bags)
The SRS side and curtain shield airbags may not activate if the vehicle is subjected to a
collision from the side at certain angles, or a collision to the side of the vehicle body other than the passenger compartment.
The SRS side and curtain shield airbags do not generally inflate if the vehicle is involved in a rear collision, if it rolls over, or if it is involved in a low-speed side or low-speed frontal
collision.
●Collision from the side to the vehicle body other than the passenger compartment
●Collision from the side at an angle
●Collision from the rear
●Vehicle rollover

521-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
■When to contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer
In the following cases, the vehicle will requ ire inspection and/or repair. Contact any
authorized Lexus retailer or Le xus authorized repairer, or any reliable repairer as soon as possible.
●Any of the SRS airbags have been inflated.
●The front of the vehicle is damaged ordeformed, or was involved in an accident that
was not severe enough to cause the SRS front airbags to inflate.
●A portion of a door or it’s surrounding area isdamaged or deformed, or the vehicle was
involved in an accident that was not severe enough to cause the SRS side and curtainshield airbags to inflate.
●The pad section of the steering wheel, dash-board near the front passenger airbag, lowerportion of the instrument panel or door of the
glove box is scratched, cracked, or otherwise damaged.

531-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
●The surface of the seats with the side airbag is scratched, cracked, or otherwise damaged.
●The portion of the front pillars, rear pillars orroof side rail garnishes (padding) containingthe curtain shield airbags inside is scratched,
cracked, or otherwise damaged.

541-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
Airbag manual on-off system
“PASSENGER AIR BAG” indicator
This indicator light turns on when the
airbag system is on (only when the power switch is in ON mode).
Airbag manual on-off switch
This system deactivates the front passenger airbag, front passenger knee air-
bag and front passenger side airbag.
Only deactivate the airbags when using a child restraint system on the front
passenger seat.
1
2

551-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
Insert the mechanical key into the cylin-
der and rotate to the “OFF” position.
The “OFF” indicator light turns on (only
when the power switch is in ON mode).
■“PASSENGER AIR BAG” indicator information
If any of the following problems occur, it is possible that there is a malfunction in the sys- tem. Have the vehicle inspected by any au thorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●Neither “ON” nor “OFF” comes on.
●The indicator light does not change when the airbag manual on-off switch is switchedto “ON” or “OFF”.
Deactivating the front seat passenge r airbag, front passenger knee air-
bag and front passenger side airbag
WARNING
■When installing a child restraint system
For safety reasons, always install a child rest raint system in a rear seat. In the event that
the rear seat cannot be used, the front seat can be used as long as the airbag manual on-off system is set to off.If the airbag manual on-off system is left on, the strong impact of the airbag deployment
(inflation) may cause serious injury or even death.
■When a child restraint system is not installed on the front passenger seat
Ensure that the airbag manual on-off system is set to on.
If it is left off, the airbag may not deploy in the event of an accident, which may result in serious injury or even death.

561-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
Safety information for children
●It is recommended that children sit in the rear seats to avoid accidental con-
tact with the shift lever, wiper switch etc.
●Use the rear door child-protector lock or the window lock switch to avoid
children opening the door while drivin g or operating the power window acci-
dentally. ( P. 143, 193)
●Do not let small children operate equipment which may catch or pinch body
parts, such as the power window, hood, trunk, seats etc.
Observe the following precautions when children are in the vehicle.
Use a child restraint system appropriate for the child, until the child becomes
large enough to properly wear the vehicle’s seat belt.
WARNING
Never leave children unattended in the vehicl e, and never allow children to have or use the key.
Children may be able to start the vehicle or sh ift the vehicle into neutral. There is also a danger that children may injure themselves by playing with the windows, the moon roof (if equipped) or other features of the vehicle. In addition, heat build-up or extremely
cold temperatures inside the vehicle can be fatal to children.

571-1. For safe use
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GS450h_300h_OM_OM30F92E_(EE)
For safety and security
Child restraint systems
Studies have shown that installing a child restraint on a rear seat is much safer
than installing one on the front passenger seat.
●Choose a child restraint system that suits your vehicle and is appropriate to
the age and size of the child.
●For installation details, follow the instructions provided with the child restraint
system.
General installation instructions are provided in this manual. ( P. 66)
●If child restraint system regulations exist in the country where you reside,
please contact any authorized Lexus reta iler or Lexus authorized repairer, or
any reliable repairer for the child restraint system installation.
●Lexus recommends that you use a child restraint system which conforms to
the regulation ECE No.44.
Lexus strongly urges the use of child restraint systems.
Points to remember

581-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
Child restraint systems are classified into the following 5 groups according to the
regulation ECE No.44:
Group 0: Up to 10 kg (22 lb.) (0 - 9 months)
Group 0+: Up to 13 kg (28 lb.) (0 - 2 years)
Group I: 9 to 18 kg (20 to 39 lb.) (9 months - 4 years)
Group II: 15 to 25 kg (34 to 55 lb.) (4 years - 7 years)
Group III: 22 to 36 kg (49 to 79 lb.) (6 years - 12 years)
In this owner’s manual, the following 3 types of popular child restraint systems
that can be secured with the seat belts are explained:
Types of child restraints
Baby seat Child seat
Equal to Group 0 and 0+ of ECE
No.44
Equal to Group 0+ and I of ECE
No.44
Junior seat
Equal to Group II and III of ECE No.44

591-1. For safe use
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For safety and security
GS450h_300h_OM_OM30F92E_(EE)
Information provided in the table shows your child restraint system suitability for
various seating positions.
Child restraint system suitabilit y for various seating positions
Front passenger seat
Rear seatAirbag manual
on-off switch
ONOFFOutboardCenter
0 Up to 10 kg (22 lb.)(0 - 9 months) XU*1U, L X
0+
Up to 13 kg (28 lb.) (0 - 2 years) XU*1U, L X
I
9 to 18 kg (20 to 39 lb.)(9 months - 4 years)
Rear- facing — X U*1U*2XForward-
facing — UF*1
II, III 15 to 36 kg (34 to 79 lb.)
(4 - 12 years)
UF*1U*1U*2X
Mass groups
Seating position

601-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
Key of letters inserted in the above table:
U: Suitable for “universal” category child restraint systems approved for use in
this mass group.
UF: Suitable for forward-facing “universal” category child restraint systems
approved for use in this mass group.
L: Suitable for child restraint systems sh own in the child restraint system list.
X: Not suitable seat position for children in this mass group.
*1: Adjust the front seatback to the most upright position. Move the front seat to the rear-
most position.
If the head restraint interferes with your child restraint system, and the head restraint
can be removed, remove the head restraint.
If the passenger seat is equipped with a vertical height adjuster, it must be placed in
the upper most position.
Follow these procedures:
• For installing a baby seat with support base
If the baby seat interferes with the seatback when latching the baby seat into the support base, adjust the seatback rear ward until there is no interference. • For installing a forward-facing child seat
If there is gap between the child seat and the seatback, tilt the seatback rearward until good contact is achieved.If the seat belt shoulder anchor is ahead of the child seat belt guide, move the seat
cushion forward. • For installing a junior seatIf the child in your child restraint system is in a very upright position, adjust the seat-
back to the most comfortable position. If the seat belt shoulder anchor is ahead of the child seat belt guide, move the seat cushion forward.
*2: If the head restraint interferes with your child restraint system, and the head restraint
can be removed, remove the head restraint.