LEXUS LS600H 2015 Workshop Manual

491-1. For safe use
1
For safety and security
LS600hL_U(OM50E41U)
CAUTION
■Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications with-
out consulting your Lexus dealer. The SRS airbags may malfunction or deploy
(inflate) accidentally, causing death or serious injury.
●Installation, removal, disassembl y and repair of the SRS airbags
●Repairs, modifications, removal or replacement of the steering wheel, instrument
panel, dashboard, seats or seat upholstery, front, side and rear pillars or roof side
rails
●Repairs or modifications of the front fend er, front bumper, or side of the occupant
compartment
●Installation of a grille guard (bull bars, kangaroo bar, etc.), snow plows, winches
●Modifications to the vehicle’s suspension system
●Installation of electronic devices such as mobile two-way radios and CD players
●Modifications to your vehicle for a person with a physical disability

501-1. For safe use
LS600hL_U(OM50E41U)
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying (inflating)
SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as well as
the seats, parts of the front and rear pillars, and roof side rails may be hot for several
minutes. The airbag it self may also be hot.
●The windshield may crack.
●For Lexus Enform Safety Connect subscriber s, if the SRS airbags deploy or in the
event of a severe rear-end collision, the system is designed to send an emergency
call to the response center, notifying them of the vehicle’s location (without needing
to push the “SOS” button) and an agent wi ll attempt to speak with the occupants to
ascertain the level of emergency and assistance required. If the occupants are
unable to communicate, the agent automatically treats the call as an emergency
and helps to dispatch the necessary emergency services. ( P. 4 1 0 )
■SRS airbag deployment conditions (SRS front airbags and SRS seat cushion air-
bag)
●The SRS front airbags and SRS seat cushion airbag will deploy in the event of an
impact that exceeds the set threshold level (the level of force corresponding to an
approximately 12 - 18 mph [20 - 30 km/h] frontal collision with a fixed wall that
does not move or deform).
However, this threshold velocity will be considerably higher in the following situa-
tions:
• If the vehicle strikes an object, such as a parked vehicle or sign pole, which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in which the front of the vehicle “underrides”, or goes under, the bed of a truck
●Depending on the type of collision, it is po ssible that only the seat belt pretension-
ers will activate.
●The SRS front airbags for the front passenger will not activate if there is no passen-
ger sitting in the front passenger seat. Ho wever, the SRS front airbags for the front
passenger may deploy if luggage is put in the seat, even if the seat is unoccupied.
(  P. 5 5 )

511-1. For safe use
1
For safety and security
LS600hL_U(OM50E41U)
■SRS airbag deployment conditions (SRS side and curtain shield airbags)
●The SRS side and curtain shield airbags will deploy in the event of an impact that
exceeds the set threshold level (the level of force corresponding to the impact
force produced by an approximately 3300 lb. [1500 kg] vehicle colliding with the
vehicle cabin from a direction perpendicular to the vehicle orientation at an
approximate speed of 12 - 18 mph [20 - 30 km/h]).
●The SRS curtain shield airbags may also deploy in the event of a severe frontal colli-
sion.
■Conditions under which the SRS airbags may deploy (inflate), other than a collision
(SRS front airbags, SRS curtain shield airbag and SRS seat cushion airbag)
The SRS front airbags, SRS curtain shield airbag and SRS seat cushion airbag may
also deploy if a serious impact occurs to the underside of your vehicle. Some exam-
ples are shown in the illustration.
■Types of collisions that may not deploy the SRS airbags (SRS front airbags and SRS
seat cushion airbag)
The SRS front airbags and SRS seat cushion airbag do not generally inflate if the
vehicle is involved in a side or rear collision, if it rolls over, or if it is involved in a low-
speed frontal collision. But, whenever a collision of any type causes sufficient for-
ward deceleration of the vehicle, deployment of the SRS front airbags and SRS seat
cushion airbag may occur.
●Hitting a curb, edge of pavement or hard
surface
●Falling into or jumping over a deep hole
●Landing hard or falling
●Collision from the side
●Collision from the rear
●Vehicle rollover

521-1. For safe use
LS600hL_U(OM50E41U)
■Types of collisions that may not deploy the SRS airbags (SRS side and curtain shield
airbags)
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 airbags do not generally inflate if the vehicle is involved in a frontal or
rear collision, if it rolls over, or if it is involved in a low-speed side collision.
The SRS 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 front
●Collision from the rear
●Vehicle rollover
●Collision from the rear
●Vehicle rollover

531-1. For safe use
1
For safety and security
LS600hL_U(OM50E41U)
■When to contact your Lexus dealer
In the following cases, the vehicle will require inspection and/or repair. Contact your
Lexus dealer as soon as possible.
●Any of the SRS airbags have been inflated.
●The front of the vehicle is damaged or
deformed, or was involved in an accident
that was not severe enough to cause the
SRS airbags to inflate.
●A portion of a door is damaged or
deformed, or the vehicle was involved in an
accident that was not severe enough to
cause the SRS side and curtain shield air-
bags to inflate.
●The pad section of the steering wheel, dash-
board near the front passenger airbag or
lower portion of the instrument panel is
scratched, cracked, or otherwise damaged.
●Relaxation seat: The seat cushion surface is
scratched, cracked, or otherwise damaged.
●The surface of the seats with the side airbag
is scratched, cracked, or otherwise dam-
aged.

541-1. For safe use
LS600hL_U(OM50E41U)
●The portion of the front pillars, rear pillars or
roof side rail garnishes (padding) containing
the curtain shield airbags inside is scratched,
cracked, or otherwise damaged.

551-1. For safe use
1
For safety and security
LS600hL_U(OM50E41U)
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification
system. This system detects the cond itions of the front passenger seat
and activates or deactivates the devices for the front passenger.
Seat belt reminder light
SRS warning light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light1
2
3
4

561-1. For safe use
LS600hL_U(OM50E41U)
■Adult*1
■Child*3 or child restraint system*4
Condition and operation in the front passenger occupant classifi-
cation system
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“A I R B A G O N ”
SRS warning lightOff
Front passenger’s seat belt reminder lightFlashing*2
Devices
Front passenger airbag
Activated
Side airbag on the right side
passenger seats
Curtain shield airbag in the front passenger side
Front passenger knee airbag
Front passenger’s seat belt pretensioner
Active head restraints
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“A I R B A G OFF”
*5
SRS warning lightOff
Front passenger’s seat belt reminder lightFlashing*2
Devices
Front passenger airbagDeactivated
Side airbag on the right side
passenger seats
ActivatedCurtain shield airbag in the front passenger side
Front passenger knee airbagDeactivated
Front passenger’s seat belt pretensioner
Activated
Active head restraints

571-1. For safe use
1
For safety and security
LS600hL_U(OM50E41U)
■Unoccupied
■There is a malfunction in the system
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lightsNot illuminated
SRS warning light
Off
Front passenger’s seat belt reminder light
Devices
Front passenger airbagDeactivated
Side airbag on the right side
passenger seats
ActivatedCurtain shield airbag in the front passenger side
Front passenger knee airbagDeactivated
Front passenger’s seat belt pretensionerDeactivated or
activated
*6
Active head restraints Deactivated
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“AIR BAG OFF”
SRS warning lightOn
Front passenger’s seat belt reminder lightOff
Devices
Front passenger airbagDeactivated
Side airbag on the right side
passenger seats
ActivatedCurtain shield airbag in the front passenger side
Front passenger knee airbagDeactivated
Front passenger’s seat belt pretensioner
Activated
Active head restraints

581-1. For safe use
LS600hL_U(OM50E41U)
*1: The system judges a person of adult size as an adult. When a smaller adult sitsin 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 larger child who has outgrown a ch ild restraint system sits in the front
passenger seat, the system may recogn ize him/her as an adult depending on
his/her physique or posture.
*4: Never install a rear-facing child restraint system on the front passenger seat. A forward-facing child restraint system shou ld only be installed on the front pas-
senger seat when it is unavoidable. ( P. 6 2 )
*5: In case the indicator light is not illumi nated, consult this manual on how to
install the child restraint system properly. ( P. 66)
*6: Activated only in cases of side impact