Lexus GX460 2014 Service Manual

391-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
1
For safety and security
CAUTION
■SRS airbag precautions
●Do not lean against the door, the roof side rail
or the front, side and rear pillars.
●Do not allow anyone to kneel on the passen-
ger seats toward the door or put their head or
hands outside the vehicle.
●Do not attach anything to or lean anything
against areas such as the dashboard, steering
wheel pad and lower portion of the instru-
ment panel.
These items can become projectiles when the
SRS driver, front passenger and knee airbags
deploy.
GX460_OM_OM60K80U_(U).book Page 39 Wednesday, July 3, 2013 11:40 AM

401-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
CAUTION
■SRS airbag precautions
●Do not hang coat hangers or other hard objects on the coat hooks. All of these items
could become projectiles and may cause death or serious injury, should the SRS cur-
tain shield airbags deploy.
●If the vinyl cover is put on the area where the SRS knee airbag will deploy, be sure to
remove it.
●Do not use seat accessories which cover the parts where the SRS side airbags inflate
as they may interfere with inflation of the airbags. Such accessories may prevent the
side airbags from activating correctly, disable the system or cause the side airbags to
inflate accidentally, resulting in death or serious injury.
●Do not strike or apply significant levels of force to the area of the SRS airbag compo-
nents.
Doing so can cause the SRS airbags to malfunction.
●Do not touch any of the component parts immediately after the SRS airbags have
deployed (inflated) as they may be hot.
●If breathing becomes difficult after the SRS airbags have deployed, open a door or
window to allow fresh air in, or leave the vehicle if it is safe to do so. Wash off any resi-
due as soon as possible to prevent skin irritation.
●If the areas where the SRS airbags are stored, such as the steering wheel pad and
front, side and rear pillar garnishes, ar e damaged or cracked, have them replaced by
your Lexus dealer.
●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 pas-
senger’s weight properly. As a result, the SRS front airbags for the front passenger
may not deploy in the event of a collision.
●Do not attach anything to areas such as a
door, windshield glass, side door glass, front,
side or rear pillars, roof side rail and assist
grip.
GX460_OM_OM60K80U_(U).book Page 40 Wednesday, July 3, 2013 11:40 AM

411-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
1
For safety and security
■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
front seats, parts of the front, side and rear pillars and roof side rails, may be hot for sev-
eral minutes. The airbag itself may also be hot.
●The windshield may crack.
●For Safety Connect subscribers, 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 locat ion (without needing to push the “SOS” but-
ton) and an agent will attempt to speak with the occupants to ascertain the level of
emergency and assistance required. If the occupants are unable to communicate, the
argent automatically treats the call as an emergency and helps to dispatch the neces-
sary emergency services. ( →P. 4 2 8 )
CAUTION
■Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications without
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, seat upholstery, fron t, side and rear pillars or roof side rails
●Repairs or modifications of the front fender, front bumper, or side of the occupant
compartment
●Installation of a grille guard (bull bars, ka ngaroo bar, etc.), snow plows, winches or
roof luggage carrier
●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
GX460_OM_OM60K80U_(U).book Page 41 Wednesday, July 3, 2013 11:40 AM

421-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
■SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds the set thresh-
old 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 situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole, which can moveor 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 possib le that only the seat belt pretensioners will
activate.
●The SRS front airbags for the front passenger will not activate if there is no passenger
sitting in the front passenger seat. However, the SRS front airbags for the front passen-
ger may deploy if luggage is put in the seat, even if the seat is unoccupied.
■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 will deploy in the event of vehicle rollover.
■Conditions under which the SRS airbags may deploy (inflate), other than a collision
The SRS front airbags may also deploy if a serious impact occurs to the underside of your
vehicle. Some examples are shown in the illustration.
The SRS curtain shield airbags may also deploy under the situations shown in the illustra-
tion.
●Hitting a curb, edge of pavement or hard sur-
face
●Falling into or jumping over a deep hole
●Landing hard or falling
●The angle of vehicle tip-up is marginal
●The vehicle skids and hits a curb stone
GX460_OM_OM60K80U_(U).book Page 42 Wednesday, July 3, 2013 11:40 AM

431-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
1
For safety and security
■Types of collisions that may not deploy the SRS airbags (SRS front airbags)
The SRS front airbags 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 forward deceleration of the vehicle, deployment of
the SRS front airbags may occur.
■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 pitches end over end, or if it is involved in a low-speed side collision.
●Collision from the side
●Collision from the rear
●Vehicle rollover
●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
●Pitching end over end
GX460_OM_OM60K80U_(U).book Page 43 Wednesday, July 3, 2013 11:40 AM

441-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
■When to contact your Lexus dealer
In the following cases, 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 front
airbags to inflate.
●A portion of a door or its surrounding area 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 airbags 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.
●The surface of the seats with the side airbag is
scratched, cracked or otherwise damaged.
●The portion of the front pillars, center pillars,
rear pillars or roof side rail garnishes (pad-
ding) containing the curtain shield airbags
inside is scratched, cracked or otherwise dam-
aged.
GX460_OM_OM60K80U_(U).book Page 44 Wednesday, July 3, 2013 11:40 AM

451-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
1
For safety and security
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification sys-
tem. This system detects the conditions of the front passenger seat and acti-
vates or deactivates the devices for the front passenger.
SRS warning light
Seat belt reminder light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light1
2
3
4
GX460_OM_OM60K80U_(U).book Page 45 Wednesday, July 3, 2013 11:40 AM

461-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
■Adult*1
■Child*4
Condition and operation in the front passenger occupant classification
system
Indicator/
warning light
“A I R B A G O N ” a n d “A I R B A G O F F ” indicator lights“A I R B A G O N ”
SRS warning lightOff
Seat belt reminder lightOff*2 or flashing*3
Devices
Front passenger airbag
Activated
Side airbag
on the front passenger seat
Curtain shield airbag
in the front passenger side
Front passenger knee airbag
Front passenger’s seat belt pretensioner
Indicator/
warning light
“A I R B A G O N ” a n d “A I R B A G O F F ”
indicator lights“A I R B A G O F F ” o r “A I R B A G O N ”
*4
SRS warning lightOff
Seat belt reminder lightOff*2 or
flashing*3
Devices
Front passenger airbagDeactivated or activated*4
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger knee airbagDeactivated or
activated
*4
Front passenger’s seat belt pretensionerActivated
GX460_OM_OM60K80U_(U).book Page 46 Wednesday, July 3, 2013 11:40 AM

471-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
1
For safety and security
■Child restraint system with infant*5
■Unoccupied
Indicator/
warning light
“A I R B A G O N ” a n d “A I R B A G O F F ”
indicator lights“A I R B A G O F F ”*6
SRS warning lightOff
Seat belt reminder lightOff*2 or
flashing*3
Devices
Front passenger airbagDeactivated
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger knee airbagDeactivated
Front passenger’s seat belt pretensionerActivated
Indicator/
warning light
“A I R B A G O N ” a n d “A I R B A G O F F ” indicator lightsNot illuminated
SRS warning light
Off
Seat belt reminder light
Devices
Front passenger airbagDeactivated
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger knee airbagDeactivated
Front passenger’s seat belt pretensioner
Activated*7
or
d
eactivated*8
GX460_OM_OM60K80U_(U).book Page 47 Wednesday, July 3, 2013 11:40 AM

481-1. For safe use
GX 460 _O M_ OM6 0K 80 U_ (U)
■There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller adult sits inthe 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 is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt
*4: When a larger child who has outgrown a child restraint system sits in the front pas-senger seat, the system may recognize him/her as an adult depending on his/her
physique or posture.
*5: Never install a rear-facing child restraint system on the front passenger seat. A for-
ward-facing child restraint system should only be installed on the front passenger
seat when it is unavoidable. ( →P. 5 2 )
*6: In case the indicator light is not illuminated, consult this manual on how to install the
child restraint system properly. ( →P. 5 6 )
*7: In the event of a side collision.
*8: In the event of a frontal collision or vehicle rollover.
Indicator/
warning light
“A I R B A G O N ” a n d “A I R B A G O F F ” indicator lights“A I R B A G O F F ”
SRS warning light
On
Seat belt reminder light
Devices
Front passenger airbagDeactivated
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger knee airbagDeactivated
Front passenger’s seat belt pretensionerActivated
GX460_OM_OM60K80U_(U).book Page 48 Wednesday, July 3, 2013 11:40 AM