Get For safety and security -> SRS airbags Guide for Toyota 4 Runner SUV Fifth Generation (2010-2024)

37

1-1. For safe use

SRS airbags

The SRS airbags inflate when the vehicle is subjected to certain

types of severe impacts that may cause significant injury to the

occupants. They work together with the seat belts to help reduce

the risk of death or serious injury.

1

◆ SRS front airbags

SRS driver airbag/front passenger airbag

1

Can help protect the head and chest of the driver and front pas-

senger from impact with interior components

SRS knee airbags

2

Can help provide driver and front passenger protection

◆ SRS side and curtain shield airbags

SRS side airbags

3

Can help protect the torso of the front seat occupants

SRS curtain shield airbags

4

● Can help protect primarily the head of occupants in the outer

seats

● Can help prevent the occupants from being thrown from the

vehicle in the event of vehicle rollover

4RUNNER (U)

38

SRS airbag system components

1-1. For safe use

Side airbags

Front passenger’s seat belt

buckle switch

1

2

10

11

“AIR BAG ON” and “AIR BAG

OFF” indicator lights

Front passenger occupant

classification system (ECU

and sensors)

Curtain shield airbags

Front passenger airbag

Knee airbags

3

4

5

6

Side impact sensors (rear)

SRS warning light

Safing sensor (rear)

Driver airbag

12

13

14

15

16

Side impact sensors (front

door)

Seat belt pretensioners and

force limiters

7

Driver’s seat belt buckle

switch

Front impact sensors

8

9

Airbag sensor assembly

4RUNNER (U)

39

1-1. For safe use

Your vehicle is equipped with ADVANCED AIRBAGS designed based

on the US motor vehicle safety standards (FMVSS208). The airbag

sensor assembly (ECU) controls airbag deployment based on infor-

mation obtained from the sensors etc. shown in the system compo-

nents diagram above. This information includes crash severity and

occupant information. As the airbags deploy, a chemical reaction in

the inflators quickly fills the airbags with non-toxic gas to help restrain

the motion of the occupants.

1

WARNING

■SRS airbag precautions

Observe the following precautions regarding the SRS airbags.

Failure to do so may cause death or serious injury.

●The driver and all passengers in the vehicle must wear their seat belts

properly.

The SRS airbags are supplemental devices to be used with the seat belts.

●The SRS driver airbag deploys with considerable force, and can cause

death or serious injury especially if the driver is very close to the airbag.

The National Highway Traffic Safety Administration (NHTSA) advises:

Since the risk zone for the driver’s airbag is the first 2 - 3 in. (50 - 75 mm)

of inflation, placing yourself 10 in. (250 mm) from your driver airbag pro-

vides you with a clear margin of safety. This distance is measured from

the center of the steering wheel to your breastbone. If you sit less than 10

in. (250 mm) away now, you can change your driving position in several

ways:

• Move your seat to the rear as far as you can while still reaching the ped-

als comfortably.

• Slightly recline the back of the seat.

Although vehicle designs vary, many drivers can achieve the 10 in. (250

mm) distance, even with the driver seat all the way forward, simply by

reclining the back of the seat somewhat. If reclining the back of your

seat makes it hard to see the road, raise yourself by using a firm, non-

slippery cushion, or raise the seat if your vehicle has that feature.

• If your steering wheel is adjustable, tilt it downward. This points the air-

bag toward your chest instead of your head and neck.

The seat should be adjusted as recommended by NHTSA above, while

still maintaining control of the foot pedals, steering wheel, and your view

of the instrument panel controls.

4RUNNER (U)

40

1-1. For safe use

WARNING

■SRS airbag precautions

●If the seat belt extender has been con-

nected to the front seat belt buckles but

the seat belt extender has not also been

fastened to the latch plate of the seat

belt, the SRS front airbags will judge

that the driver and front passenger are

wearing the seat belt even though the

seat belt has not been connected. In

this case, the SRS front airbags may

not activate correctly in a collision,

resulting in death or serious injury in the

event of a collision. Be sure to wear the

seat belt with the seat belt extender.

●The SRS front passenger airbag also deploys with considerable force, and

can cause death or serious injury especially if the front passenger is very

close to the airbag. The front passenger seat should be as far from the air-

bag as possible with the seatback adjusted, so the front passenger sits

upright.

●Improperly seated and/or restrained infants and children can be killed or

seriously injured by a deploying airbag. An infant or child who is too small

to use a seat belt should be properly secured using a child restraint sys-

tem. Toyota strongly recommends that all infants and children be placed in

the rear seats of the vehicle and properly restrained. The rear seats are

safer for infants and children than the front passenger seat. (P. 55)

●Do not sit on the edge of the seat or

lean against the dashboard.

4RUNNER (U)

41

1-1. For safe use

WARNING

■SRS airbag precautions

●Do not allow a child to stand in front of

the SRS front passenger airbag unit or

sit on the knees of a front passenger.

●Do not allow the front seat occupants to

1

hold items on their knees.

●Do not lean against the door, the roof

side rail or the front, side and rear pil-

lars.

●Do not allow anyone to kneel on the

passenger seats toward the door or put

their head or hands outside the vehicle.

●Do not attach anything to or lean any-

thing against areas such as the dash-

board, steering wheel pad and lower

portion of the instrument panel.

These items can become projectiles

when the SRS driver, front passenger

and knee airbags deploy.

●Do not attach anything to areas such as

a door, windshield glass, side door

glass, front or rear pillar, roof side rail

and assist grip.

4RUNNER (U)

42

1-1. For safe use

WARNING

■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 curtain shield airbags deploy.

●If a 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 air-

bag components.

Doing so can cause the SRS airbags to malfunction.

●Do not touch any of the component parts immediately after the SRS air-

bags 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 residue 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 and rear pillar garnishes, are damaged or cracked, have

them replaced by your Toyota 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 passenger's weight properly. As a result, the SRS front

airbags for the front passenger may not deploy in the event of a collision.

4RUNNER (U)

43

1-1. For safe use

WARNING

■Modification and disposal of SRS airbag system components

Do not dispose of your vehicle or perform any of the following modifications

without consulting your Toyota dealer. The SRS airbags may malfunction or

deploy (inflate) accidentally, causing death or serious injury.

●Installation, removal, disassembly and repair of the SRS airbags

1

●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 fender, front bumper, or side of the

occupant compartment

●Installation of a grill guard (bull bars, kangaroo 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

■If the SRS airbags deploy (inflate)

●Slight abrasions, burns, bruising etc., may be sustained from SRS airbags,

due to the extremely high speed deployment (inflation) by hot gases.

●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 and rear pillars, and roof side rails

may be hot for several minutes. The airbag itself may also be hot.

●The windshield may crack.

●Fuel supply to the engine will be stopped. (P. 476)

●For Safety Connect subscribers, if any of the following situations occur, the

system is designed to send an emergency call to the response center, noti-

fying them of the vehicle's location (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 agent automatically treats the call as an emergency and

helps to dispatch the necessary emergency services. (P. 72)

• An SRS airbag is deployed.

• A seat belt pretensioner is activated.

• The vehicle is involved in a severe rear-end collision.

• The vehicle is involved in a rollover accident.

4RUNNER (U)

44

1-1. For safe use

■SRS airbag deployment conditions (SRS front airbags)

●The SRS front airbags 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

situations:

• 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 possible that only the seat belt pre-

tensioners 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 air-

bags for the front passenger 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]).

●Both SRS curtain shield airbags will deploy in the event of vehicle rollover.

●All SRS side and curtain shield airbags will deploy in the event of a severe

frontal collision.

4RUNNER (U)

45

1-1. For safe use

■Conditions under which the SRS airbags may deploy (inflate), other than

a collision

The SRS front airbags, SRS side and curtain shield airbags may also deploy

if a serious impact occurs to the underside of your vehicle. Some examples

are shown in the illustration.

●Hitting a curb, edge of pavement or hard

surface

1

●Falling into or jumping over a deep hole

●Landing hard or falling

The SRS curtain shield airbags may also deploy under the situations shown

in the illustration.

●The angle of vehicle tip-up is marginal.

●The vehicle skids and hits a curb stone.

■Types of collisions that may not deploy the SRS airbags (SRS front air-

bags)

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.

●Collision from the side

●Collision from the rear

●Vehicle rollover

4RUNNER (U)

46

1-1. For safe use

■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.

●Collision from the side to the vehicle

body other than the passenger compart-

ment

●Collision from the side at an angle

The SRS side 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 rear

●Vehicle rollover

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 or low-speed frontal collision.

●Collision from the rear

●Pitching end over end

4RUNNER (U)

47

1-1. For safe use

■When to contact your Toyota dealer

In the following cases, the vehicle will require inspection and/or repair. Con-

tact your Toyota 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 acci-

dent that was not severe enough to

cause the SRS front airbags to inflate.

1

●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,

dashboard near the front passenger air-

bag or lower portion of the instrument

panel is scratched, cracked, or other-

wise damaged.

●The surface of the seats with the SRS

side airbag is scratched, cracked, or oth-

erwise damaged.

●The portion of the front pillars, rear pil-

lars or roof side rail garnishes (padding)

containing the SRS curtain shield air-

bags inside is scratched, cracked, or

otherwise damaged.

4RUNNER (U)

For safety and security -> SRS airbags for Your Toyota 4 Runner SUV Fifth Generation (2010-2024)

Related Topics

For safety and security

Popular Owner Manuals

Latest Owner Manuals