2014 TOYOTA DYNA 100/150 sensor

SEATS, SEAT BELTS, STEERING WHEEL AND MIRRORS35
The driver ’s seat belt pretensioner is
designed to be activated in response to
a severe frontal impact.
When the airbag sensor detects the shock
of a severe frontal impact, the driver ’s
seat belt is quickly drawn back in by the
retractor so that the belt snugly restrains
the driver.
Collisionsoccurring at certain speeds and
angles may cause the seat belt preten-
sioner and SRS airbag not to operate all
together.This indicator comes on when the en-
gine switch is turned to the “ON” posi-
tion. It goes off after about 6 seconds.
This means the driver ’s seat belt pre-
tensioner is operating properly.
This warning light system monitors the
airbag sensor assembly, airbag sensor,
driver ’s seat belt pretensioner assembly,
inflator, interconnecting wiring and power
sources. (For details, see “Service remind-
er indicators and warning buzzer” on page
73 in Section 1−5.)
Dyna100/150_EE
—Driver’s seat belt
pretensioner

36SEATS, SEAT BELTS, STEERING WHEEL AND MIRRORS
The driver ’s seat belt pretensionersystem
mainly consists of the following compo-
nents and their locations are shown in the
illustration.
1. SRS warning light
2. Airbag sensor
3. Driver ’s seat belt pretensioner assem-
bly
4. Airbag sensor assembly
The driver ’s seat belt pretensioner is con-
trolled by the airbag sensor assembly. The
airbag sensor assembly consists of a saf-
ing sensor and airbag sensor.
When the driver ’s seat belt pretensioner is
activated, an operating noise may be
heard and a small amount of smoke−like
gas may be released. This gas is harm-
less and does not indicate that a fire is
occurring.
Once the driver ’s seat belt pretensioner
has been activated, the seat belt retractor
remains locked.
If the vehicle is involved in multiple colli-
sions, the pretensioner will activate for the
first collision, but will not activate for the
second or subsequent collisions.
CAUTION
Observe the following precautions to
reduce the risk of injury in the event
of sudden braking or an accident.
Failure to do so may cause death or
serious injury.
DIf the pretensioner has activated,
the SRS warning light will come on.
In that case, the seat belt cannot
be used again and must be re-
placed at any authorized Toyota
dealer or repairer, or another duly
qualified and equipped professional.
DDo not modify, remove, strike or
open the seat belt pretensioner as-
semblies, airbag sensor or sur-
rounding area or wiring. Consult
any authorized Toyota dealer or re-
pairer, or another duly qualified and
equipped professional about any re-
pair and modification.
Dyna100/150_EE

SEATS, SEAT BELTS, STEERING WHEEL AND MIRRORS39
This indicator comes on when the en-
gine switch is turned to the “ON” posi-
tion. It goes off after about 6 seconds.
This means the SRS airbag is operating
properly.
This warning light system monitors the
airbag sensor assembly, airbag sensor,
driver ’s seat belt pretensioner assembly,
inflator, interconnecting wiring and power
sources. (For details, see “Service
reminder indicators and warning buzzer”
on page 73 in Section 1−5.)The SRS airbag system is designed to
activate in response to a severe frontal
impact within the shaded area between
the arrows in the illustration.
The SRS airbag will deploy in the event
of an impact that exceeds the set thresh-
old level (the level of force corresponding
to an approximately 20−30 km/h [12−18
mph] frontal collision with a fixed wall that
does not move or deform).
If the severity of the impact is below the
above threshold level, the SRS airbag
may not deploy.
However, this threshold velocity will be
considerably higher if the vehicle strikes
an object, such as a parked vehicle or
sign pole, which can move or deform on
impact, or if it is involved in an underride
collision (e.g. a collision in which the nose
of the vehicle “underrides”, or goes under,
the bed of a truck, etc.).
It is possible that in some collisions at the
lower zone of airbag sensor detection and
activation the SRS airbag and seat belt
pretensioner will not operate all together.
For the safety of all occupants, always
wear your seat belts properly.
Dyna100/150_EE

SEATS, SEAT BELTS, STEERING WHEEL AND MIRRORS41
The SRS airbag system consists mainly of
the following components, and their loca-
tions are shown in the illustration.
1. SRS warning light
2. Airbag module for driver
(airbag and inflator)
3. Airbag sensor
4. Airbag sensor assembly
The airbag sensor assembly consists of a
safing sensor and airbag sensor.
In a severe frontal impact, the sensor de-
tects deceleration and the system triggers
the airbag inflator. At this time a chemical
reaction in the inflator quickly fills the air-
bag with non−toxic gas to help restrain
the forward motion of the driver.
When the airbag inflates, it produces a
fairly loud noise and releases some
smoke and residue along with non−toxic
gas. This does not indicate a fire. This
gas is normally harmless; however, for
those who have delicate skin, it may
cause a minor skin irritation. Be sure to
wash off any residue as soon as possible
to prevent any potential skin irritation.
Deployment of the airbag happens in a
fraction of a second, so the airbag must
inflate with considerable force. While the
system is designed to reduce serious inju-
ries, it may also cause minor burns or
abrasions and swelling.The steering wheel hub may be hot for
several minutes, but the airbag itself will
not be hot. The airbag is designed to
inflate only once.
CAUTION
The SRS airbag system is designed
only as a supplement to the primary
protection of the driver side seat belt
system. The driver can be killed or
seriously injured by the inflating air-
bag if he/she does not wear the avail-
able seat belt properly. During sudden
braking just before a collision, an un-
restrained driver can move forward
into direct contact with or close prox-
imity to the airbag which may then
deploy during the collision. To ensure
maximum protection in an accident,
the driver and all passengers in the
vehicle must wear their seat belts
properly. Wearing a seat belt properly
during an accident reduces the
chances of death or serious injury or
being thrown out of the vehicle. For
instructions and precautions concern-
ing the seat belt system, see “Seat
belts” on page 28 in this Section.
Dyna100/150_EE

GAUGES, METERS AND SERVICE REMINDER INDICATORS77
(g) “ABS” Warning Light
The light comes on when the engine
switch is turned to the “ON” position. If
the anti−lock brake system works properly,
the light turns off after a few seconds.
Thereafter, if the system malfunctions, the
light comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
anti−lock brake systemdoes not operate,
but the brake system stilloperates con-
ventionally.
When the “ABS” warning light is on (and
the brake system warning light is off), the
anti−lock brake systemdoes not operate
so that the wheels could lock up during
a sudden braking or braking on slippery
road surfaces.
If either of the following conditions oc-
curs, this indicates a malfunction some-
where in the components monitored by
the warning light system. Contact any
authorized Toyota dealer or repairer, or
another duly qualified and equipped
professional, as soon as possible to
service the vehicle.
DThe light does not come on when the
engine switch is turned to the “ON”
position, or the light remains on.
DThe light comes on while you are driv-
ing.
A warning light turning on briefly during
operation does not indicate a problem.
(h) SRS Warning Light
This light will come on when the engine
switch is turned to the “ON” position.
After about 6 seconds, the light will go
off. This means the systems of the air-
bag and driver ’s seat belt pretensioner
are operating properly.
This warning light system monitors the
airbag sensor assembly, airbag sensor,
driver ’s seat belt pretensioner assembly,
inflator, interconnecting wiring and power
sources.If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact any authorized Toyota
dealer or repairer, or another duly quali-
fied and equipped professional, as soon
as possible to service the vehicle.
DThe light does not come on when the
engine switch is turned to the “ON”
position or remains on for more than
6 seconds or flashes.
DThe light comes on or starts flashing
while driving.
(i) DPF (Diesel Particulate Filter) Sys-
tem Indicator Light
If the deposit builds up in the filter, the
indicator light on the instrument cluster
will come on when the engine switch is
turned on. The deposit built up in the filter
needs to be regenerated. For details, see
“DPF system” onpage 110 in Section 2.
If you do not perform regeneration and
continue to drive for a while with the indi-
cator light on, the light will begin to flash.
CAUTION
Continuing to drive with the light
flashing will cause the malfunction in-
dicator light to come on. In this
event, damage may be caused to the
vehicle or an accident may occur. If
the malfunction indicator light comes
on, have your vehicle checked by any
authorized Toyota dealer or repairer,
or another duly qualified and
equipped professional immediately.
Dyna100/150_EE

INFORMATION BEFORE DRIVING YOUR TOYOTA11 7
When the anti−lock brake system is ac-
tivated, the following conditions may
occur. They do not indicate a malfunc-
tion of the system:
DYou may hear the anti−lock brake sys-
tem operating and feel the brake pedal
pulsating and the vibrations of the ve-
hicle body and steering wheel. You
may also hear the motor sound from
the area around the front axle even
after the vehicle is stopped.
DAt the end of the anti−lock brake sys-
tem activation, the brake pedal may
movealittleforward.
CAUTION
Do not overestimate the anti−lock
brake system: Although the anti−lock
brake system assists in providing ve-
hicle control, it is still important to
drive with all due care and maintain
a moderate speed and safe distance
from the vehicle in front of you, be-
cause there are limits to the vehicle
stability and effectiveness of steering
wheel operation even with the anti−
lock brake system on.
If tire grip performance exceeds its
capability, or if hydroplaning occurs
during high speed driving in the rain,
the anti−lock brake system does not
provide vehicle control.
Anti−lock brake system is not de-
signed to shorten the stopping dis-
tance: Always drive at moderate
speed and maintain a safe distance
from the vehicle in front of you.
Compared with vehicles without an
anti−lock brake system, your vehicle
may require a longer stopping dis-
tance in the following cases:
DDriving on rough, gravel or snow−
covered roads.
DDriving with tire chains installed.
DDriving over the steps such as the
joints on the road.
DDriving on roads where the road
surface is pitted or has other differ-
ences in surface height.
Install all tires of specified size at
appropriate pressure: The anti−lock
brake system detects vehicle speeds
using the speed sensors for respec-
tive wheels’ turning speeds. The use
of tires other than specified may fail
to detect the accurate turning speed
resulting in a longer stopping dis-
tance.
Dyna100/150_EE