2008 TOYOTA YARIS sensor

55
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
■Seat belt extender
CAUTION
■Wearing a seat belt
Observe the following precautions to reduce the risk of injury in the event of
sudden braking or an accident.
Failing to do so may cause death or severe injury.
●Ensure that all passengers wear a seat belt.
● Always wear a seat belt properly.
● Each seat belt should be used by one person only. Do not use a seat belt
for more than one person at once, including children.
● Toyota recommends that children be seated in the rear seat and always
use a seat belt and/or an appropriate child restraint system.
● Do not recline the seat any more than necessary to achieve a proper seat-
ing position. The seat belt is most effective when the occupants are sitting
up straight and well back in the seats.
● Do not wear the shoulder belt under your arm.
● Always wear your seat belt low and snug across your hips.
■ Seat belt pretensioners
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 seat belt
pretensioner for the front passenger’s seat may not activate in the event of a
collision.
If your seat belts cannot be fastened
securely because they are not long
enough, a personalized seat belt
extender is available from your Toyota
dealer free of charge.

78 1-7. Safety information
Airbag system componentsFront passenger airbag
Curtain shield airbags (if
equipped)
Side airbags (if equipped)
SRS warning light
Curtain shield airbag sen-
sors (if equipped)
Driver airbag
Side and curtain shield air-
bag sensors (if equipped) Driver’s seat position sen-
sor
Driver’s seat belt buckle
switch
AIR BAG ON and AIR BAG
OFF indicator lights
Airbag sensor assembly
Front airbag sensors
Front passenger’s seat belt
buckle switch
Occupant detection system
(ECU and sensors)

79
1-7. Safety information
1
Before driving
Your vehicle is equipped with
ADVANCED AIRBAGS designed based
on US motor vehicle safety standards (FMVSS208). The airbag sys-
tem controls airbag deployment po wer for the driver and front pas-
senger. The driver airbag system consists of the driver seat’s position
sensor etc. The front passenger’s airbag system consists of the front
passenger occupant classification sensor etc.
The main SRS airbag system components are shown above. The
SRS airbag system is controlled by the airbag sensor assembly. The
airbag sensor assembly consists of a safing sensor and an airbag
sensor.
In certain types of severe frontal or side impacts, the SRS airbag sys-
tem triggers the airbag inflators. A chemical reaction in the inflators
quickly fills the airbags with non-toxic gas to help rest rain the motion
of the occupants.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensors, curtain shield airbag sen-
sors, driver’s seat position sensor, driver’s seat belt buckle switch, front pas-
senger occupant classification system, AIR BAG ON indicator light, AIR
BAG OFF indicator light, front passenger’s seat belt buckle switch, seat belt
pretensioner assemblies, inflators, interconnecting wiring and power
sources. ( P. 301)
■ 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.
● Vehicles with side and curtain shield airbags: Parts of the airbag module
(steering wheel hub, airbag cover and inflator) as well as the front seats,
and parts of the front and rear pillars and roof side rail, may be hot for
several minutes. The airbag itself may also be hot.
● Vehicles without side and curtain shield airbags: Parts of the airbag mod-
ule (steering wheel hub, airbag cover and inflator) as well as the front
seats may be hot for several minutes. The airbag itself may also be hot.

262
4-3. Do-it-yourself maintenance
Wheels
■When replacing wheels
The wheels of your Toyota are equipped with sensors that allow the tire
pressure warning system sensors to provide advanced warning in the
event of a loss in tire inflation pressure. Whenever wheels are replaced,
the tire pressure warning valve and transmitter must be switched over
from the old wheels. (P. 253)
If a wheel is bent, cracked or heavily corroded, it should be
replaced.
Otherwise, the tire may separate from the wheel or cause loss of
handling control.
■ Wheel selection
When replacing wheels, care should be taken to ensure that
they are equivalent to those removed in load capacity, diameter,
rim width, and offset.
Replacement wheels are available at your Toyota dealer.
Toyota does not recommend using:
●Wheels of different sizes or types
● Used wheels
● Bent wheels that have been straightened
■ Aluminum wheel precautions (if equipped)
●Use only Toyota wheel nuts and wrench designed for use with
your aluminum wheels.
● When rotating, repairing or changing your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
● Be careful not to damage the aluminum wheels when using
tire chains.
● Use only Toyota genuine balance weights or equivalent and a
plastic or rubber hammer when balancing your wheels.

298
5-1. Essential information
Event data recorder
In a crash or a near car crash eventThe SRS airbag sensor assembly contains the EDR. In a crash or a
near car crash event, this device may record some or all of the follow-
ing information:
● Engine speed
● Whether the brake pedal was applied or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● Driver’s seat position
● Front passenger’s occupant classification
● SRS airbag deployment data
● SRS airbag system diagnostic data
Your vehicle has computers that monitor and control certain aspects
of your vehicle. These computers assi st in driving and maintaining
optimal vehicle performance.
Besides storing data useful for tr oubleshooting, there is an event
data recorder (EDR) that records data in a crash or a near car
crash event.

306 5-2. Steps to take in an emergency
■Key reminder buzzer
The buzzer indicates that the key has not been removed (with the engine
switch in the ACC or LOCK position and the driver’s door opened).
■ Light reminder buzzer
The buzzer indicates that the headlight switch is left on (with the key
removed and the driver’s door opened).
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Front passenger detect ion sensor and passenger seat belt reminder
If luggage or other load is placed on the front passenger seat, depending on
its weight, the reminder light to flash and buzzer to sound.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
■The tire pressure warning light ma y turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such
as natural air leaks or tire inflation pressure changes caused by temper-
ature. In this case, adjusting the ti re inflation pressure will turn off the
warning light after a few minutes.
■When a tire is replaced with a compact spare tire
The compact spare tire is not equipped with the tire pressure warning
valve and transmitter. If a tire goes flat, the warning light will not turn off
even though the flat tire is replac ed with the compact spare tire. Replace
the compact spare tire with the repaired tire and adjust the proper tire
inflation pressure. The ti re pressure warning light will turn off after a few
minutes.

381
Alphabetical index
Uniform tire quality
grading ............................... 355
Tires Chains .................................. 151
Checking .............................. 252
If you have a flat tire ............. 310
Identification number ............ 350
Inflation pressure .......... 258, 345
Inflation pressure sensor ...... 253
Information ........................... 350
Replacing ..................... 252, 310
Rotating tires ........................ 252
Size ...................................... 345
Snow tires............................. 151
Spare tire .............................. 310
Tire pressure warningsystem........................ 252, 303
Warning light ........................ 303
Tools......................................... 310
Total load capacity .................. 150
Towing Dinghy towing ............... 164, 165
Emergency towing ................ 290
Trailer towing ................ 155, 156
Trip meter................................. 132
Turn signal lights Indicator................................ 126
Lever .................................... 126
Replacing light bulbs ............ 280
Switch ................................... 126
Wattage ................................ 346
Vanity mirrors .......................... 214
Vehicle identification number................................... 339
Warning buzzers Brake system........................ 300
Seat belt reminder ................ 303
Warning lights ABS ...................................... 301
Airbag system....................... 301 Anti-lock brake system ..........301
Brake system ........................300
Charging system ....
...............301
Driver’s seat belt ...................303
Electric power steering system ................................301
Electronic engine control system ................................301
Engine oil replacement..........303
EPS system...........................301
Front passenger occupant classification system ........... 301
Front passenger’s seat belt ...303
High engine coolant temperature ........................301
Low brake fluid ......................300
Low engine oil pressure ........301
Low fuel level ........................303
Low tire inflation pressure .....303
Low washer fluid ...................303
Malfunction ............................301
Open door .............................303
Seat belt ................................303
Seat belt pretensioner system ................................301
SRS .......................................301
SRS airbag system ...............301
Tire pressure .........................303
Tire pressure warning
system ................................303
Washer Checking ...............................250
Preparing and checking
before winter .......................151
Switch....................................142
Warning light .........................303
Washing and waxing ...............222
Weight Cargo capacity ......................147
Load limits .............................150
Weight ...................................338
Wheels ......................................262
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