2012 TOYOTA YARIS HATCHBACK ECU

386
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/C Air Conditioning
ABS Anti-Lock Brake System
ACC Accessory
AI-SHIFT Artificial Intelligence Shift Control ALR Automatic Locking Retractor
CRS Child Restraint System
ECU Electronic Control Unit
EDR Event Data Recorder ELR Emergency Locking Retractor
EPS Electric Power Steering
GAWR Gross Axle Weight Ratings
GVWR Gross Vehicle Weight Rating I/M Emission inspection and maintenance
LATCH Lower Anchors and Tethers for Children LED Light Emitting Diode
M + S Mud + Snow
MMT Methylcy clopentadienyl Manganese Tricarbonyl
MTBE Methyl Tertiary Butyl Ether OBD On Board Diagnostics
SRS Supplemental Restraint System TIN Tire Identification Number
TPMS Tire Pressure Warning System
TRAC Traction Control TWI Treadwear IndicatorsVIN Vehicle Identification Number
VSC Vehicle Stability Control

32 1-2. Opening, closing and locking the doors
■Operation signals
The emergency flashers flash to indicate that the doors have been locked/
unlocked. (Locked: once; Unlocked: twice)
■Panic mode
■Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
■ Alarm (if equipped)
Using the wireless remote control to lock the doors will set the alarm system.
(→ P. 74)
■ Conditions affecting operation
The wireless remote control function may not operate normally in the follow-
ing situations:
●When the wireless key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electri-
cal noise
● When carrying a portable radio, cell ular phone or other wireless commu-
nication device
● When the wireless key is in contact with, or is covered by a metallic
object
● When other wireless key (that emits radio waves) is being used nearby
● If window tint with a metallic content or metallic objects are attached to
the rear window When is pressed for longer than
about 1 second, an alarm will sound inter-
mittently and the vehicle lights will flash to
deter any person from trying to break into
or damage your vehicle.
To stop the alarm, press any button on
the wireless remote control.

41
1-2. Opening, closing and locking the doors
1
Before driving
CAUTION
●
Do not pull on the back door damper stay to close the back door, and do
not hang on the back door damper stay.
Doing so may cause hands to be caught or the back door damper stay to
break, causing an accident.
● If a bicycle carrier or similar heavy object is attached to the back door, it
may fall closed again after being opened, causing someone’s hands, head
or neck to be caught and injured. When installing an accessory part to the
back door, using a genuine Toyota part is recommended.
●The back door may fall if it is not
opened fully. It is more difficult to open
or close the back door on an incline
than on a level surface, so beware of
the back door unexpectedly opening or
closing by itself. Make sure that the
back door is fully open and secure
before using the luggage compartment.
● When closing the back door, take extra
care to prevent your fingers etc. from
being caught.
● When closing the back door, make sure
to press it lightly on its outer surface. If
the back door handle is used to fully
close the back door, it may result in
hands or arms being caught.

46 1-3. Adjustable components (seats, mirrors, steering wheel)
CAUTION
■Seat adjustment
●Be careful that the seat does not hit passengers or luggage.
● To reduce the risk of sliding under the lap belt during a collision, do not
recline the seat more than necessary.
If the seat is too reclined, the lap belt may slide past the hips and apply
restraint forces directly to the abdomen, or your neck may contact the
shoulder belt, increasing the risk of death or serious injury in the event of
an accident.
Adjustments should not be made while driving as the seat may unexpect-
edly move and cause the driver to lose control of the vehicle.
● After adjusting the seat, make sure that the seat is locked in position.
● Never allow anyone to touch seatback lock release levers while the vehi-
cle is moving.
● If anyone is in the vicinity, make sure they are clear of the seat back path
and let them know that the seat is about to move.
■ After returning the seatback to the upright position
Make sure the seatback is securely locked by pushing it forward and rear-
ward. Failure to do so may result in death or serious injury.
NOTICE
■ To prevent the seat lock mechanism malfunction
Do not use the seatback angle adjustment lever and seatback lock release
lever at the same time. If they are used together, the seat lock mechanism
may be damaged.

49
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
CAUTION
■When folding the rear seatbacks down
Observe the following precautions. Failure to do so may result in death or
serious injury.
●Do not fold the seatbacks down while driving.
● Stop the vehicle on level ground, set the parking brake and shift the shift
lever to P (vehicles with an automatic transmission) or N (vehicles with a
manual transmission).
● Do not allow anyone to sit on a folded seatback or in the luggage compart-
ment while driving.
● Do not allow children to enter the luggage compartment.
● For vehicles with a split rear seats, do not allow anyone sit on the rear cen-
ter seat if the rear right seat is folded down, as the seat belt buckle for the
rear center seat belt is then concealed under the folded seat and cannot
be used.
● Be careful not to catch your hand when folding the rear seatbacks.
● If it is necessary to detach the head restraints, remove it from the vehicle
or store it securely in the luggage compartment. This will prevent it from
injuring passengers in the event of sudden braking, sudden swerving or an
accident.
● Depending on the position of the front seat, it may interfere when trying to
fold down the rear seatbacks. If this happens, adjust the position of the
front seat.

50 1-3. Adjustable components (seats, mirrors, steering wheel)
CAUTION
■After returning the rear seatback to the upright position
Observe the following precautions. Failure to do so may result in death or
serious injury.
●Check that the seat belts are not twisted or caught in the seatback.
NOTICE
■Stowing the seat belts
The seat belts and the buckles must be stowed before you fold down the
rear seatbacks.
●Make sure that the seatback is securely
locked in position by lightly pushing it
back and forth.
If the seatback is not securely locked,
the red marking will be visible on the
seatback lock release knob. Make sure
that the red marking is not visible.

55
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
Rear center seat belt
The rear center seat belt is a 3- point type restraint with 2 buckles.
Both seat belt buckles must be co rrectly located and securely latched
for proper operation.
Make sure that the buckle is
securely latched ready for use of
the center seat belt.Matches the tab with hooked
end (tab “A”)
Matches the tab with concave
end (tab “B”)
■ Release method
The rear center seat belt can be completely released only when
necessary such as when folding down the rear seat.
To release the tab “B”, press
the release button.
To release the tab “A”, insert
the key or tab “B” into the hole
on the buckle.
Retract the belt slowly when
releasing and stowing the seat
belt.
A
B
A
BA
B

58 1-3. Adjustable components (seats, mirrors, steering wheel)
■Pregnant women
■ People suffering illness
Obtain medical advice and wear the seat belt in the proper way. ( →P. 54)
■ Child seat belt usage
The seat belts of your vehicle were principally designed for persons of adult
size.
●Use a child restraint system appropriate for the child, until the child
becomes large enough to properly w ear the vehicle’s seat belt. (→P. 98)
● When the child becomes large enough to properly wear the vehicle’s
seat belt, follow the instructions on P. 54 regarding seat belt usage.
■ Replacing the belt after the pretensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate
for the first collision, but will not activate for the second or subsequent colli-
sions.
■ Seat belt extender Obtain medical advice and wear the seat
belt in the proper way. (
→P. 54)
Women who are pregnant should position
the lap belt as low as possible over the
hips in the same manner as other occu-
pants. Extend the shoulder belt com-
pletely over the shoulder and position the
belt across the chest. Avoid belt contact
over the rounding of the abdominal area.
If the seat belt is not worn properly, not
only a pregnant woman, but also the fetus
could suffer death or serious injury as a
result of sudden braking or 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.