brake TOYOTA YARIS 2017 Repair Manual

4498-2. Steps to take in an emergency
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When trouble arises
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WARNING
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
■ When driving to clean the DPF catalytic converter
When driving, pay sufficient attention to weather, road conditions, terrain
and traffic conditions, and be sure to observe traffic laws and/or regulations.
Failure to do so may cause an unexpected accident, resulting in death or
serious injury.
■ If the tire pressure warning light comes on (vehicles with a tire pres-
sure warning system)
Be sure to observe the following precautions. Failure to do so could cause a
loss of vehicle control and result in death or serious injury.
● Stop your vehicle in a safe place as soon as possible. Adjust the tire infla-
tion pressure immediately.
● If the tire pressure warning light comes on even after tire inflation pressure
adjustment, it is probable that you have a flat tire. Check the tires. If a tire
is flat, change it with the spare tire and have the flat tire repaired by the
nearest authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
● Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■ If a blowout or sudden air leakage should occur (vehicles with a tire
pressure warning system)
The tire pressure warning system may not activate immediately.

4528-2. Steps to take in an emergency
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Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator
Indicates that the electronic key is not
present when attempting to start the
engine.
 Confirm the location of the electronic
key.
9 times(Flashes in yellow)
Smart entry & start system indicator
An attempt was made to drive when the
regular key was not inside the vehicle.
 Confirm that the electronic key is inside
the vehicle.
Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator
Indicates that the electronic key battery is
low.
 Replace the battery. (P. 402)
Once(Flashes quickly in green for 15 seconds.)
Smart entry & start system indicator
Indicates that the steering lock has not
been released.
 Release the steering lock. (P. 188)
Once(Flashes in yellow for 30 seconds.)
Smart entry & start system indicator
• When the doors were unlocked with the
mechanical key and then the engine
switch was pressed, the electronic key
could not be detected in the vehicle.
• The electronic key could not be detected
in the vehicle even after the engine
switch was pressed two consecutive
times.
 Vehicles with a Multidrive:
Touch the electronic key to the engine
switch while depressing the brake
pedal.
 Vehicles with a manual transmission:
Touch the electronic key to the engine
switch while depressing the clutch
pedal.
Interior
buzzer
Exterior
buzzer
Warning
lightWarning light/Details/Actions

4538-2. Steps to take in an emergency
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When trouble arises
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If you have a flat tire (vehicles with a spare
tire)
● Stop the vehicle in a safe place on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P (Multidrive) or R (manual transmission).
● Stop the engine.
● Turn on the emergency flashers. (P. 428)
Your vehicle is equipped with a spare tire. The flat tire can be
replaced with the spare tire.
For details about tires: P. 3 8 1
WARNING
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair, which could result in an accident.
Before jacking up the vehicle

4608-2. Steps to take in an emergency
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WARNING
■Replacing a flat tire
● Observe the following precautions.
Failure to do so may result in serious injury:
• Do not try to remove the wheel ornament by hand. Take due care in
handling the ornament to avoid unexpected personal injury.
• Do not touch the disc wheels or the area around the brakes immediately
after the vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around
the brakes will be extremely hot. Touching these areas with hands, feet
or other body parts while changing a tire, etc. may result in burns.
● Failure to follow these precautions could cause the wheel nuts to loosen
and the tire to fall off, resulting in death or serious injury.
• Have the wheel nuts tightened with a torque wrench to 103 N·m
(10.5 kgf·m, 76 ft·lbf) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been specifically
designed for that wheel.
• If there are any cracks or deformations in the bolt screws, nut threads or
bolt holes of the wheel, have the vehicle inspected by any authorized
Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
• When installing the wheel nuts, be sure to install them with the tapered
ends facing inward. ( P. 398)

4668-2. Steps to take in an emergency
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WARNING
■When using the compact spare tire
● Remember that the compact spare tire provided is specifically designed
for use with your vehicle. Do not use your compact spare tire on another
vehicle.
● Do not use more than one compact spare tire simultaneously.
● Replace the compact spare tire with a standard tire as soon as possible.
● Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
■ When storing the compact spare tire
Be careful not to catch fingers or other body parts between the compact
spare tire and the body of the vehicle.
■ After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their
storage location to reduce the possibility of personal injury during a collision
or sudden braking.
■ When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
● ABS
● Brake assist
● VSC (if equipped)
● TRC (if equipped)
● PCS (Pre-Crash Safety system) (if equipped)
● LDA (Lane Departure Alert) (if equipped)
● Automatic High Beam (if equipped)
● Cruise control (if equipped)
● Navigation system (if equipped)
● EPS (Electric Power Steering)
■ Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km/h (50 mph) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to
observe this precaution may lead to an accident causing death or serious
injury.

4698-2. Steps to take in an emergency
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When trouble arises
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●Stop the vehicle in a safe place on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P (Multidrive) or N (manual transmission).
● Stop the engine.
● Turn on the emergency flashers. (P. 428)
● Check the degree of the tire damage.
A tire should only be repaired
with the emergency tire punc-
ture repair kit if the damage is
caused by a nail or screw pass-
ing through the tire tread.
• Do not remove the nail or
screw from the tire. Remov-
ing the object may widen the
opening and disenable emer-
gency repair with the kit.
• To avoid sealant leakage, move the vehicle until the area of the
puncture, if known, is positioned at the top of the tire.
■ A flat tire that cannot be repaired with the emergency tire puncture
repair kit
● In the following cases, the tire cannot be repaired with the emergency tire
puncture repair kit. Contact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
● When the tire is damaged due to driving without sufficient air pressure
● When there are any cracks or damage at any location on the tire, such as on
the side wall, except the tread
● When the tire is visibly separated from the wheel
● When the cut or damage to the tread is 4 mm (0.16 in.) long or more
● When the wheel is damaged
● When two or more tires have been punctured
● When more than 2 sharp objects such as nails or screws have passed
through the tread on a single tire
● When the sealant has expired
Before repairing the tire

4818-2. Steps to take in an emergency
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When trouble arises
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WARNING
■Precautions for use of the sealant
● Ingesting the sealant is hazardous to your health. If you ingest sealant,
consume as much water as possible, and then immediately consult a doc-
tor.
● If sealant gets in eyes or adheres to skin, immediately wash it off with
water. If discomfort persists, consult a doctor.
■ When fixing the flat tire
● Stop your vehicle in a safe and flat area.
● Do not touch the wheels or the area around the brakes immediately after
the vehicle has been driven.
After the vehicle has been driven, the wheels and the area around the
brakes may be extremely hot. Touching these areas with hands, feet or
other body parts may result in burns.
● To avoid risk of burst or severe leakage, do not drop or damage the bottle.
Visually inspect the bottle before use. Do not use a bottle with shock,
crack, scratch, leakage or any other damage. In such case, immediately
replace.
● Connect the valve and hose securely with the tire installed on the vehicle.
If the hose is not properly connected to the valve, air leakage may occur
as sealant may be sprayed out.
● If the hose comes off the valve while inflating the tire, there is a risk that
the hose will move abruptly due to air pressure.
● After inflation of the tire has completed, the sealant may splatter when the
hose is disconnected or some air is let out of the tire.
● Follow the operation procedure to repair the tire. If the procedures not fol-
lowed, the sealant may spray out.
● Keep back from the tire while it is being repaired, as there is a chance of it
bursting while the repair operation is being performed. If you notice any
cracks or deformation of the tire, turn off the compressor switch and stop
the repair operation immediately.
● The repair kit may overheat if operated for a long period of time. Do not
operate the repair kit continuously for more than 40 minutes.
● Parts of the repair kit become hot during operation. Be careful when han-
dling the repair kit during and after operation. Do not touch the metal part
around the connecting area between the bottle and compressor. It will be
extremely hot.
● Do not attach the vehicle speed warning sticker to an area other than the
one indicated. If the sticker is attached to an area where an SRS airbag is
located, such as the pad of the steering wheel, it may prevent the SRS
airbag from operating properly.

4858-2. Steps to take in an emergency
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When trouble arises
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One of the following may be the cause of the problem:
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. (P. 488)
● There may be a malfunction in the steering lock system (vehicles
with a smart entry & start system).
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional, if the problem cannot be repaired, or if repair
procedures are unknown.
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the engine switch is functioning
normally:
Set the parking brake.
Shift the shift lever to P (Multidrive) or N (manual transmission).
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while
depressing the brake pedal (Multidrive) or brake pedal and clutch
pedal (manual transmission) firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle inspected by any authorized
Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
Emergency start function (vehicles with a smart entry & start
system)
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4868-2. Steps to take in an emergency
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If the electronic key does not operate properly
(vehicles with a smart entr y & start system)
Use the mechanical key ( P. 104)
in order to perform the following
operations:
Unlocks all the doors
Locks all the doors
Vehicles with a Multidrive:
Ensure that the shift lever is in P and depress the brake pedal.
Vehicles with a manual transmission:
Ensure that the shift lever is in N and depress the clutch pedal.
If communication between the electronic key and vehicle is
interrupted ( P. 130) or the electronic key cannot be used
because the battery is depleted, the smart entry & start system
and wireless remote control cannot be used. In such cases, the
doors can be opened and the engine can be started by following
the procedure below.
Locking and unlocking the doors
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Starting the engine
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4878-2. Steps to take in an emergency
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When trouble arises
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Touch the Toyota emblem side
of the electronic key to the
engine switch.
The engine switch will turn to IGNI-
TION ON mode.
When the smart entry & start sys-
tem is deactivated in customization
setting, the engine switch will turn
to ACCESSORY mode.
Firmly depress the brake pedal (Multidrive) or clutch pedal (manual
transmission) and check that (green) turns on.
Press the engine switch.
In the event that the engine still cannot be started, contact any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped
professional.
■ Stopping the engine
Shift the shift lever to P (Multidrive) or N (manual transmission) and press the
engine switch as you normally do when stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 402)
■ Changing engine switch modes
Release the brake pedal (Multidrive) or clutch pedal (manual transmission)
and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 186)
■ When the electronic key does not work properly
Make sure that the smart entry & start system has not been deactivated in the
customization setting. If it is off, turn the function on.
(Customizable features: P. 524)
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