2017 TOYOTA AYGO warning light

3958-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99Q24E
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empt y, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
■ Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the
warning buzzer may sound.
■ When the tire pressure warning light comes on (vehicles with the tire
pressure warning system)
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: P. 399, 412
If the tire is not punctured:
Check the tire inflation pressure after the tire temperature has lowered suffi-
ciently. Adjust the inflation pressure to the appropriate level and carry out ini-
tialization. ( P. 3 4 5 )
■ The tire pressure warning light may come on due to natural causes
(vehicles with the tire pressure warning system)
The tire pressure warning light may come on due to natural causes such as
natural air leaks and tire inflation pressure changes caused by temperature.
In this case, adjusting the tire inflation pressure is at the specified level and
carry out initialization. ( P. 345)
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.

3968-2. Steps to take in an emergency
AYGO_OM_Europe_OM99Q24E
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional. The vehicle will become extremely unstable during braking, and the
ABS system may fail, which could cause an accident resulting in death or
serious injury.
■ 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.
■ If the tire pressure warning light comes on (vehicles with the 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 any 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 the tire
pressure warning system)
The tire pressure warning system may not activate immediately.
NOTICE
■ To ensure the tire pressure warning system operates properly (vehi-
cles with the tire pressure warning system)
Do not install tires with different specif ications or makers, as the tire pres-
sure warning system may not operate properly.

3978-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99Q24E
Warning light and warning buzzer list (vehicles with a smart
entry & start system)
Interior
buzzer
Exterior
buzzer
Warning
lightWarning light/Details/Actions
Once3 times(Flashes in yellow)
Smart entry & start system indicator light
(vehicles with a multi-mode manual trans-
mission)
The electronic key was carried outside the
vehicle and the driver’s door was opened
and closed while the engine switch was in a
made other than off.
 Turn the engine switch off or bring the
electronic key back into the vehicle.
Once3 times(Flashes in yellow)
Smart entry & start system indicator light
Indicates that a door other than the driver’s
door has been opened and closed with the
engine switch in any mode other than off
and the electronic key outside of the detec-
tion area.
 Confirm the location of the electronic
key.
Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator light
Indicates that the electronic key is not pres-
ent when attempting to start the engine.
 Confirm the location of the electronic
key.
9 times(Flashes in yellow)
Smart entry & start system indicator light
An attempt was made to drive when the
regular key was not inside the vehicle.
 Confirm that the electronic key is inside
the vehicle.

3988-2. Steps to take in an emergency
AYGO_OM_Europe_OM99Q24E
Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator light
Indicates that the electronic key battery is
low.
 Replace the battery. (P. 355)
Once(Flashes quickly in green for 15 seconds.)
Smart entry & start system indicator light
Indicates that the steering lock has not
been released.
 Release the steering lock. (P. 161)
Once(Flashes in yellow for 60 seconds.)
Smart entry & start system indicator light
• 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.
 Touch the electronic key to the engine
switch while depressing the brake
pedal.
Interior
buzzer
Exterior
buzzer
Warning
lightWarning light/Details/Actions

4358-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99Q24E
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the intended terminal.
● Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
● Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.
■ Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery:
● When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.
● Do not lean over the battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
● Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
● Do not allow children near the battery.
■ To prevent damage to the vehicle
Do not pull- or push-start the vehicle as the three-way catalytic converter
may overheat and become a fire hazard.
NOTICE
■ When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or engine drive belt.

4368-2. Steps to take in an emergency
AYGO_OM_Europe_OM99Q24E
If your vehicle overheats
●The high engine coolant temperature warning light (P. 389, 390)
comes on or flashes (1KR engine); comes on (HM01 engine); or a
loss of engine power is experienced. (For example, the vehicle
speed does not increase.)
● Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and
radiator core (radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immediately contact any authorized
Toyota dealer or repairer, or anot her duly qualified and equipped profes-
sional.
The following may indicate that your vehicle is overheating.
Correction procedures
1KR engineHM01 engine
1
2

464What to do if... (Troubleshooting)
AYGO_OM_Europe_OM99Q24E
●Vehicles without a smart entry & start system
It is locked to prevent theft of the vehicle if the key is removed from the
engine switch. ( P. 1 5 6 )
●Vehicles with a smart entry & start system
It is locked automatically to prevent theft of the vehicle. ( P. 161)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not operating) for a period of
time. ( P. 160)
●The seat belt reminder light is flashing
Are the driver and the passengers wearing the seat belts? ( P. 393)
●The brake system warning light is on
Is the parking brake released? ( P. 171)
Depending on the situation, other types of warning buzzer may also
sound. ( P. 389)
●When a warning light turns on, refer to P. 389.
The steering wheel cannot be turned after the engine is
stopped
The engine switch is turned off automatically
(vehicles with a smart entry & start system)
A warning buzzer sounds during driving
A warning light turns on

466Alphabetical index
AYGO_OM_Europe_OM99Q24E
Alphabetical index
A/C..................................... 290, 296
Air conditioning filter.............. 353
Automatic air conditioning
system ................................ 296
Manual air conditioning
system ................................ 290
ABS (Anti-lock Brake
System) .................................. 223
Function ................................ 223
Warning light ......................... 391
Air conditioning filter .............. 353
Air conditioning
system ............................ 290, 296
Air conditioning filter.............. 353
Automatic air conditioning
system ................................ 296
Manual air conditioning
system ............................... 290
Airbag manual on-off
system ...................................... 47
Airbags ....................................... 34
Airbag manual on-off
system .................................. 47
Airbag operating conditions .... 41
Airbag precautions for
your child .............................. 37
Airbag warning light .............. 391
Correct driving posture ........... 28
Curtain shield airbag
operating conditions ............. 42
Curtain shield airbag
precautions........................... 37
General airbag precautions .... 37
Locations of airbags................ 34
Modification and disposal
of airbags.............................. 40
Side airbag operating
conditions ............................. 41
Side airbag precautions .......... 37
Side and curtain shield
airbags operating
conditions ............................. 41
Side and curtain shield
airbags precautions .............. 37
SRS airbags............................ 34
A