warning light TOYOTA AYGO 2015 (in English) Workshop Manual

3578-2. Steps to take in an emergency
8
When trouble arises
AYGO_EE_OM99J92E
■ Front passenger detection sensor, seat belt reminder and warning
buzzer (if equipped)
● 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. 361, 374
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. 310)
■ 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. 310)
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.

3588-2. Steps to take in an emergency
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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 specifications or makers, as the tire pres-
sure warning system may not operate properly.

3598-2. Steps to take in an emergency
8
When trouble arises
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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
present 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.
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. 320)
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. 157)

3608-2. Steps to take in an emergency
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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

3978-2. Steps to take in an emergency
8
When trouble arises
AYGO_EE_OM99J92E
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 fans or engine drive belt.

3988-2. Steps to take in an emergency
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If your vehicle overheats
●The high engine coolant temperature warning light (→P. 352, 353)
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 fans
If a large amount of coolant leaks, immediately contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
X1KR engineXHM01 engine
1
2

426What to do if... (Troubleshooting)
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●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. 152)
●Vehicles with a smart entry & start system
It is locked automatically to prevent theft of the vehicle. ( →P. 157)
●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. 156)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( →P. 355)
●The brake system warning light is on
Is the parking brake released? ( →P. 166)
Depending on the situation, other types of warning buzzer may also
sound. ( →P. 352)
●When a warning light turns on, refer to P. 352.
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

428Alphabetical index
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Alphabetical index
A/C..................................... 256, 262
Air conditioning filter.............. 318
Automatic air conditioning
system ................................ 262
Manual air conditioning
system ................................ 256
ABS (Anti-lock Brake
System) .................................. 191
Function ................................ 191
Warning light ......................... 354
Air conditioning filter .............. 318
Air conditioning
system ............................ 256, 262
Air conditioning filter.............. 318
Automatic air conditioning
system ................................ 262
Manual air conditioning
system ............................... 256
Airbag manual on-off
system ...................................... 45
Airbags ....................................... 34
Airbag manual on-off
system .................................. 45
Airbag operating conditions .... 41
Airbag precautions for
your child .............................. 37
Airbag warning light .............. 354
Correct driving posture............ 28
Curtain shield airbag
operating conditions ............. 41
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
Anchor brackets ........................ 62
Antennas (smart entry &
start system) .......................... 113
Anti-lock brake system
(ABS) ...................................... 191
Function ................................ 191
Warning light ......................... 354
Audio system*......................... 200
Audio input .................... 203, 226
AUX port ....................... 203, 226
Bluetooth® audio................... 242
iPod....................................... 211
Optimal use........................... 204
Portable music player ........... 203
Radio .................................... 206
Steering wheel audio
switch ................................. 202
USB memory ........................ 219
Automatic air conditioning
system .................................... 262
Air conditioning filter ............. 318
Automatic air conditioning
system ............................... 262
Automatic light control
system .................................... 169
AUX port*......................... 203, 226
A

429Alphabetical index
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Back door ................................. 107
Back-up lights
Replacing light bulbs ............. 336
Wattage................................. 418
Battery ...................................... 303
Battery checking ................... 303
If the vehicle battery is
discharged .......................... 394
Preparing and checking
before winter....................... 196
Warning light ......................... 352
Bluetooth®*
Audio system ........................ 242
Hands-free system
(for cellular phone).............. 244
Bottle holders........................... 273
Brake
Emergency brake signal ....... 191
Fluid ...................................... 416
Parking brake ........................ 166
Warning light ......................... 352
Brake assist.............................. 191
Break-in tips ............................ 142
Brightness control
Instrument cluster light
control................................... 88
Care ................................... 282, 285
Aluminum wheels .................. 283
Canvas top ............................ 282
Exterior.................................. 282
Interior ................................... 285
Seat belts .............................. 286
Canvas top ............................... 136
Chains....................................... 196
Child restraint system ............... 48
Baby seats, definition.............. 49
Baby seats, installation ........... 59
Child seats, definition.............. 49
Child seats,
installation ...................... 59, 60
Installing CRS with ISOFIX
rigid anchors ......................... 62
Installing CRS with
seat belts .............................. 59
Installing CRS with
top strap ............................... 63
Junior seats, definition ............ 49
Junior seats, installation ......... 61
Child safety ................................ 47
Airbag precautions .................. 37
Back door precautions .......... 110
Battery precautions ....... 303, 397
Canvas top precautions ........ 137
Child restraint system ............. 48
How your child should wear
the seat belt.......................... 31
Installing child restraints ......... 58
Power window precautions ... 133
Rear door child-protectors .... 105
Removed key battery
precautions......................... 321
Seat belt precautions .............. 32
Seat heater precautions........ 268
Child-protectors....................... 105
Cleaning ........................... 282, 285
Aluminum wheels.................. 283
Canvas top............................ 282
Exterior ................................. 282
Interior................................... 285
Seat belts .............................. 286
B
C
*: For vehicles with a multimedia system , refer to “Multimedia owner’s manual”.

430Alphabetical index
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Clock ......................................... 278
Condenser ................................ 303
Cooling system
Engine overheating ............... 398
Cup holders .............................. 272
Curtain shield airbags ............... 34
Customizable features ............ 421
Daytime running light
system .................................... 169
Defogger
Outside rear view
mirrors ........................ 258, 264
Rear window ................. 258, 264
Windshield .................... 258, 264
Dimension ................................ 406
Display
Multi-information display ......... 85
Trip information ....................... 85
Do-it-yourself maintenance .... 290
Doors
Back door .............................. 107
Door glasses ......................... 133
Door lock ....................... 102, 107
Open door warning buzzer.... 114
Open door warning light ........ 355
Outside rear view mirrors ...... 131
Rear door
child-protectors ................... 105
Side doors ............................. 102
Driving ...................................... 140
Break-in tips .......................... 142
Correct posture ....................... 28
Procedures............................ 140
Winter drive tips .................... 196
Electric Power Steering
(EPS)....................................... 191
Function ................................ 191
Warning light ......................... 354
Electronic key ............................ 92
Battery-saving function ......... 115
If the electronic key does not
operate properly ................. 391
Replacing the battery ............ 319
Emergency, in case of
If the electronic key does not
operate properly ................. 391
If the engine will not start ...... 388
If the shift lever cannot be
shifted ................................. 390
If the vehicle has discharged
battery ................................ 394
If the warning buzzer
sounds................................ 352
If the warning light
turns on .............................. 352
If you have a flat tire ..... 361, 374
If you lose your keys ............... 94
If you think something is
wrong.................................. 350
If your vehicle becomes
stuck ................................... 402
If your vehicle needs to be
towed .................................. 345
If your vehicle overheats ....... 398
Emergency brake signal ......... 191
Emergency flashers ................ 342
Emergency tire puncture
repair kit ................................. 374
D
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