2011 TOYOTA AYGO engine overheat

216STARTING AND DRIVING
Trailer towing
MS31001
Toyota does not recommend towing a
trailer with your Toyota. It is not de-
signed for trailer towing.Improving fuel economy is easy—just take
it easy. It will help make your vehicle last
longer, too. Here are some specific tips
on how to save money on both fuel and
repairs:
DKeep your tires inflated at the cor-
rect pressure.Underinflation causes
tire wear and wastes fuel. See page
269 in Section 7−2 for instructions.
DDo not carry unnecessary weight in
your vehicle.Excess weight puts a
heavier load on the engine, causing
greater fuel consumption.
DAvoid lengthy warm−up idling.Once
the engine is running smoothly, begin
driving—but gently. Remember, howev-
er, that on cold winter days this may
take a little longer.
DAccelerate slowly and smoothly.
Avoid jackrabbit starts. Get into high
gear as quickly as possible.
DAvoid long engine idling.If you have
a long wait and you are not in traffic,
it is better to turn off the engine and
start again later.
DAvoid engine lugging or over−rev-
ving.Use a gear position suitable for
the road on which you are travelling.
DAvoid continuous speeding up and
slowing down.Stop−and−go driving
wastes fuel.
DAvoid unnecessary stopping and
braking.Maintain a steady pace. Try
to time the traffic signals so you only
need to stop as little as possible or
take advantage of through streets to
avoid traffic lights. Keep a proper dis-
tance from other vehicles to avoid sud-
den braking. This will also reduce wear
on your brakes.
DAvoid heavy traffic or traffic jams
whenever possible.
DDo not rest your foot on the clutch
or brake pedal.This causes premature
wear, overheating and poor fuel econo-
my.
AYGO WE 99E37E11 02.18
How to save fuel and make
your vehicle last longer

IN CASE OF AN EMERGENCY219
Section 4
IN CASE OF AN EMERGENCY
DIf your vehicle will not start 220..............................
DIf your engine stalls while driving 224........................
DIf you cannot increase engine speed 225.....................
DIf your vehicle overheats 225...............................
DIf you have a flat tire 226...................................
DIf your vehicle becomes stuck 236...........................
DIf your vehicle needs to be towed 236........................
DIf you cannot shift multi−mode manual transmission
shift lever 242.............................................
DIf you lose your keys 243...................................
DIf your vehicle has to be stopped in an emergency 244........
AYGO WE 99E37E11 02.18

220IN CASE OF AN EMERGENCY
Before making these checks, make sure
you have followed the correct starting
procedure given in “How to start the
engine” on page 210 in Section 3 and that
you have sufficient fuel. Since your
vehicle is equipped with an engine
immobilizer system, also check whether
the other keys will start the engine. If
they work, your key may be broken. Have
the key checked at any authorized Toyota
dealer or repairer, or another duly
qualified and equipped professional. If
none of your keys work, there may be a
malfunction in the immobilizer system. Call
any authorized Toyota dealer or repairer,
or another duly qualified and equipped
professional. (See “Keys” on page 10 in
Section 1−2).
If the engine is not turning over or is
turning over too slowly—
1. Check that the battery terminals are
tight and clean.
2. If the battery terminals are O.K., switch
on the interior light.
3. If the light is out, dim or goes out
when the starter is cranked, the battery
is discharged. You may try jump start-
ing. See “(c) Jump starting” on page
221 for further instructions.
If the light is OK, but the engine still will
not start, it needs adjustment or repair.
Call any authorized Toyota dealer or re-
pairer, or another duly qualified and
equipped professional.
NOTICE
For manual transmission:
Do not pull−or push−start the ve-
hicle. It may damage the vehicle or
cause a collision when the engine
starts. Also the three−way catalytic
converter may overheat and become a
fire hazard.
If the engine turns over at its normal
speed but will not start—
1. Turn the engine switch to “ACC” or
“LOCK” and try starting the engine
again.
2. If the engine will not start, the engine
may be flooded because of repeated
cranking. See “(b) Starting a flooded
engine” on page 221 for further instruc-
tions.
3. If the engine still will not start, it needs
adjustment or repair. Call any autho-
rized Toyota dealer or repairer, or
another duly qualified and equipped
professional.
AYGO WE 99E37E11 02.18
If your vehicle will not start
(a) Simple checks

IN CASE OF AN EMERGENCY221
If the engine will not start, your engine
may be flooded because of repeated
cranking.
If this happens, turn the engine switch to
“START” with the accelerator pedal fully
depressed. Keep the key and accelerator
pedal in these positions for 15 seconds
and release them. Then try starting the
engine with your foot off the accelerator
pedal.
If the engine does not start after 15 se-
conds of cranking, release the key, wait
a few minutes and try again.
If the engine still will not start, it needs
adjustment or repair. Call any authorized
Toyota dealer or repairer, or another duly
qualified and equipped professional, for
assistance.
NOTICE
Do not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
(c) Jump starting
To avoid serious personal injury and
damage to your vehicle which might re-
sult from a battery explosion, acid
burns, electrical burns, or damaged
electronic components, these instruc-
tions must be followed precisely.
Vehicles with multi−mode manual transmis-
sion—The engine cannot be started by
push−starting.
If you are unsure about how to follow this
procedure, we strongly recommend that
you seek the help of a competent me-
chanic or towing service.
CAUTION
DBatteries contain sulfuric acid
which is poisonous and corrosive.
Wear protective safety glasses when
jump starting, and avoid spilling
acid on your skin, clothing, or ve-
hicle.
DIf you should accidentally get acid
on yourself or in your eyes, remove
any contaminated clothing and flush
the affected area with water imme-
diately. Then get immediate medical
attention. If possible, continue to
apply water with a sponge or cloth
while en route to the medical office.
DThe gas normally produced by a
battery will explode if a flame or
spark is brought near. Use only
standardized jumper cables and do
not smoke or light a match while
jump starting.
NOTICE
The battery used for boosting must
be12 V. Do not jump start unless you
are sure that the booster battery is
correct.
AYGO WE 99E37E11 02.18
(b) Starting a flooded engine

IN CASE OF AN EMERGENCY225
If engine speed does not increase when
the accelerator pedal is depressed, there
may be a problem somewhere in the elec-
tronic throttle control system.
At this time, vibration may occur. Howev-
er, if you depress the accelerator pedal
more firmly and slowly, you can drive your
vehicle at low speeds. Have your Toyota
checked by any authorized Toyota dealer
or repairer, or another duly qualified and
equipped professional, as soon as pos-
sible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, thesystem may not be
recovered until the engine is stopped and
the engine switch is turned to “ACC” or
“LOCK” position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
If your high engine coolant temperature
warning light flashes to indicates over-
heating, if you experience a loss of
power, or if you hear a loud knocking
or pinging noise, the engine has prob-
ably overheated. You should follow this
procedure...
1. Pull safely off the road, stop the ve-
hicle and turn on your emergency
flashers. Put the transmission in “N”
(multi−mode manual transmission), or
neutral (manual transmission) and ap-
ply the parking brake. Turn off the air
conditioning if it is being used.
2. If coolant or steam is boiling out of the
radiator or reservoir, stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine
running and make sure the electric
cooling fan is operating. If it is not,
turn the engine switch off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from the
radiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the engine is running, keep
hands and clothing away from the
moving fan and engine drive belts.
AYGO WE 99E37E11 02.18
If you cannot increase engine
speed (vehicles with multi−mode
manual transmission or vehicle
stability control system)
If your vehicle overheats

270DO−IT−YOURSELF MAINTENANCE: Engine and Chassis
CAUTION
Keep your tires properly inflated.
Otherwise, the following conditions
may occur and cause an accident re-
sulting in death or serious injuries.
Low tire pressure (underinflation)—
DExcessive wear
DUneven wear
DPoor handling
DPossibility of blowouts from an
overheated tire
DPoor sealing of the tire beads
DWheel deformation and/or tire sepa-
ration
DA greater possibility of tire damage
from road hazards
High tire pressure (overinflation)—
DPoor handling
DExcessive wear
DUneven wear
DA greater possibility of tire damage
from road hazards
Checking and replacing tires
72A008
Treadwear indicator
CHECKING YOUR TIRES
Check the tire’s tread for treadwear in-
dicators. If the indicators show, replace
the tires. The location of treadwear in-
dicators is shown by the “TWI” or “∆”
marks, etc., molded on the sidewall of
each tire.
The tires on your Toyota have built−in
treadwear indicators to help you know
when the tires need replacement. When
the tread depth wears to1.6 mm (0.06
in.) or less, the indicators will appear. If
you can see the indicators in two or more
adjacent grooves, the tire should be re-
placed. The lower the tread, the higher
the risk of skidding.
AYGO WE 99E37E1102.18

304INDEX
A
Adding washer fluid 282..................
Adjustment
Front seats 42.........................
Seat belts 48..........................
Air conditioning filter 184.................
Air conditioningsystem 175..............
Airbag manual on−off system 78..........
Airbags 55,62,68........................
Aluminum wheel precautions 275.........
Anti−glare inside rear view mirror 114.....
Anti−lock brake system warning
light 127..............................
Anti−theft steering column lock 138.......
Appearance care
Cleaning the interior 250...............
Protecting your Toyota from
corrosion 246.......................
Washing and waxing 247...............
Audio system 161.......................
Auxiliary catch, Engine hood 36..........
B
Back door 33............................
Battery
Checking battery condition 278.........
Gas caution 278.......................
Handling safety 278....................
Recharging precautions 280............
Winter driving tips 215.................
Before starting the engine 210............
Brake system 200.......................
Brake system warning light 127...........
Brakes
Parking 160...........................
Break−in tips 194........................
C
Carbon monoxide caution 198............
Charging system warning light 127........
Checking and replacing fuses 280........
Checking the engine oil level 264.........
Checking the radiator and
condenser 268........................
Child restraint
Child restraint system 81...............
Installation 90.........................Installation with ISOFIX rigid
anchor 109..........................
ISOFIX child restraint system 109.......
Precautions 80........................
Types of child restraint system 82.......
Using a top strap 106..................
Cleaning the interior 250.................
Clock 188...............................
Cold weather
Operation 215.........................
Compact disc player 162.................
Condenser
Checking the condenser 268...........
Controls, Instrument panel 2.............
Cooling system
Coolant level 267......................
Engine overheating 225................
Radiator 268..........................
Radiator and reservoir 267.............
Radiator cap 225......................
Winter driving tips 215.................
Corrosion prevention 246................
Cup holders 189.........................
D
Defogger
Rear window 121......................
Dimmer switch, Headlight 116............
Directional signals 116...................
Do−it−yourself maintenance
Service precautions 260...............
Does your vehicle need repairing? 255....
Doors
Side doors 28.........................
Driver ’s seat belt reminder buzzer 127....
Driver ’s seat belt reminder light 127.......
Driving
Driving tips 213,215....................
Manual transmission 156...............
Driving in the rain 214....................
Driving tips
Driving in the rain 214..................
Driving tips in various conditions 213....
Driving with a manual
transmission 156....................
Economical driving 216................
Good driving practice 156..............
Pre−trip safety check 211..............
Winter driving tips 215.................
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INDEX305
During
Break−in 194..........................
E
Economical driving
Saving money on both fuel and
repairs 216..........................
Electric power steering system 204.......
Electric power steering system warning
light 127..............................
Electrical system
Battery 278,280.......................
Fuse locations 259....................
Fuses 280............................
Emergency flasher switch 118............
Emergency, In case of
Blown fuse 280........................
Emergency flasher switch 118..........
Flat tire 226...........................
If you lose your keys 243...............
If your engine stalls while driving 224....
If your vehicle has to be stopped in
an emergency 244...................
If your vehicle needs to be
towed 236...........................
If your vehicle will not start 220.........
Jump starting 221.....................
Overheating 225.......................
Towing 236............................
Engine
Before starting the engine 210..........
Checking the coolant level 267..........
Emission control device 197............
Engine compartment 258...............
Exhaust gas caution 198...............
Hood release 36.......................
Identification number 206..............
Oil consumption 199...................
Oil level 264...........................
Overheating 225.......................
Starting procedure 209.................
Three−way catalytic converter 197......
Engine coolant
Temperature warning lights 125.........
Winter driving tips 215.................
Engine coolant temperature warning
lights 125.............................
Engine immobilizer system 13............
Engine oil
Winter driving tips 215.................Exhaust gas caution 198.................
F
Facts about engine oil
consumption 199......................
Flasher, Headlight 116...................
Flat tire
After changing wheels 235.............
Changing tire 231......................
If you have a flat tire 226...............
Jack point 230.........................
Jacking precautions 226...............
Jacking up 230........................
Loosening wheel bolts 229.............
Lowering vehicle 233..................
Reinstalling wheel ornament 234........
Removing wheel ornament 229.........
Wheel block 228.......................
Wheel bolts 232.......................
Floor mat 190...........................
Fluid level
Washer fluid 282......................
Fog light switch, Rear 119................
Fold−down rear seat 46..................
Foreign countries, Operation in 196.......
Front passenger ’s seat belt
reminder buzzer 127...................
Front passenger ’s seat belt
reminder light 127.....................
Front seat
Rear seat entry 45.....................
Front seats 42..........................
Fuel
Filler door opener 38...................
Fuel economy 216.....................
Fuel pump shut off system 196..........
Gauge 124............................
Operation in foreign countries 196......
Tank cap 38...........................
Fuel information 194.....................
Fuel pump shut off system 196............
Fuse
Fuse box 280..........................
Fuse locations 259......................
G
Gauge
Fuel 124..............................
Good driving practice 156................
AYGO WE 99E37E11 02.18