2011 TOYOTA AYGO engine overheat

GAUGES, METERS AND SERVICE REMINDER INDICATORS125
MS15003
The warning lights indicate the engine
coolant temperature when the engine
switch is on. The engine operating tem-
perature will vary with changes in
weather and engine load.
The engine coolant temperature warning
light will come on when the engine switch
is turned to the “ON” position. After a few
seconds, the light will go off.
Engine coolant temperature is high...
When the engine coolant temperature be-
comes high, the engine coolant tempera-
ture warning light blinks. If the tempera-
ture rises further, the engine coolant
temperature warning light remains on and
at the same time, the “STOP” warning
light blinks. In such cases, the engine is
too hot. If your vehicle overheats, stop the
vehicle and allow the engine to cool down.
Your vehicle may overheat during severe
operating conditions, such as:
DDriving up a long hill on a hot day.
DReducing speed or stopping after high
speed driving.
DIdling for a long period with the air
conditioning on in stop−and−go traffic.
NOTICE
zDo not remove the thermostat from
the engine cooling system as this
may cause the engine to overheat.
The thermostat is designed to con-
trol the flow of coolant to keep the
temperature of the engine within
the specified operating range.
zDo not continue driving with an
overheated engine. See “If your
vehicle overheats” on page 225 in
Section 4.
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Engine coolant temperature
warning lights

GAUGES, METERS AND SERVICE REMINDER INDICATORS131
(f) Malfunction Indicator Lamp
This lamp warns that there is a problem
somewhere in your engine electrical sys-
tem.
If it comes on while you are driving, have
your vehicle checked/repaired by any au-
thorized Toyota dealer or repairer, or
another duly qualified and equipped pro-
fessional, as soon as possible.
On some models—
This lamp comes on in the following
cases.
a. There is a problem somewhere in your
engine, automatic transmission electri-
cal system or electronic throttle control
system.
b. The fuel tank is completely empty.
(See “Fuel gauge” on page 124 in this
Section for instructions.)
If it comes on while you are driving in
case a, have your vehicle checked/re-
paired by any authorized Toyota dealer or
repairer, or another duly qualified and
equipped professional, as soon as pos-
sible.
Vehicles with multi−mode manual transmis-
sion or vehicle stability control system—
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.
(g) “STOP” Warning Light
This light will come on when the engine
switch is turned to the “ON” position. After
a few seconds, the light will blink. When
the engine is started, the light will go off.
This means thesystem of the “STOP”
warning operating properly.
This light blinks in the following cases:
DWhen the engine coolant temperature
becomes high and the engine coolant
temperature warning light blinks. If the
engine coolant temperature rises fur-
ther, the engine coolant temperature
warning light remains on and at the
same time, the “STOP” warning light
blinks. In such cases, the engine is too
hot. If your vehicle overheats, stop the
vehicle and allow the engine to cool
down.
DWhen the engine oil pressure is too
low, the low engine oil pressure warn-
ing light comes on and at the same
time, the “STOP” warning light blinks.
In this case, pull off the road to a safe
place and stop the engine immediately.
Call any authorized Toyota dealer or re-
pairer, or another duly qualified and
equipped professional, for assistance.
(h) Low Fuel Level Warning Light and
Buzzer
The warning light blinks and the warning
buzzer comes on when the fuel level in
the tank becomes nearly empty. Fill up
the tank as soon as possible.
On incline or curves, due to the move-
ment of fuel in the fuel tank, the warning
light may blinks and the warning buzzer
may come on earlier than usual.
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132GAUGES, METERS AND SERVICE REMINDER INDICATORS
(i) Engine Coolant Temperature Warn-
ing Light
This light comes on or blinks in the fol-
lowing cases:
DThe light will come on when the engine
switch is turned to the “ON” position.
After a few seconds, the light will go
off.
DWhen the engine coolant temperature
becomes high, the engine coolant tem-
perature warning light blinks. If the
temperature rises further, the engine
coolant temperature warning light re-
mains on and the “STOP” warning light
blinks at the same time. In such cases,
stop the vehicle and check the engine.
For detailed instructions, see “If your
vehicle overheats” on page 225 in Sec-
tion 4.
NOTICE
Continuing to drive when the engine
coolant temperature warning light is
blinking or the engine coolant temper-
ature warning light remains on and
the “STOP” warning light is blinking
at the same time, could result in the
engine overheating.
(j) “Multi−mode Manual Transmission”
Warning Light (Multi−mode manual
transmission only)
This light will come on when the engine
switch is turned to the “ON” position. After
a few seconds, the light will go off. This
means the multi−mode manual transmis-
sion system isoperating properly.
NOTICE
In case the Multi−mode manual trans-
mission warning light comes on, pull
over, stop the engine and contact any
authorized Toyota dealer or repairer,
or another duly qualified and
equipped professional. Otherwise, the
vehicle may jerk when shifted gear or
the clutch may not engage properly.
In some cases the shift requirement
may be canceled and the gear may be
locked.
(k) “ABS” Warning Light
Vehicles without vehicle stability control
system—
The light comes on when the engine
switch is turned to the “ON” position. If
the anti−lock brake system works properly,
the light turns off after a few seconds.
Thereafter, if the system malfunctions, the
light comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
anti−lock brake systemdoes not operate,
but the brake system stilloperates con-
ventionally.
When the “ABS” warning light is on (and
the brake system warning light is off), the
anti−lock brake systemdoes not operate
so that the wheels could lock up during
sudden braking or braking on slippery
road surfaces.
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148ENGINE (IGNITION) SWITCH, TRANSMISSION AND PARKING BRAKE
Maximum allowable speeds
To get on a highway or to pass slower
traffic, maximum acceleration may be nec-
essary. Make sure you observe the follow-
ing maximum allowable speeds in each
gear:
gear km/h (mph)
1 51 (31)
2 95 (59)
3 139 (86)
CAUTION
DBe careful when accelerating, up-
shifting, downshifting or braking on
a slippery surface. Sudden accelera-
tion or engine braking could cause
the vehicle to spin or skid.
DTo drive down a long or steep hill,
reduce your speed and downshift.
Remember, if you ride the brakes
excessively, they may overheat and
fail.
DDuring driving the vehicle, do not
shift the shift lever to “N”. The en-
gine brake may not work and you
may get involved in an unexpected
accident. If you return the shift le-
ver from “N” to “M” because of an
unintended shifting, the gear posi-
tion will be changed accordingly to
the current vehicle speed.
DDo not apply the parking brake
while driving. Otherwise, it could
cause a skid and you may get in-
volved in an unexpected accident.
NOTICE
zThe system will not allow shifting
up or down to a gear that would
cause engine over−revving or un-
der−revving. In case of selecting a
gear position that may cause over−
revving, a warning buzzer (short
pulse sound) will sound.
zFrequent downshifting (more than 3
positions continuously) causes the
reduction of transmission life.
(b) Starting off
1. Start the engine as instructed in “How
to start the engine” on page 210 in
Section 3.
2. With your foot holding down the brake
pedal, shift the shift lever to the “M”
position properly. When the shift lever
is shifted to “M” position, the gear will
be shifted to 1st. On a slippery sur-
face, it is possible to start off with the
gear in 2nd. To start off with the gear
in 2nd, shift the shift lever from “N” to
“M” position, then operate the lever to
“+” direction. The gear will be shifted
to 2nd. Before starting off, always
make sure that the gear is engaged by
the gear position indicator, then de-
press the accelerator pedal.
NOTICE
Do not use 2nd gear to start off in
situations where the clutch load is
present such as when facing uphill.
If the gear cannot be engaged to 1st
or 2nd when the shift lever is shifted
from the “N” to “M” position, the “N”
indicator will blink and a warning buzz-
er (long pulse sound) will sound. In
this case, the system will re−try shift-
ing or the driver can operate the shift
lever to shift, as follows.
11 02.18
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INFORMATION BEFORE DRIVING YOUR TOYOTA197
The three−way catalytic converter is an
emission control device installed in the
exhaust system.
The purpose is to reduce pollutants in the
exhaust gas.
CAUTION
DKeep people and combustible mate-
rials away from the exhaust pipe
while the engine is running. The
exhaust gas is very hot.
DDo not drive, idle or park your ve-
hicle over anything that might burn
easily such as grass, leaves, paper
or rags.
NOTICE
A large amount of unburned gases
flowing into the three−way catalytic
converter may cause it to overheat
and create a fire hazard. To prevent
this and other damage, observe the
following precautions:
zUse only unleaded gasoline.
zDo not drive with an extremely low
fuel level; running out of fuel could
cause the engine to misfire, creat-
ing an excessive load on the three−
way catalytic converter.
zDo not allow the engine to run at
idle speed for more than 20 min-
utes.
zAvoid racing the engine.
zDo not push−start or pull−start your
vehicle.
zDo not turn off the engine while the
vehicle is moving.
zKeep your engine in good running
order. Malfunctions in the engine
electrical system, electronic ignition
system/distributor ignition system
or fuel system could cause an ex-
tremely high three−way catalytic
converter temperature.
zIf the engine becomes difficult to
start or stalls frequently, take your
vehicle in for a check−up to any
authorized Toyota dealer or repairer,
or another duly qualified and
equipped professional.
zTo ensure that the three−way
catalytic converter and the entire
emission control system operate
properly, your vehicle must receive
the periodic inspections required by
the Toyota Maintenance Schedule.
For scheduled maintenance
information, refer to the “Toyota
Service Booklet” or “Toyota
Warranty Booklet”.
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Three−way catalytic converter

204INFORMATION BEFORE DRIVING YOUR TOYOTA
The electric power steering system, us-
ing an electric motor, assists the turn-
ing of the steering wheel.
In the following cases, you may feel the
steering becomes heavy. However, the
electric power steering system warning
light does not come on. (Because it is
not a malfunction.)
DWhen maneuvering or turning frequently
over a long time
The power steering effect will be re-
duced to prevent the system from over-
heating. Avoid turning the steering
wheel, or stop the vehicle and turn the
engine switch to “ACC” or “LOCK”. The
system will become cool inabout 10
minutes.
NOTICE
Frequent maneuvering and turning
over a long time may cause damage
to the system in which the mecha-
nism prevents overheating of the elec-
tric power steering system.
DWhen racing the engine for 30 seconds
or more with the vehicle stopped
The normal power steering effect will
be obtained when you start driving.
DWhen the battery is discharged
Check the battery’s condition. If
necessary, recharge or replace the
battery. For details, see “Checking
battery condition” on page 278 in
Section 7−3.
INFORMATION
When the steering wheel is turned, a
motor operating sound (whining
sound) may be heard. This occurs
when the power steering motor works
and is not defective.
MS21008
Electric power steering system warning
light
The light comes on when the engine
switch is turned to the “ON” position. If
the electric power steering system warning
light works properly, the light turns off
after a few seconds. If thesystem has
malfunctions, the light comes on again.
If either of the following conditions oc-
cur, this indicates a malfunction some-
where in the parts monitored by the
warning light system. Contact any au-
thorized Toyota dealer or repairer, or
another duly qualified and equipped
professional, as soon as possible to
service the vehicle.
DThe light does not come on when the
engine switch is turned to the “ON”
position or remains on.
DThe light stays on while you are driv-
ing.
The warning light turning on while racing
the engine for a long time may not indi-
cate malfunction. To turn off the light, re-
start the engine and start driving.
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Electric power steering
system

STARTING AND DRIVING211
Before starting the engine, be sure to
follow the instructions in “(a) Before
cranking”.
Normal starting procedure
The multiport fuel injection system/sequen-
tial multiport fuel injection system in your
engine automatically controls the proper
air−fuel mixture for starting. You can start
a cold or hot engine as follows:
Multi−mode manual transmission:With
your foot off the accelerator pedal, turn
the engine switch to the “START” posi-
tion and crank the engine while depress-
ing the brake pedal. Release the key
when the engine starts. The engine can-
not be cranked if the shift lever is in a
position except “N” or the brake pedal
is not depressed.
Manual transmission:With your foot off
the accelerator pedal, crank the engine
by turning the engine switch to the
“START” position. Release it when the
engine starts.
Engine should be warmed up by driving,
not idling. For warming up drive with a
smoothly turning engine until the engine
coolant temperature is within the normal
range.
If the engine stalls...
Simply restart it, using the correct proce-
dure given in normal starting.
If the engine will not start...
See “If your vehicle will not start” on page
220 in Section 4.
NOTICE
zDo not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
zDo not race a cold engine.
zIf the engine becomes difficult to
start or stalls frequently, have the
engine checked immediately.
Pre−trip safety check
It is a good idea to do a safety check
before starting out on a trip. A few min-
utes of checking can help ensure safe and
pleasant driving. Just a basic familiarity
with your vehicle is required and a careful
eye! Or, if you would like, any authorized
Toyota dealer or repairer, or another duly
qualified and equipped professional, will
be pleased to make this check for you at
nominal cost.
CAUTION
If you make this check in an enclosed
garage, make sure there is adequate
ventilation. Engine exhaust is poison-
ous.
BEFORE STARTING THE ENGINE
Outside the vehicle
Tires.Check the pressure with a gauge
and look carefully for cuts, damage, or
excessive wear.
Wheel bolts.Make sure no bolts are mis-
sing or loose.
Fluid leaks.After the vehicle has been
parked for a while, check underneath for
leaking fuel, oil, water, or fluid. (Water
dripping from the air conditioning after use
is normal.)
Lights.Make sure the headlights, stop
lights, tail lights, turn signals and other
lights are all working. Check the headlight
aim.
Inside the vehicle
Spare tire, jack and wheel bolt wrench.
Check the spare tire pressure and make
sure you have your jack and wheel bolt
wrench.
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(b) Starting the engine

STARTING AND DRIVING213
DAlways slow down in gusty crosswinds.
This will allow you much better control.
DDrive slowly onto curbs and, if pos-
sible, at a right angle. Avoid driving
onto high, sharp−edged objects and
other road hazards. Failure to do so
can lead to severe tire damage such
as a tire burst.
Drive slowly when passing over bumps
or travelling on a bumpy road. Other-
wise, the impact could cause severe
damage to the tires and/or wheels.
DWhen parking on a hill, turn the front
wheels until they touch the curb so
that the vehicle will not roll. Apply the
parking brake, and place the transmis-
sion in “M(1)”, “E(1)” or “R” (multi−
mode manual transmission), or first or
reverse (manual transmission). If nec-
essary, block the wheels.
DWashing your vehicle or driving through
deep water may get the brakes wet. To
see whether they are wet, check that
there is no traffic near you, and then
press the pedal lightly. If you do not
feel a normal braking force, the brakes
are probably wet. To dry them, drive
the vehicle cautiously while lightly
pressing the brake pedal with the park-
ing brake applied. If they still do not
work safely, pull to the side of the road
and call any authorized Toyota dealer
or repairer, or another duly qualified
and equipped professional, for assis-
tance.
CAUTION
DBefore driving off, make sure the
parking brake is fully released and
the parking brake reminder light is
off.
DDo not leave your vehicle unat-
tended while the engine is running.
DDo not rest your foot on the brake
pedal while driving. It can cause
dangerous overheating, needless
wear, and poor fuel economy.
DTo drive down a long or steep hill,
reduce your speed and downshift.
Remember, if you ride the brakes
excessively, they may overheat and
not work properly.
DBe careful when accelerating, up-
shifting, downshifting or braking on
a slippery surface. Sudden accelera-
tion or engine braking could cause
the vehicle to skid or spin.
DDo not continue normal driving
when the brakes are wet. If they are
wet, your vehicle will require a
longer stopping distance, and it
may pull to one side when the
brakes are applied. Also, the park-
ing brake will not hold the vehicle
securely.
NOTICE
zDo not depress the accelerator and
brake pedals at the same time dur-
ing driving. If the brake pedal is
depressed while driving with the ac-
celerator pedal depressed, driving
torque may be restrained.
zDo not use the accelerator pedal or
depress the accelerator and brake
pedals at the same time to hold the
vehicle on a hill.
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Tips for driving in various
conditions