engine TOYOTA AYGO 2021 Service Manual

2074-1. Before driving
4
Driving
AYGO_OM_Europe_OM9A012E
WARNING
■When driving on slippery road surfaces
● Sudden braking, acceleration and steering may cause tire slippage and
reduce your ability to control the vehicle.
● Sudden acceleration, engine braking due to shifting, or changes in engine
speed could cause the vehicle to skid.
● After driving through a puddle, lightly depress the brake pedal to make
sure that the brakes are functioning properly. Wet brake pads may prevent
the brakes from functioning properly. If the brakes on only one side are wet
and not functioning properly, steering control may be affected.
■ When shifting the shift lever
● On vehicles with a multi-mode manual transmission, do not let the vehicle
roll backward while the shift lever is in a driving position, or roll forward
while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering
performance, resulting in an accident or damage to the vehicle.
● Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Do not shift the shift lever to E or M (multi-mode manual transmission) or 1
(manual transmission) while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Moving the shift lever to N while the vehicle is moving will disengage the
engine from the transmission. Engine braking is not available when N is
selected.
● On vehicles with a multi-mode manual transmission, be careful not to shift
the shift lever with the accelerator pedal depressed. Shifting the shift lever
to a gear other than N may lead to unexpected rapid acceleration of the
vehicle that may cause an accident and result in death or serious injury.

2084-1. Before driving
AYGO_OM_Europe_OM9A012E
WARNING
■When the vehicle is stopped
● Do not race the engine.
If the vehicle is in any gear other than N, the vehicle may accelerate sud-
denly and unexpectedly, causing an accident.
● On vehicles with a multi-mode manual transmission, in order to prevent
accidents due to the vehicle rolling away, always keep depressing the
brake pedal while the engine is running, and apply the parking brake as
necessary.
● If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.
■ When the vehicle is parked
● Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a
fire.
• The temperature inside the vehicle may cause the plastic lenses and
plastic material of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the
interior of the vehicle, and may also cause a short circuit in the vehicle’s
electrical components.
● Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a
place such as the glove box or on the floor, it may be lit accidentally when
luggage is loaded or the seat is adjusted, causing a fire.
● Do not attach adhesive discs to the windshield or windows. Do not place
containers such as air fresheners on the instrument panel or dashboard.
Adhesive discs or containers may act as lenses, causing a fire in the vehi-
cle.
● Do not leave a door or window open if the curved glass is coated with a
metallized film such as a silver-colored one. Reflected sunlight may cause
the glass to act as a lens, causing a fire.

2094-1. Before driving
4
Driving
AYGO_OM_Europe_OM9A012E
WARNING
●On vehicles with a multi-mode manual transmission, always apply the
parking brake, shift the shift lever to E, M or R, stop the engine and lock
the vehicle.
Do not leave the vehicle unattended while the engine is running.
● Do not touch the exhaust pipes while the engine is running or immediately
after turning the engine off.
Doing so may cause burns.
● On vehicles with a multi-mode manual transmission, do not turn off the
engine until 1st or reverse is engaged properly and completely. Confirm
that the gear is engaged by viewing the gear position indicator.
Parking the vehicle without a gear engaged may cause the vehicle to
move result in an accident.
■ When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift
lever or depress the accelerator pedal, this could cause an accident or fire
due to engine overheating. Additionally, if the vehicle is parked in a poorly
ventilated area, exhaust gases may collect and enter the vehicle, leading to
death or a serious health hazard.
■ When braking
● When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also, the
parking brake may not securely hold the vehicle.
● If the brake booster device does not operate, do not follow other vehicles
closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
Have your brakes fixed immediately.
● Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
● The brake system consists of 2 individual hydraulic systems; if one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and the braking distance will
increase.
Have your brakes fixed immediately.

2114-1. Before driving
4
Driving
AYGO_OM_Europe_OM9A012E
NOTICE
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain, etc. Doing so may
cause the following serious damage to the vehicle:
● Engine stalling
● Short in electrical components
● Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer check the following:
● Brake function
● Changes in quantity and quality of engine oil, and transaxle fluid, etc.
● Lubricant condition for the bearings and suspension joints (where possi-
ble), and the function of all joints, bearings, etc.

2144-2. Driving procedures
AYGO_OM_Europe_OM9A012E
Engine (ignition) switch (vehicles without a
smart entry & start system)
Multi-mode manual transmission
Check that the parking brake is set.
Firmly depress the brake pedal, turn the engine switch to the “ON”
position and shift the shift lever to N. (P. 222)
Turn the engine switch to the “START” position to start the engine.
Manual transmission
Check that the parking brake is set.
Check that the shift lever is set in N. (P. 227)
Firmly depress the clutch pedal.
Turn the engine switch to the “START” position to start the engine.
“LOCK”
The steering wheel is locked and
the key can be removed.
“ACC”
Some electrical components such
as the audio system can be used.
“ON”
All electrical components can be
used.
“START”
For starting the engine.
Starting the engine
Changing the engine switch positions
1
2
3
4

2154-2. Driving procedures
4
Driving
AYGO_OM_Europe_OM9A012E
■Turning the key from “ACC” to “LOCK”
Shift the shift lever to E, M or R (multi-mode manual transmission) or N
(manual transmission). (P. 222, 227)
■If the engine does not start
The engine immobilizer system may not have been deactivated. (P. 75)
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
■When the steering lock cannot be releasedPush in the key and turn it to the
“LOCK” position.
When starting the engine, the engine
switch may seem stuck in the “LOCK”
position. To free it, turn the key while turn-
ing the steering wheel slightly left and
right.

2164-2. Driving procedures
AYGO_OM_Europe_OM9A012E
WARNING
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■ Caution when driving
Do not turn the engine switch to the “LOCK” position while driving. If, in an
emergency, you must turn the engine off while the vehicle is moving, turn
the engine switch only to the “ACC” pos ition to stop the engine. An accident
may result if the engine is stopped while driving. ( P. 439)
NOTICE
■To prevent battery discharge
Do not leave the engine switch in the “ACC” or “ON” position for long peri-
ods of time without the engine running.
■ When starting the engine
● Do not crank the engine for more than 30 seconds at a time. This may
overheat the starter and wiring system.
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately.

217
4
4-2. Driving procedures
Driving
AYGO_OM_Europe_OM9A012E
Engine (ignition) switch (vehicles with a
smart entry & start system)
Multi-mode manual transmission
Check that the parking brake is set.
Firmly depress the brake pedal, press the engine switch once and
shift the shift lever to N. (P. 222)
The smart entry & start system indicator light (green) will turn on. If the
indicator light does not turn on, the engine cannot be started.
Press the engine switch shortly
and firmly.
When operating the engine switch,
one short, firm press is enough. It
is not necessary to press and hold
the switch.
The engine will crank until it starts
or for up to 30 seconds, whichever
is less.
Continue depressing the brake
pedal until the engine is completely
started.
The engine can be started from
any engine switch mode.
Performing the following operations when carrying the elec-
tronic key on your person starts the engine or changes engine
switch modes.
Starting the engine

2184-2. Driving procedures
AYGO_OM_Europe_OM9A012E
Manual transmission
Check that the parking brake is set.
Check that the shift lever is set in N. (P. 227)
Firmly depress the clutch pedal.
The smart entry & start system indicator light (green) will turn on. If the
indicator light does not turn on, the engine cannot be started.
Press the engine switch shortly
and firmly.
When operating the engine switch,
one short, firm press is enough. It
is not necessary to press and hold
the switch.
The engine will crank until it starts
or for up to 30 seconds, whichever
is less.
Continue depressing the clutch
pedal until the engine is completely
started.
The engine can be started from
any engine switch mode.
Stop the vehicle.
Shift the shift lever to E, M or R (multi-mode manual transmission)
or N (manual transmission).
Set the parking brake. (P. 230)
Press the engine switch.
Release the brake pedal (multi-mode manual transmission) or
clutch pedal (manual transmission) and check that the smart entry
& start system indicator light (green) is off.
Stopping the engine

2194-2. Driving procedures
4
Driving
AYGO_OM_Europe_OM9A012E
Modes can be changed by pressing the engine switch with the brake
pedal (multi-mode manual transmission) or clutch pedal (manual
transmission) released. (The mode changes each time the switch is
pressed.)
Off
The emergency flashers can be
used.
The smart entry & start system
indicator light (green) is off.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
The smart entry & start system
indicator light (green) flashes
slowly.
IGNITION ON mode
All electrical components can be
used.
The smart entry & start system
indicator light (green) flashes
slowly.
■Auto power off function
If the vehicle is left in ACCESSORY or IGNITION ON mode (the engine is not
running) for more than an hour, the engine switch will automatically turn off.
However, this function cannot entirely prevent battery discharge. Do not leave
the vehicle with the engine switch in ACCESSORY or IGNITION ON mode for
long periods of time when the engine is not running.
■Electronic key battery depletion
P. 148
■Conditions affecting operation
P. 146
■Notes for the entry function
P. 147
Changing engine switch modes