check engine TOYOTA AYGO X 2022 (in English) Owner's Guide

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6-3. Do-it-yourself maintenance
1Turn the engine switch off.
2 Open the fuse box cover.
Engine compartment: type A
fuse box
Push the tabs in and lift the lid off.
Engine compartment: type B
fuse box
Push the tabs in and lift the lid off.
NOTICE
■When replacing the battery
Use a flathead screwdriver of appro-
priate size. Applying excessive force may deform or damage the cover.
■For normal operation after replacing the battery
Observe the following precautions to
prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote con-trol.
●Do not bend either of the battery terminals.
■When removing the battery cover (vehicles without smart entry &
start system)
Do not forcibly remove the battery cover, otherwise it may be damaged.
If the battery cover is difficult to remove, lift the edge to remove it.
Checking and replacing
fuses
If any of the electrical compo-
nents do not operate, a fuse
may have blown. If this hap-
pens, check and replace the
fuses as necessary.
Checking and replacing
fuses

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7-2. Steps to take in an emergency
When trouble arises
■Slip indicator
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or
audio sound.
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front pas-senger seat, the front passenger
detection sensor may cause the warn- ing 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
For some models, the malfunction indi- cator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle immedi-ately. The malfunction indicator lamp will
go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer as soon as possi-ble.
■Electric power steering system
warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering sys-
tem warning light may come on and the warning buzzer may sound.
■When the tire pressure warning light comes on
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: P.313, 324
If the tire is not punctured: Check the tire inflation pressure after the tire tempera-ture has lowered sufficiently. Adjust the
inflation pressure to the appropriate level and carry out initialization. ( P.268)
■The tire pressure warning light may
come on due to natural causes
The tire pressure warning light may come on due to natural causes such as
natural air leaks and tire inflation pres- sure changes caused by temperature. In this case, adjusting the tire inflation
pressure is at the specified level and carry out initialization.
■If the tire pressure warning light frequently comes on after blinking
for 1 minute
If the tire pressure warning light fre- quently comes on after blinking for 1
minute when the engine switch is turned on, have it checked by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■Conditions that the tire pressure warning system may not function
properly
 P. 2 6 7
Warning lightDetails/Actions
Indicates a malfunction in:
 The VSC system;
 The TRC system; or
 The hill-start assist control system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.

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7-2. Steps to take in an emergency
■If “Oil Maintenance Required Soon”
is displayed
Indicates that the engine oil should be scheduled to be changed.
Check the engine oil and change it if necessary.
After changing the engine oil, make sure
to reset the message. ( P.260)
■If “Oil Maintenance Required Visit Your Dealer” is displayed
Indicates that the engine oil should be
changed.
Check and change the engine oil, and oil filter by any authorized Toyota retailer
or Toyota authorized repairer, or any reli- able repairer. After changing the engine oil, make sure to reset the message.
( P.260)
■If “Radar Cruise Control Unavail- able See Owner’s Manual” is dis-played
The dynamic radar cruise control sys- tem is suspended temporarily or until the problem shown in the message is
resolved. (causes and coping methods:  P.159)
■If “Radar Cruise Control Unavail- able” is displayed
The dynamic radar cruise control sys- tem cannot be used temporarily. Use the system when it becomes available
again.
■If a message that indicates the need for visiting your Toyota dealer is displayed
The system or part shown on the multi- information display is malfunctioning. Have the vehicle inspected by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer immediately.
■If a message that indicates the
need for referring to Owner’s Man- ual is displayed
●If “Engine Coolant Temp High” is dis-played, follow the instructions accord-ingly. ( P.339)
●If “Transmission Oil Temp. High” is
displayed, follow the instructions accordingly. ( P.135)
●If “Exhaust Filter Full” is displayed, fol- low the instructions accordingly. ( P.210)
●If any of the following messages are displayed on the multi-information dis-
play, it may indicate a malfunction. Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately.• “Smart Entry & Start System Malfunc-
tion”
●If any of the following messages are
displayed on the multi-information dis- play, it may indicate a malfunction. Immediately stop the vehicle and con-
tact any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer.
• “Braking Power Low” • “12-Volt Battery Charging System Malfunction”
• “Oil Pressure Low”

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7-2. Steps to take in an emergency
When trouble arises
Stop the vehicle in a safe place
on a hard, flat surface.
 Set the parking brake.
 Shift the shift lever to P (Multid-
rive) or N (manual transmission).
 Stop the engine.
 Turn on the emergency flashers.
( P.296)
 Check the degree of the tire
damage.
Do not remove the nail or screw
from the tire. Removing the object
may widen the opening and make
emergency repair with the repair kit
impossible.
■A flat tire that cannot be repaired with the emergency tire puncture repair kit
In the following cases, the tire cannot be repaired with the emergency tire punc-
If you have a flat tire
(vehicles with an emer-
gency tire puncture
repair kit)
Your vehicle is not equipped
with a spare tire, but instead is
equipped with an emergency
tire puncture repair kit.
A puncture caused by a nail or
screw passing through the tire
tread can be repaired tempo-
rarily using the emergency tire
puncture repair kit. (The kit
contains a bottle of sealant.
The sealant can be used only
once to temporarily repair one
tire without removing the nail
or screw from the tire.)
Depending on the damage, this
kit cannot be used to repair the
tire. ( P.313)
After temporarily repairing the
tire with the kit, have the tire
repaired or replaced by any
authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer. Repairs
conducted using the emer-
gency tire puncture repair kit
are only a temporary measure.
Have the tire repaired and
replaced as soon as possible.
WARNING
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the wheel beyond repair, which could
result in an accident.
Before repairing the tire

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7-2. Steps to take in an emergency
When trouble arises
When the engine does not start, the
following steps can be used as an
interim measure to start the engine
if the engine switch is functioning
normally.
Do not use this starting procedure
except in case of emergency.
1 Set the parking brake.
2 Check that the shift lever is in P
(Multidrive) or N (manual trans-
mission).
3 Turn the engine switch to ACC.
4 Press and hold the engine
switch for about 15 seconds
while depressing the brake
pedal (Multidrive) or clutch
pedal (manual transmission)
firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by any authorized Toyota
retailer or Toyota authorized repairer, or
any reliable repairer.
Emergency start function
(vehicles with smart entry &
start system)
If you lose your keys
New genuine keys can be
made by any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable
repairer using the other key
(vehicles without smart entry &
start system) or mechanical
key (vehicles with smart entry
& start system) and the key
number stamped on your key
number plate.
Keep the plate in a safe place
such as your wallet, not in the
vehicle.
NOTICE
■When an electronic key is lost
(vehicles with smart entry & start system)
If the electronic key remains lost, the
risk of vehicle theft increases signifi- cantly. Visit any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer immediately with all remaining electronic keys that were provided with your vehicle.

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7-2. Steps to take in an emergency
■When the electronic key does not
work properly
●Make sure that the smart entry & start
system has not been deactivated in the customization setting. If it is off, turn the function on. (Customizable
features: P.354)
●Check if battery-saving mode is set. If
it is set, cancel the function. ( P.103)
Use the mechanical key (P.95) in
order to perform the following oper-
ations:
1 Locks all the doors
2 Unlocks all the doors
1 Vehicles with Multidrive: Ensure
that the shift lever is in P and
depress the brake pedal.
Vehicles with manual transmis-
sion: Shift the shift lever to N
and depress the clutch pedal.
2 Touch the area behind the lock
button and unlock button on the
electronic key to the engine
switch.
When the electronic key is detected, a
buzzer sounds and the engine switch will turn to ON.
When the smart entry & start system is
deactivated in customization setting,
If the electronic key
does not operate prop-
erly (vehicles with smart
entr y & start system)
If communication between the
electronic key and vehicle is
interrupted ( P.103) or the
electronic key cannot be used
because the battery is
depleted, the smart entry &
start system and wireless
remote control cannot be used.
In such cases, the doors can
be opened and the engine can
be started by following the pro-
cedure below.
NOTICE
■In case of a smart entry & start system malfunction or other key-
related problems
Take your vehicle with all the elec- tronic keys provided with your vehicle
to any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer.
Locking and unlocking the
doors
Starting the engine

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7-2. Steps to take in an emergency
When trouble arises
the engine switch will turn to ACC.
3Firmly depress the brake pedal
(Multidrive) or clutch pedal
(manual transmission) and
check that is shown on the
multi-information display.
4 Press the engine switch shortly
and firmly.
In the event that the engine still
cannot be started, contact any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■Stopping the engine
Shift the shift lever to P (Multidrive) or N (manual transmission) and press the
engine switch as you normally do when stopping the engine.
■Electronic key battery
As the above procedure is a temporary
measure, it is recommended that the electronic key battery be replaced immediately when the battery is
depleted. ( P.275)
■Changing engine switch modes
Release the brake pedal (Multidrive) or clutch pedal (manual transmission) and
press the engine switch in step 3 above. The engine does not start and modes will be changed each time the switch is
pressed. ( P.133)
If you have a set of jumper (or
booster) cables and a second vehi-
cle with a 12-volt battery, you can
jump start your vehicle by following
the steps below.
1 Open the hood. (P.255)
If the vehicle batter y is
discharged
The following procedures may
be used to start the engine if
the vehicle’s battery is dis-
charged.
You can also call any autho-
rized Toyota retailer or Toyota
authorized repairer, or any reli-
able repairer or a qualified
repair shop.
Restarting the engine

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7-2. Steps to take in an emergency
When trouble arises
■Starting the engine when the bat- tery is discharged
The engine cannot be started by push- starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is stopped.
●Turn off any unnecessary electrical components when the vehicle is run-ning at a low speed for an extended
period, such as in heavy traffic.
■When the battery is removed or dis- charged
●Information stored in the ECU is cleared. When the battery is depleted, have the vehicle inspected at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Some systems may require initializa-tion. ( P.361)
■When removing the battery termi-
nals
When the battery terminals are removed, the information stored in the
ECU is cleared. Before removing the battery terminals, contact any autho-rized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
■Charging the battery
The electricity stored in the battery will
discharge gradually even when the vehi- cle is not in use, due to natural dis-charge and the draining effects of
certain electrical appliances. If the vehi- cle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the battery is discharged. Use the wireless remote control or the mechanical key
to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has
recharged but will start normally after the second attempt. This is not a mal-function.
●The engine switch mode is memo-rized by the vehicle. When the battery
is reconnected, the system will return to the mode it was in before the bat-tery was discharged. Before discon-
necting the battery, turn the engine switch off.If you are unsure what mode the
engine switch was in before the bat- tery discharged, be especially careful when reconnecting the battery.
●The Stop & Start system may not automatically stop the engine for up to
an hour.
■When replacing the battery
●Use a genuine battery specifically
designed for use with the Stop & Start system or a battery with equivalent specifications to a genuine battery. If
an unsupported battery is used, Stop & Start system functions may be restricted to protect the battery. Also,
battery performance may decrease and the engine may not be able to restart. Contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer for details.
●Use a battery that conforms to Euro-pean regulations.
●Use a battery that the case size is same as the previous one, 20 hour rate capacity (20HR) is equivalent or
greater, and performance rating (CCA) is equivalent or greater. Check the label on top of the battery for the
battery size and specifications (ex. LN2, 60Ah, 584A).• If the sizes differ, the battery cannot
be properly secured. • If the 20 hour rate capacity is low, even if the time period where the vehi-
cle is not used is a short time, the bat- tery may discharge and the engine may not be able to start.

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7-2. Steps to take in an emergency
engine coolant is unavailable.
6 Start the engine and turn the air
conditioning system on to check
that the radiator cooling fan
operate and to check for coolant
leaks from the radiator or hoses.
The fan operate when the air condition-
ing system is turned on immediately after a cold start. Confirm that the fan is operating by checking the fan sound
and air flow. If it is difficult to check these, turn the air conditioning system on and off repeatedly. (The fan may not
operate in freezing temperatures.)
7 If the fan is not operating: Stop
the engine immediately and
contact any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
If the fan is operating: Have the
vehicle inspected at the nearest
any authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer.
WARNING
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until the steam has subsided. The
engine compartment may be very hot.
●Keep hands and clothing (espe-cially a tie, a scarf or a muffler) away from the fan and belts. Failure
to do so may cause the hands or clothing to be caught, resulting in serious injury.
●Do not loosen the coolant reservoir caps while the engine and radiator
are hot. High temperature steam or coolant could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant
with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.

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8-1. Specifications
■Oil capacity (Drain and refill
[Reference*])
*: The engine oil capacity is a reference
quantity to be used when changing
the engine oil. Warm up and turn off
the engine, wait more than 5 minutes,
and check the oil level on the dip-
stick.
■Engine oil selection
Gasoline Engine 
“Toyota Genuine Motor Oil” is used
in your Toyota vehicle. Toyota rec-
ommends the use of approved
“Toyota Genuine Motor Oil”.
Another motor oil of matching qual-
ity can also be used.
Oil grade:
0W-16:
API grade SN “Resource-Conserv-
ing”, SN PLUS “Resource-Conserv-
ing” or SP “Resource Conserving”;
or ILSAC GF-6B multigrade engine
oil
0W-20 and 5W-30:
API grade SM “Energy-Conserv-
ing”, SN “Energy- Conserving”, SN
PLUS “Resource-Conserving” or
SP “Resource-Conserving”; or
ILSAC GF-6A multigrade engine oil
Recommended viscosity (SAE):
Preferred
Temperature range anticipated
before next oil change
SAE 0W-16 is filled into your Toyota
vehicle at manufacturing, and the
best choice for good fuel economy
and good starting in cold weather. If
SAE 0W-16 oil is not available,
SAE 0W-20 oil may be used. How-
ever, it should be replaced with
SAE 0W-16 at the next oil change.
Oil viscosity (0W-16 is explained
here as an example):
• The 0W in 0W-16 indicates the
characteristic of the oil which
allows cold startability. Oils with a
lower value before the W allow
Research Octane Number95 or higher
Fuel tank capacity
(Reference)35.0 L (9.2 gal., 7.7 Imp. gal.)
Lubrication system
With filter2.8 L (3.0 qt., 2.5 Imp. qt.)
Without fil-
ter2.5 L (2.6 qt., 2.2 Imp. qt.)