check engine light TOYOTA YARIS 2019 Owners Manual (in English)

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YARIS SEDAN_OM_OM99S50z_(U)
2-4. Fuel and Emission
Fuel-Filler Lid and Cap
WARNING
■When removing the fuel-filler cap, loosen the cap slightly and wait for
any hissing to stop, then remove it
Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if
ingested. Fuel spray is released when there is pressure in the fuel tank and
the fuel-filler cap is removed too quickly.
■ Before refueling, stop the engine, and always keep sparks and f lames
away from the filler neck
Fuel vapor is dangerous. It could be ignited by sparks or flame s causing
serious burns and injuries.
Additionally, use of the incorrect fuel-filler cap or not using a fuel-filler cap
may result in a fuel leak, which could result in serious burns or death in an
accident.
■ Do not continue refueling after the fuel pump nozzle shuts off automat-
ically
Continuing to add fuel after the fuel pump nozzle has shut off automatically
is dangerous because overfilling the fuel tank may cause fuel o verflow or
leakage. Fuel overflow and leakage could damage the vehicle and if the fuel
ignites it could cause a fire and explosion resulting in serious injury or
death.
NOTICE
Always use only a genuine Toyota fuel-filler cap or an approved equivalent,
available at your Toyota dealer. The wrong cap can result in a serious mal-
function of the fuel and emission control systems.
It may also cause the check engine light in the combination met er to illumi-
nate.

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YARIS SEDAN_OM_OM99S50z_(U)
2-4. Fuel and Emission
Open
To remove the fuel-filler cap, turn it
counterclockwise. Attach the
removed cap to the inner side of
the fuel lid.
Close
To close the fuel-filler cap, turn it
clockwise until a click is heard.
Fuel-Filler Cap
1
2
NOTICE
If the check fuel cap warning light illuminates, the fuel-filler cap may not be
properly installed. If the warning light illuminates, park your vehicle safely off
the right-of-way, remove the fuel-filler cap and reinstall it c orrectly. After the
cap has been correctly installed, the fuel cap warning light ma y continue to
illuminate until a number of driving cycles have been completed. A drive
cycle consists of starting the engine (after four or more hours with the
engine off) and driving the vehicle on city and highway roads.
Continuing to drive with the check fuel cap warning light illum inated could
cause the check engine light to illuminate as well.

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YARIS SEDAN_OM_OM99S50z_(U)
2-8. Security System
■Arming
The system is armed when the
ignition is switched from ON to
off.
The security indicator light in
the combination meter flashes
every 2 seconds until the sys-
tem is disarmed.
■Disarming
The system is disarmed when the ignition is switched ON with the
correct programmed key. The sec urity indicator light illuminates for
about 3 seconds and then turns off. If the engine does not star t with
the correct key, and the security indicator light remains illuminated
or flashing, try the following:
Make sure the key is within the operational range for signal tr ans-
mission. Switch the ignition of f, and then restart the engine. If the
engine does not start after 3 or more tries, contact your Toyota
dealer.
● The engine may not start and security indicator light may illum inate or flash
if the key is placed in an area where it is difficult for the system to detect the
signal, such as on the dashboard or in the glove compartment. M ove the
key to a location within the signal range, switch the ignition off, and then
restart the engine.
● Signals from a TV or radio station, or from a transceiver or mo bile telephone
could interfere with your immobilizer system. If you are using the proper key
and the engine fails to start, check the security indicator light.
● If the security indicator light flashes continuously while you are driving, do
not shut off the engine. Go to your Toyota dealer and have it checked. If the
engine is shut off while the indicator light is flashing, you w ill not be able to
restart it.
● Because the electronic codes are reset when the immobilizer sys tem is
repaired, the keys are needed. Make sure to bring all the keys to your Toy-
ota dealer so that they can be programmed.
Operation

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YARIS SEDAN_OM_OM99S50z_(U)
2-9. Driving Tips
2
Before Driving
Winter Driving
Carry emergency gear, including tire chains, window scraper, flares, a
small shovel, jumper cables, and a small bag of sand or salt.
Ask your Toyota dealer to check the following:
• Have the proper ratio of ant ifreeze in the radiator.
Refer to Engine Coolant on P. 445.
• Inspect the battery and its cabl es. Cold reduces battery capacity.
• Use an engine oil appropriate for the lowest ambient temperatures that the vehicle w ill be driven in (P. 442).
• Inspect the ignition system for damage and loose connections.
• Use washer fluid made with antifreeze but do not use engine cool-
ant antifreeze for washer fluid ( P. 449).
●Do not use the parking brake in freezing weather as it may freeze. Instead,
shift to 1 or R with a manual transaxle and to P with an automa tic transaxle.
Block the rear wheels.
● Remove snow before driving. Snow left on the windshield is dang erous as it
could obstruct vision.
● Do not apply excessive force to a window scraper when removing ice or fro-
zen snow on the mirror glass and windshield.
● Never use warm or hot water for removing snow or ice from windo ws and
mirrors as it could result in the glass cracking.
● Drive slowly. Braking performance can be adversely affected if snow or ice
adheres to the brake components. If this situation occurs, drive the vehicle
slowly, releasing the accelerator pedal and lightly applying the brakes sev-
eral times until the brake performance returns to normal.

YARIS SEDAN_OM_OM99S50z_(U)
1513-1. Start/Stop Engine
3
When Driving
If the engine cannot be started due to a dead key battery, the engine
can be started using the following procedure:
Continue to depress the brake pedal firmly until the engine has
completely started.
Manual transaxle:
Continue to depress the clutch p edal firmly until the engine has
completely started.
Make sure that the push button start indication light (green) f lashes.
The push button start indicator light (green) will flash even if the push but-
ton start is pressed before depressing the clutch pedal (manual transaxle)
or the brake pedal (automatic transaxle). If the clutch pedal i s depressed
(manual transaxle) or the brake pedal is depressed (automatic transaxle)
under this condition, the engine can be started by resuming the procedure
following this.
Touch the push button start
using the backside of the key
(as shown) while the push but-
ton start indicator light (green)
flashes.
When touching the push button
start using the backside of the key
as shown in the illustration, touch
the push button start with the lock
switch side of the key facing up.
Make sure that the push button start indicator light (green) tu rns on.
Press the push button start to start the engine.
● The engine cannot be started unless the clutch pedal is fully d epressed
(manual transaxle) or the brake pedal is fully depressed (autom atic tran-
saxle).
● If there is a malfunction with the push button start function, the push button
start indicator light (amber) flashes. In this case, the engine may start, how-
ever, have the vehicle checked at your Toyota dealer as soon as possible.
● If the push button start indicator light (green) does not illuminate, perform
the operation from the beginning again. If it does not illumina te, have the
vehicle checked at your Toyota dealer.
● To switch the ignition position without starting the engine, perform the follow-
ing operations after the push button start indicator light (gre en) turns on.
Release the clutch pedal (manual transaxle) or brake pedal (aut omatic
transaxle).
Engine Start Function Wh en Key Battery is Dead
1
2
3
Smart Key
Indicator light
Push button start
Q
R
S
N

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YARIS SEDAN_OM_OM99S50z_(U)
3-2. Combination Meter and Display
Warning/Indicator Lights
Warning/Indicator lights will appear in any of the highlighted areas
These lights turn on or flash to notify the user of the system operation
status or a system malfunction.
Combination Meter
Analog Speedometer Type
(With Tachometer)Center of Dashboard
Warning Lights
*1Master Warning Light
( P. 522)*1Check Engine Light
(P. 522)
*1, 2Brake System Warning
Light ( P. 522)*1
(Red)
High Engine Coolant
Temperature Warning
Light (P. 522)
*1ABS Warning
Light (P. 522)*1
(If equipped)
Automatic Transaxle
Warning Light ( P. 522)
*1Charging System
Warning Light (P. 522)*1Power Steering
Malfunction Indicator
Light (P. 522)
*1Engine Oil Warning
Light (P. 522)*1Air Bag/Front Seat Belt
Pretensioner System
Warning Light ( P. 522)

YARIS SEDAN_OM_OM99S50z_(U)
1633-2. Combination Meter and Display
3
When Driving
*1: The light turns on when the ignition is switched on for an operation check,
and turns off a few seconds later or when the engine is started . If the light
does not turn on or remains turned on, have the vehicle inspect ed at your
Toyota dealer.
*2: The light turns on continuously when the parking brake is appl ied.
These lights turn on or flash to notify the user of the system operation
status or a system malfunction.
*1
(If equipped)
LED Headlight Warning
Light (
P. 522)(If equipped)
Low Washer Fluid Level
Warning Light ( P. 522)
Low Fuel Warning Light
( P. 522)
*1
(If equipped)
Tire Pressure Monitoring
System Warning Light
(P. 522)
*1Check Fuel Cap
Warning Light ( P. 522)*1
(Red)
KEY Warning Light
(P. 522)
Seat Belt Warning Light
(Front seat) ( P. 522)
(Amber)
Smart City Brake
Support (SCBS)
Warning Light ( P. 522)
Door-Ajar Warning Light
( P. 522)
Indicator Lights
(Green)
KEY Indicator Light
(P. 148)*1DSC OFF Indicator Light
(P. 208)
*1
(If equipped)
Wrench Indicator Light
(P. 164)*1
(Red)
Smart City Brake
Support (SCBS)
Indicator Light ( P. 221)
*1TCS/DSC Indicator
Light (P. 206, 208)*1Smart City Brake
Support (SCBS) OFF
Indicator Light ( P. 222)

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YARIS SEDAN_OM_OM99S50z_(U)
3-2. Combination Meter and Display
*1: The light turns on when the ignition is switched on for an operation check,
and turns off a few seconds later or when the engine is started . If the light
does not turn on or remains turned on, have the vehicle inspect ed at your
Toyota dealer.
When the ignition is switched ON,
the wrench indicato r light is illumi-
nated and then turns off after a
few seconds.
The wrench indicator light is illu-
minated when the preset mainte-
nance period arrives. Verify the
content and perform mainte-
nance.
Refer to Maintenance Monitor on
P. 434.
(Blue)
Low Engine Coolant
Temperature Indicator
Light ( P. 165)
(If equipped)
Cruise Main Indication
(P. 226)
(If equipped)
Shift Position Indication
(P. 171)(White/
Green)
(If equipped)
Cruise Set Indication/
Indicator Light ( P. 226)
Headlight High-Beam
Indicator Light
( P. 185, 185)
(If equipped)
Select Mode Indicator
Light ( P. 214)
Turn Signal/Hazard
Warning Indicator Lights
( P. 189, 197) Lights-On Indicator Light
(
P. 181)
*1Security Indicator Light
(P. 128)*1Front Passenger
Air Bag Deactiva-
tion Indicator
Light ( P. 78)
Wrench Indicator Light

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YARIS SEDAN_OM_OM99S50z_(U)
4-1. Climate Control System
Operating Tips
• Operate the climate control system with the engine running.
• To prevent the battery from being discharged, do not leave the fan
control dial on for a long perio d of time with the ignition switched
ON when the engine is not running.
• Clear all obstructions such as l eaves, snow and ice from the hood
and the air inlet in t he cowl grille to imp rove the system efficiency.
• Use the climate control system to defog the windows and dehumi d-
ify the air.
• The recirculate mode should be used when driving through tunne ls
or while in a traffic jam, or when you would like to shut off o utside
air for quick cooling of the interior.
• Use the outside air position for ventilation or windshield defrosting.
• If the vehicle has been parked in direct sunlight during hot weather,
open the windows to let warm air escape, then run the climate con-
trol system.
• Run the air conditioner about 10 minutes at least once a month to
keep internal parts lubricated.
• Have the air conditioner checke d before the weather gets hot. Lack
of refrigerant may make the ai r conditioner less efficient.
The refrigerant specifications
are indicated on a label
attached to the inside of the
engine compartment. Check
the label before refilling the
refrigerant. If the wrong type of
refrigerant is used, it could
result in a serious malfunction
of the air conditioner.
For details, consult your Toyota
dealer.
Label

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YARIS SEDAN_OM_OM99S50z_(U)
6-5. Overheating
6
If Trouble Arises
Overheating
If the high engine coolant temperature warning light turns on:
Drive safely to the side of the road and park off the right-of-way.
Put a vehicle with an automatic t ransaxle in park (P), a manual tran-
saxle in neutral.
Apply the parking brake.
Turn off the air conditioner.
Check whether coolant or steam is escaping from the engine com-
partment.
If steam is coming from the engine compartment
Do not go near the front of t he vehicle. Stop the engine.
Wait until the steam dissipates, then open the hood and start the
engine.
If neither coolant nor steam is escaping
Open the hood and idle t he engine until it cools.
Make sure the cooling fan is operating, then turn off the engin e after
the temperature has decreased.
When cool, check th e coolant level.
If it is low, look for coolant lea ks from the radiator and hoses.
■If you find a leak or other damage, or if coolant is still leak ing:
Stop the engine and call your Toyota dealer.
Cooling fan
Cooling system cap
Coolant reservoir
If the high engine coolant temperature warning light turns on,
the vehicle loses power, or you hear a loud knocking or pinging
noise, the engine is probably too hot.
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