2020 TOYOTA YARIS HATCHBACK check engine

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1753-2. 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.
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. 388.
(Blue)
Low Engine Coolant
Temperature Indicator
Light ( P. 176)
(If equipped)
Cruise Main Indication
(P. 237)
(If equipped)
Shift Position Indication
(P. 182)(White/
Green)
(If equipped)
Cruise Set Indication/
Indicator Light ( P. 237)
Headlight High-Beam
Indicator Light
( P. 196, 196)
(If equipped)
Select Mode Indicator
Light ( P. 225)
Turn Signal/Hazard
Warning Indicator Lights
( P. 199, 208) Lights-On Indicator Light
(
P. 192)
*1Security Indicator Light
(P. 137)*1Front Passenger
Air Bag Deactiva-
tion Indicator
Light ( P. 82)
Wrench Indicator Light

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1853-3. Transaxle
3
When Driving
If the selector lever will not move from P using the proper shift proce-
dure, continue to hold down the brake pedal.
Remove the shift-lock override
cover using a cloth-wrapped flat
head screwdriver.
Insert a screwdriver and push it
down.
Press and hold the lock-release
button.
Move the selector lever.
Take the vehicle to your Toyota dealer to have the system check ed.
The manual shift mode gives you the feel of driving a manual tran-
saxle vehicle by allowing you to operate the selector lever man ually.
This allows you to control engine rpm and torque to the drive w heels
much like a manual transaxle when more control is desired.
To change to manual shift mode,
shift the lever from D to M.
To return to automatic shift mo de, shift the lever from M to D.
Shift-Lock Override
Cover
1
2
3
Manual Shift Mode
4
5

256
YARIS_YARIS HATCHBACK_OM_OM99V59z_(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

370
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
4-3. Bluetooth®
*1: Setting which detects the existence of a device external to the Bluetooth®
unit
Unable to perform pair-
ing.The Bluetooth® func-
tion and the Find Mode/
Visible setting
*1 on the
device may turn off
automatically after a
period of time has
elapsed depending on
the device.
Check whether the
Bluetooth® function
and the Find Mode/Vis-
ible setting
*1 on the
device are turned on
and pairing or recon-
nect.
Does not connect auto-
matically when starting
the engine.
Automatically con-
nects, but then discon-
nects suddenly.
Disconnects intermit-
tently.
The device is in a loca-
tion in which radio
wave interference can
occur easily, such as
inside a bag in a rear
seat, in a rear pocket of
a pair of pants.
Move the device to a
location in which radio
wave interference is
less likely to occur.
Does not connect auto-
matically when starting
the engine.The pairing information
is updated when the
device OS is updated.
Perform pairing again.
SymptomCauseSolution method

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3915-3. Owner Maintenance
5
Maintenance and Care
WARNING
■Do not perform maintenance work if you lack sufficient knowledge and
experience or the proper tools an d equipment to do the work. Have
maintenance work done by a qualified technician
Performing maintenance work on a vehicle is dangerous if not do ne prop-
erly. You can be seriously injured while performing some mainte nance pro-
cedures.
■ If you must run the engine while working under the hood, make c ertain
that you remove all jewelry (especially rings, bracelets, watch es, and
necklaces) and all neckties, scarves, and similar loose clothin g before
getting near the engine or cooling fan which may turn on unexpe ctedly
Working under the hood with the engine running is dangerous. It becomes
even more dangerous when you wear jewelry, loose clothing or ha ve long
hair or a long beard.
Either can become entangled in moving parts and result in injur y.
■ Switch the ignition to off and make sure the fan is not runnin g
before attempting to work near the cooling fan
Working near the cooling fan when it is running is dangerous. T he fan could
continue running indefinitely even if the engine has stopped an d the engine
compartment temperature is high. You could be hit by the fan an d seriously
injured.
■ Do not leave items in the engine compartment
After you have finished checking or doing servicing in the engi ne compart-
ment, do not forget and leave items such as tools or rags in th e engine com-
partment.
Tools or other items left in the engine compartment could cause engine
damage or a fire leading to an unexpected accident.

484
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
6-5. Overheating
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 the 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.
1
2
3
4
5
6
7
1
2
3

4906-7. Warning/Indicator Lights and Warning Sounds
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
Electronic Brake Force Distribution System Warning
If the electronic brake force distribution control unit deter-
mines that some components are operating incorrectly,
the control unit may illuminate the brake system warning
light and the ABS warning light simultaneously. The prob-
lem is likely to be the electronic brake force distribution
system.
Charging System Warning Light
If the warning light illuminates while driving, it indicates a
malfunction of the alternator or of the charging system.
Drive to the side of the road and park off the right-of-way.
Consult your Toyota dealer.
Engine Oil Warning LightThis warning light indicates low engine oil pressure.
If the light illuminates or the warning indication is dis-
played while driving:
Drive to the side of the road and park off the right-of-
way on level ground.
Turn off the engine and wait 5 minutes for the oil to
drain back into the oil pan.
Inspect the engine oil level P. 397. If it’s low, add the
appropriate amount of engine oil while being careful
not to overfill.
Start the engine and check the warning light.
If the light remains illuminated even though the oil level is
normal or after adding oil, stop the engine immediately
and have your vehicle towed to your Toyota dealer.
SignalWarning
1
2
3
4

4926-7. Warning/Indicator Lights and Warning Sounds
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
■Power Steering Malfunction Indicator Light
●If the indicator light illuminates/flashes, the power steering will not operate
normally. If this happens, the steering wheel can still be operated, however,
the operation may feel heavy compared to normal, or the steering wheel
could vibrate when turning.
● Repeatedly jerking the steering wheel left and right while the vehicle is
stopped or moving extremely slowly will cause the power steerin g system to
go into protective mode which will make the steering feel heavy , but this
does not indicate a problem. If this occurs, park the vehicle safely and wait
several minutes for the system to return to normal.
WARNING
■ Do not drive with the brake system warning light illuminated. C ontact
your Toyota dealer to have the brakes inspected as soon as poss ible
Driving with the brake system warning light illuminated is dang erous. It indi-
cates that your brakes may not work at all or that they could c ompletely fail
at any time. If this light remains illuminated, after checking that the parking
brake is fully released, have the brakes inspected immediately.
In addition, the effectiveness of the braking may diminish so y ou may need
to depress the brake pedal more strongly than normal to stop th e vehicle.
■ Do not drive with both the ABS warning light and brake warning light
illuminated. Have the vehicle towed to your Toyota dealer to have the
brakes inspected as soon as possible
Driving when the brake system warning light and ABS warning lig ht are illu-
minated simultaneously is dangerous.
When both lights are illuminated, the rear wheels could lock mo re quickly in
an emergency stop than under normal circumstances.
NOTICE
■ Charging System Warning Light
Do not continue driving when the charging system warning light is illumi-
nated because the engine could stop unexpectedly.
■ Engine Oil Warning Light
● Do not run the engine if the oil pressure is low. Otherwise, it could result in
extensive engine damage.
● Do not run the engine if the oil level is low. Otherwise, it co uld result in
extensive engine damage.
■ High Engine Coolant Temperature Warning Light
Do not drive the vehicle with the high engine coolant temperatu re warning
light illuminated. Otherwise, it could result in damage to the engine.