2017 TOYOTA YARIS iA check engine

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YARIS iA_OM_OM99N89z_(U)
2-3. Fuel and Emission
This vehicle is equipped with an emission control system (the catalytic
converter is part of this system ) that enables the vehicle to comply
with existing exhaust emissions requirements.
● Under U.S. federal law, any modification to the original-equipment emission
control system before the first sale and registration of a vehicle is subject to
penalties. In some states, such modification made on a used vehicle is also
subject to penalties.
● While the engine is off, the sound of a valve opening and closing can be
heard at the rear of the vehicle, however this does not indicate an abnormal-
ity. The vehicle has a selfchecking device and it operates while the engine is
off.
Emission Control System
WARNING
■Never park over or near anything flammable
Parking over or near anything flammable, such as dry grass, is dangerous.
Even with the engine turned off, the exhaust system remains very hot after
normal use and could ignite anything flammable. A resulting fire could
cause serious injury or death.
NOTICE
Ignoring the following precautions could cause lead to accumulate on the
catalyst inside the converter or cause the converter to get very hot. Either
condition will damage the converter and cause poor performance.
●USE ONLY UNLEADED FUEL.
● Do not drive your Toyota with any sign of engine malfunction.
● Do not coast with the ignition switched off.
● Do not descend steep grades in gear with the ignition switched off.
● Do not operate the engine at high idle for more than 2 minutes.
● Do not tamper with the emission control system. All inspections and
adjustments must be made by a qualified technician.
● Do not push-start or pull-start your vehicle.

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YARIS iA_OM_OM99N89z_(U)
2-3. Fuel and Emission
Fuel-Filler Lid and Cap
WARNING
■When removing the fuel-filler cap, l oosen 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 engi ne, and always keep sparks and flames
away from the filler neck
Fuel vapor is dangerous. It could be ignited by sparks or flames 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 overflow 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 meter to illuminate.

YARIS iA_OM_OM99N89z_(U)
1112-3. Fuel and Emission
2
Before Driving
To open, pull the remote fuel-filler
lid release.
To close, press the fuel-filler lid
until it locks securely.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 Lid
Remote fuel-filler lid release
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 correctly. After the
cap has been correctly installed, the fuel cap warning light may 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 illuminated could
cause the check engine light to illuminate as well.

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YARIS iA_OM_OM99N89z_(U)
2-7. 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 security indicator light illuminates for
about 3 seconds and then turns of f. If the engine does not start with
the correct key, and th e security indicator light remains illuminated
or flashing, try the following:
Make sure the key is within the operational range for signal trans-
mission. Switch the ignition off, 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 illuminate 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. Move 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 mobile 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 will not be able to
restart it.
● Because the electronic codes are reset when the immobilizer system 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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2-8. Driving Tips
2
Before Driving
Winter Driving
Carry emergency gear, including tire chains, window scraper, flares, a
small shovel, jumper cables, a nd a small bag of sand or salt.
Ask your Toyota dealer to check the following: • Have the proper ratio of antifreeze in the radiator. Refer to Engine Coolant on P. 425.
• Inspect the battery and its cables . Cold reduces battery capacity.
• Use an engine oil appropriate for the lowest ambient temperatures that the vehicle will be driven in ( →P. 422).
• Inspect the ignition sy stem for damage and loose connections.
• Use washer fluid made with antifreeze ⎯but do not use engine cool-
ant antifreeze for washer fluid ( →P. 429).
●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 automatic transaxle.
Block the rear wheels.
● Remove snow before driving. Snow left on the windshield is dangerous 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 windows 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 iA_OM_OM99N89z_(U)
1453-1. 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.
Verify that the push button start indication light (green) flashes.
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 is 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.
Verify that the push button start indicator light (green) turns on.
Press the push button star t to start the engine.
●The engine cannot be started unless the clutch pedal is fully depressed
(manual transaxle) or the brake pedal is fully depressed (automatic 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 illuminate, 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 (green) turns on.
Release the clutch pedal (manual transaxle) or brake pedal (automatic
transaxle).
Engine Start Function Wh en Key Battery is Dead
1
2
3
Smart Key
Indicator light
Push button start
4
5
6
1

YARIS iA_OM_OM99N89z_(U)
1573-2. Combination Meter and Display
3
When Driving
These lights turn on or flash to notify the user of the system operation
status or a system malfunction.
*1: The light turns on when the ignition is switched on for an operation chec\
k, 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 inspected at your
Toyota dealer.
*2: The light turns on continuously when the parking brake is applied.
Warning Lights
*1Master Warning Light
(→P. 501)*1Air Bag/Front Seat Belt
Pretensioner System
Warning Light ( →P. 501)
*1, 2Brake System Warning
Light (→P. 501) Low Fuel Warning Light
(
→P. 501)
*1ABS Warning
Light ( →P. 501)*1Check Fuel Cap
Warning Light ( →P. 501)
*1Charging System
Warning Light (→P. 501) Seat Belt Warning Light
(Front seat) (
→P. 501)
*1Engine Oil Warning
Light (→P. 501) Door-Ajar Warning Light
(
→P. 501)
*1Check Engine Light
(→P. 501)
(If equipped)
Low Washer Fluid Level
Warning Light ( →P. 501)
*1
(Red)
High Engine Coolant
Temperature Warning
Light (→P. 501)*1
(If equipped)
Tire Pressure Monitoring
System Warning Light
(→P. 501)
*1
(If equipped)
Automatic Transaxle
Warning Light ( →P. 501)*1
(Red)
KEY Warning Light
(→P. 501)
*1Power Steering
Malfunction Indicator
Light ( →P. 501)
(Amber)
(If equipped)
Smart City Brake
Support (SCBS)
Warning Light ( →P. 501)

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3-3. Transaxle
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 d ealer to have the system checked.
The manual shift mode gives you the feel of driving a manual tran-
saxle vehicle by allowing you to operate the selector lever manually.
This allows you to control engine rpm and torque to the drive wheels
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 mode, shift the lever from M to D.
Shift-Lock Override
Cover
1
2
3
Manual Shift Mode
4
5