Fuel system TOYOTA YARIS 2017 Owner's Manual

3807-3. Do-it-yourself maintenance
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You may drain the fuel filter yourself. However, as the operation is dif-
ficult, we recommend having it drained by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional. Even if you decide to drain it yourself, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
The water in the fuel filter needs to be drained if the fuel filter warning
light comes on. (P. 442)
Turn the engine switch to the “LOCK” position (vehicles without a
smart entry & start system) or off (vehicles with a smart entry &
start system).
Place a small tray under the drain plug to catch the water and any
fuel that comes out.
Turn the drain plug counter-
clockwise about 2 to 2 1/2
turns.
Operate the priming pump until
fuel begins to run out.
After draining, tighten the drain plug by hand.
Fuel filter (diesel engine)
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427
8When trouble arises
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8-1. Essential information
Emergency flashers ........... 428
If your vehicle has to
be stopped in
an emergency .................. 429
8-2. Steps to take in
an emergency
If your vehicle needs to
be towed .......................... 431
If you think something is
wrong ............................... 437
Fuel pump shut off system
(gasoline engine only) ..... 438
If a warning light turns on
or a warning buzzer
sounds ............................. 439
If you have a flat tire
(vehicles with
a spare tire) ..................... 453
If you have a flat tire
(vehicles with
an emergency tire
puncture repair kit)........... 468
If the engine will not start ... 484
If the electronic key does
not operate properly
(vehicles with a smart
entry & start system)........ 486
If the vehicle battery is
discharged ....................... 488
If your vehicle overheats .... 493
If you run out of fuel and
the engine stalls
(diesel engine only) ......... 497
If the vehicle becomes
stuck ................................ 499

4388-2. Steps to take in an emergency
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Fuel pump shut off system (gasoline engine
only)
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without a smart entry & start system
Turn the engine switch to the “ACC” or “LOCK” position.
Restart the engine.
Vehicles with a smart entry & start system
Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
To minimize the risk of fuel leakage when the engine stalls or
when an airbag inflates upon collision, the fuel pump shut off
system stops the supply of fuel to the engine.
NOTICE
■ Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
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4428-2. Steps to take in an emergency
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(Yellow)
Automatic High Beam indicator*2
Indicates a malfunction in the Automatic High Beam sys-
tem.
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Yellow)
Cruise control indicator*2
Indicates a malfunction in the cruise control system.
 P. 251
(Yellow)
(Yellow)
LDA indicator*2 and Lane marker indicators*2
Indicates a malfunction in the LDA system.
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Yellow)
Speed limiter indicator*2
Indicates a malfunction in the speed limiter system.
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Flashes)
Stop & Start cancel indicator*2
Indicates a malfunction in the Stop & Start system.
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Fuel filter warning light (diesel engine only)
Indicate that the amount of accumulated water in the fuel
filter has reached the specified level.
 P. 380
(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator*2
Indicates a malfunction in the smart entry & start system.
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional.
Open door warning light (warning buzzer)*3
Indicates that one or more of the doors is not fully closed.
 Check that all the side doors and back door are
closed.
Warning lightWarning light/Details/Actions

4438-2. Steps to take in an emergency
8
When trouble arises
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Low fuel level warning light
Gasoline engine: Indicates that remaining fuel is about
5.8 L (1.5 gal., 1.3 Imp.gal.) or less.
Diesel engine: Indicates that remaining fuel is about 6.4 L
(1.7 gal., 1.4 Imp.gal.) or less.
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)*4
Warns the driver and front passenger to fasten their seat
belts.
 Fasten the seat belt.
If the passenger’s seat is occupied, the front passen-
ger’s seat belt also needs to be fastened to make the
warning light (warning buzzer) turn off.
(On the center panel)
Rear passengers’ seat belt reminder lights
(warning buzzer)*2, 4
Warns the rear passengers to fasten their seat belts.
 Fasten the seat belt.
Tire pressure warning light*2
When the light comes on: Low tire inflation pressure such
as
• Natural causes ( P. 448)
• Flat tire ( P. 453, 468)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case the
light does not turn off even if the tire inflation pres-
sure is adjusted, have the system checked by any
authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system.
( P. 448)
 Have the system checked by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional.
Warning lightWarning light/Details/Actions

4468-2. Steps to take in an emergency
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*4: Driver’s and passenger’s seat belt buzzer:
The driver’s and passenger’s seat belt buzzer sounds to alert the driver
and passenger that his or her seat belt is not fastened. The buzzer sounds
for 30 seconds after the vehicle reaches a speed of at least 20 km/h (12
mph). Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 90 more seconds.
*5: The DPF system warning light may not turn off when the engine oil change
reminder light is on. In this event, have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
*6: To determine whether or not your vehicle has a DPF system, contact any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■ Passenger detection sensor and passenger seat belt reminder
● If luggage is placed on a passenger seat, the passenger detection sensor
may cause the warning light to flash 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 indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle imme-
diately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.
■ Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the
warning buzzer may sounds.

4508-2. Steps to take in an emergency
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NOTICE
■If the fuel filter warning light comes on (diesel engine only)
Never drive the vehicle with the warning light on. Continued driving with
water accumulated in the fuel filter will damage the fuel injection pump.
■ When the DPF system warning light comes on (diesel engine with a
DPF system)
If the DPF system warning light is left on without performing cleaning, after
an additional 100 to 300 km (62 to 187 miles), the malfunction indicator
lamp may come on. If this happens, have the vehicle inspected by any
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional immediately.
■ To ensure the tire pressure warning system operates properly (vehi-
cles with a tire pressure warning system)
Do not install tires with different specifications or makers, as the tire pres-
sure warning system may not operate properly.
Interior
buzzer
Exterior
buzzer
Warning
lightWarning light/Details/Actions
ContinuousContinuous(Flashes in yellow)
Smart entry & start system indicator (Mul-
tidrive)
The electronic key was carried outside the
vehicle and the driver’s door was opened
and closed while any shift position other
than P was selected without turning off the
engine switch.
 Change the shift position to P.
 Bring the electronic key back into the
vehicle.

4848-2. Steps to take in an emergency
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If the engine will not star t
One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle’s tank.
Gasoline engine: Refuel the vehicle.
Diesel engine: P. 4 9 7
● The engine may be flooded. (gasoline engine)
Try to restart the engine again following correct starting procedures.
( P. 182, 185)
● There may be a malfunction in the engine immobilizer system.
( P. 7 6 )
One of the following may be the cause of the problem:
● The battery may be discharged. (P. 488)
● The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning due to an electrical
problem such as an open circuit or a blown fuse. However, an interim
measure is available to start the engine. ( P. 485)
If the engine will not start even though correct starting proce-
dures are being followed ( P. 182, 185), consider each of the fol-
lowing points:
The engine will not start even though the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low
volume.
The starter motor does not turn over (vehicles with a smart entry
& start system).

4978-2. Steps to take in an emergency
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When trouble arises
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If you run out of fuel and the engine stalls
(diesel engine only)
Refuel your vehicle.
Pull the rubber strip on the edge to unhook it from the cover, and
then push the tabs in and lift the cover off.
To bleed the fuel system, oper-
ate the priming pump until you
feel more resistance.
If you run out of fuel and the engine stalls
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Left-hand drive vehiclesRight-hand drive vehicles
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4988-2. Steps to take in an emergency
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Reinstall the cover, and then hook the rubber strip’s groove onto the
cover.
Start the engine. ( P. 182, 185)
If the engine does not start after the above steps have been performed,
wait for 10 seconds and then try steps 3 and 5 again. If the engine still
does not start, contact any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional.
After starting the engine, depress the accelerator pedal lightly until the
engine runs smoothly.
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Left-hand drive vehiclesRight-hand drive vehicles
NOTICE
■ When restarting the engine
● Do not crank the engine before refueling and operating the priming pump.
This may damage the engine and fuel system.
● Vehicles without a smart entry & start system: Do not crank the engine for
more than 30 seconds at a time. This may overheat the starter and wiring
system.
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