2013 TOYOTA YARIS HATCHBACK warning light

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4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_HB_U_52D44U
■Replacing tires and wheels (vehicles with a tire pressure warning
system)
If the ID code of the tire pressure warning valve and transmitter is not
registered, the tire pressure warning system will not work properly. After
driving for about 20 minutes, the tire pressure warning light blinks for 1
minute and stays on to indicate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even
if it has seldom or never been used or damage is not obvious.
■Routine tire inflation pressure checks (vehicles with a tire pressure
warning system)
The tire pressure warning system does not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.
■Low profile tires (vehicles with P195/50R16 tires)
Generally, low profile tires will wear more rapidly and tire grip perfor-
mance will be reduced on snowy and/or icy roads when compared to
standard tires. Be sure to use snow tires or tire chains on snowy and/or
icy roads and drive carefully at a speed appropriate for road and weather
conditions.
■Maximum load of tire
Check that the maximum load of the replacement tire is greater than 1/2
of the Gross Axle Weight Ratings (GAWR) of either the front axle or the
rear axle, whichever is greater.
For the GAWR, see the Certification
Label. For the maximum load of the
tire, see the load limit at maximum cold
tire inflation pressure mentioned on the
sidewall of the tire. (→P. 356)

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4-3. Do-it-yourself maintenance
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Maintenance and care
YARIS_HB_U_52D44U
■When the initialization of the tire pressure warning system has
failed (vehicles with a tire pressure warning system)
Initialization can be completed in a few minutes. However, in the follow-
ing cases, the settings has not been recorded and the system will not
operate properly. If repeated attempts to record tire inflation pressure
settings are unsuccessful, have the vehicle inspected by your Toyota
dealer.
●When operating the tire pressure warning reset switch, the tire pres-
sure warning light does not blink 3 times.
●After driving for a certain period of time since the initialization has
been completed, the warning light comes on after blinks for 1 minute.
■Tire pressure warning system certification
FCC ID: PAXPMVC010
FCC ID: HYQ23AAD
For vehicles sold in U.S.A.
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsi-
ble for compliance could void the user’s authority to operate the equip-
ment.

260 4-3. Do-it-yourself maintenance
YARIS_HB_U_52D44U
CAUTION
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accident
resulting in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Do not tow if your vehicle has a compact spare tire installed.
■When initializing the tire pressure warning system (vehicles with a
tire pressure warning system)
Do not operate the tire pressure warning reset switch without first adjust-
ing the tire inflation pressure to the specified level. Otherwise, the tire
pressure warning light may not come on even if the tire inflation pressure
is low, or it may come on when the tire inflation pressure is actually nor-
mal.

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Maintenance and care
YARIS_HB_U_52D44U
27 ETCS
10 AMultiport fuel injection system/
sequential multiport fuel injection
system
28 HAZ 15 ATurn signal lights, emergency
flashers
29 AM2 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, starting system
30 ECU-B NO.2 5 A Gauges and meters, wireless
remote control system, tire pres-
sure warning system, front passen-
ger occupant classification system
31 ALT-S 7.5 A Charging system
32 R/I 50 AEFI MAIN, EFI NO.2, EFI NO.3,
IG2, IGN, MET, HORN
33 SPARE 20 A Spare fuse
34 SPARE 30 A Spare fuse
FuseAmpereCircuit

284 4-3. Do-it-yourself maintenance
YARIS_HB_U_52D44UUnder the driver’s side instrument panel
FuseAmpereCircuit
1 TAIL NO.2 10 A Parking lights, tail lights, license
plate lights, side marker lights
2PANEL 5 AGauges and meters, instrument
panel lights, switch illumination
3 DOOR R/R 20 A Power windows
4 DOOR P 20 A Power windows
5 ECU-IG NO.1 5 A Electric cooling fan, rear window
defogger, vehicle stability control
system, electric power steering sys-
tem, main body ECU, wireless
remote control system, tire pressure
warning system
6 ECU-IG NO.2 5 A Vehicle stability control system
7 A/C 7.5 AAir conditioning system, rear window
defogger, outside rear view mirror
defoggers
8 GAUGE 10 ABack-up lights, shift lock control sys-
tem, audio system, charging system,
multiport fuel injection system/
sequential multiport fuel injection
system
9 WASHER 15 A Windshield washer
10 WIPER 20 A Windshield wiper

When trouble arises5
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5-1. Essential informationEmergency flashers ......... 296
If your vehicle needs to be towed ........................ 297
If you think something is wrong ............................. 303
Fuel pump shut off system ........................... 304 5-2. Steps to take in
an emergency
If a warning light turns on or a warning buzzer
sounds..
......................... 305
If you have a flat tire......... 315
If the engine will not start ................................ 327
If the shift lever cannot be shifted from P (vehicles
with an automatic
transmission) ................. 328
If you lose your keys ........ 329
If the vehicle battery is discharged ..................... 330
If your vehicle overheats ....................... 334
If the vehicle becomes stuck .............................. 337
If your vehicle has to be stopped in
an emergency ................ 339

5
When trouble arises
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5-1. Essential information
YARIS_HB_U_52D44U
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■ Visible symptoms
● Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● High engine coolant temperature warning light flashes or
comes on
● Low engine coolant temperature indicator comes on or does
not come on continuously
■ Audible symptoms
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
● Engine misfire, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor

5
When trouble arises
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5-2. Steps to take in an emergency
If a war ning light tur ns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.The following warnings indicate a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Parking brake engaged warning buzzer: The buzzer sounds to indicate that the parking brake is still engaged (with
the vehicle having reached a speed of 3 mph [5 km/h]).
Warning lightWarning light/Details
(except Canada) (Canada) Brake system warning light (warning buzzer)
*
• Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is
not released. If the light turns off after the parking
brake is fully released the system is operating nor-
mally.
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then goes
off, this does not necessarily indicate a malfunction in the system.
However, if this continues to o ccur, have the vehicle inspected by
your Toyota dealer.